Published Innovation
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Journal Papers
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Patents
0
Conference Papers
Table of Contents
Journal Papers
Journal Papers
2026
2026
Daniele Battegazzore, Alex Anghilieri, Giorgio Nava and Alberto Frache
MDPI (2026)
Using additive manufacturing for the design of inserts in injection moulding (IM) offers advantages in product development and customization. However, challenges related to operating temperature and mechanical resistance remain. This article presents a systematic...
2025
2025
Hai-Tang Chou, Ting-Yu Cheng, Yao-Yang Tsai, Kun-Cheng Ke, Sen-Yeu Yang
Polymer Engineering and Science (2025)
The rapid advancement of virtual reality technology has heightened the demand for high-quality microlens arrays, necessitating precise optical quality control. This study investigates injection compression molding to produce microlens arrays, using in-mold pressure and temperature...
2024
2024
Tseng Huan-Chang, Chang Rong-Yeu
Molecular Simulation (2024)
Linear viscoelasticity is very important for chain-molecular fluids. The generalised Maxwell constitutive equation is classical in which the linear viscoelastic fluids consist of a series of spring and dashpot. It is significant to identify the generalised Maxwell fluid of linear...
2023
2023
Simon Johannes Gräfner, Jeng-Hau Huang, Po-Yi Wu, Vengudusamy Renganathan, Po-Shao Shih, C. R. Kao
Advanced Materials (2023)
Microchannels with integrated pillars have enhanced the production capabilities and performance of various applications due to their high surface-to-volume ratio. However, emerging gas bubbles can become trapped, potentially limiting the functionality or efficiency...
Yuan-Jung Chang, Rong-Yeu Chang, and Tim A. Osswald
Physics of Fluids (2023)
Bulk viscoelasticity is not well studied and understood in the field of polymer processing. Its behavior in solid mechanics applications, such as time-dependent bulk modulus and time-dependent thermal expansion, was rarely considered but started to receive attention recently...
Huan-Chang Tseng
Journal of Thermoplastic Composite Materials (2023)
An ear-flow front is discovered in the industrial practice of injection molding, especially for fiber-reinforced composites; the advance of the flow front in the center of the cavity is obviously slower than at the edges. To date, such a peculiar flow has not yet been predicted...
Huan-Chang Tseng
Korea-Australia Rheology Journal (2023)
Interested in the previous work of Walters et al. (Korea Aust Rheol J 21:225–233, 2009) regarding the competing roles of extensional viscosity and normal stress differences in complex flows of elastic liquids, rheological studies rarely discuss the relationship between...
Huan-Chang Tseng
Korea-Australia Rheology Journal (2023)
Vortex growth is related to the extensional thickness viscosity of polymer melts flowing through contractions, whereas the shear thinning viscosity results in no significant vortex. The nonlinearity of extensional viscosity in relation to molecular architectures and additive...
Huan-Chang Tseng
Int Polym Process (2023)
In state-of-the-art predictive engineering software for injection molded fiber composites, it is challenging to discuss the effect of fiber properties, including fiber content and aspect ratio, on the shell-core fiber orientation and anisotropic flow front. Recently, the flow-fiber coupled...
Haoyan Wei, C. T. Wu, Wei Hu, Tung-Huan Su, Hitoshi Oura, Masato Nishi, Tadashi Naito, Stan Chung, Leo Shen
Journal of Engineering Mechanics (2023)
Short fiber reinforced composites (SFRC) are high performance engineering materials for lightweight structural applications in the automotive and electronics industries. Typically, SFRC structures are manufactured by injection molding, which induces heterogeneous...
C.K. Chou, C.T. Wu, L.H. Shen, D.L. Young
Engineering Analysis with Boundary Elements (2023)
The primary objective of this research is to develop a finite volume method that can incorporate the most widely recognized upwind schemes using meshless techniques on an unstructured mesh. The recently developed Meshless Approximation Finite Volume Method (MAFVM)...
Mao-Ken Hsu, Wei Chen, Bo-Yu Huang, Li-Hsuan Shen, Chia-Hsiang Hsu, Rong-Yeu Chang and Chi-Hua Yu
Frontiers in Materials (2023)
In response to the global trend of carbon reduction over the last few years, various industries, including the aviation and automobile industries, have gradually begun research, design, and production of carbon fiber composite materials. These have excellent mechanical properties...
Konrad Rienesl, Philipp S. Stelzer, Zoltán Major, Chih-Chung Hsu, Li-Yang Chang, Kepa Zulueta
Frontiers in Materials (2023)
Injection molded short fiber reinforced components reveal a sound light weight potential with moderate costs and thus are widely used in many demanding engineering applications. The accurate determination of the fiber orientation (FO) is essential for predicting the overall...
Leonhard K. Doppelbauer, Konrad Rienesl, Philipp S. Stelzer, Kepa Zulueta, Li-Yang Chang, Zoltán Major
Composites Part A (2023)
Modeling the compressive behavior of carbon fiber sheet molding compounds (CF-SMC) during processing can be a difficult task. This is due to the pronounced porosity of SMC materials, which cannot be adequately reproduced by currently available compressibility models...
Huan-Chang Tseng
Int Polym Process (2023)
In capillary rheometry of a polymer melt, the total pressure drop consists of three primary components: shear viscosity, extensional viscosity, and normal stress differences. Traditionally, viscoelastic constitutive equations have been used to produce accurate predictions...
Huan-Chang Tseng
Int Polym Process (2023)
A modified White-Metzner viscoelastic constitutive equation is incorporated into the state-of-the-art Three Dimensional Computational Fluid Dynamics (3D-CFD) framework for performing isothermal and non-isothermal entry flow simulations of a polymer melt. As a result...
Huan-Chang Tseng
Int Polym Process (2023)
The famous informed isotropic (IISO) viscosity successfully dominates the broader core structure of fiber orientation distributions for injection-molded long fiber composites, due to the flow-fiber coupling effect of stretching deformation. Recently, the GNF-X...
Yu‑Ho Wen, Chen‑Chieh Wang, Guo‑Sian Cyue, Rong‑Hao Kuo,· Chia‑Hsiang Hsu, Rong‑Yeu Chang
Rheologica Acta (2023)
Extensional rheology of a variety of linear and branched polymer melts is investigated using entry flow measurements and 15:1 axisymmetric contraction flow simulations. Using a Cogswell model analysis, we show that log−log plots of entrance pressure drop versus wall...
Simon Johannes Gräfner, Jeng-Hau Huang, Vengudusamy Renganathan, Po-Yu Kung, Po-Yi Wu, C.R. Kao
Chemical Engineering Science (2023)
The trend of chip-packaging in the semiconductor industry is pointing towards 3D integrated circuits and scaling down to attain devices with enhanced efficiency and performance. To overcome the reassimilating challenges, we propose the usage of an electroless plated...
2022
2022
Huan-Chang Tseng
International Polymer Processing (2022)
It is difficult to directly measure the steady extensional viscosity of thermoplastic composite materials, especially at high extension rates. The famous Cogswell method was derived analytically from the pressure drop of entrance flow in commercial capillary rheometers for...
Huan-Chang Tseng
International Polymer Processing (2022)
Extensional flows generally take place in a channel with varied cross-sectional areas. During polymer processing with a variety of complex geometric features, it is difficult to separate extensional rates from shear rates in state-of-the-art predictive engineering tools of...
Huan-Chang Tseng
International Polymer Processing (2022)
The corner vortex phenomenon occurring in entry flow is relevant to both polymer rheology and polymer processing. The famous viscoelastic constitutive equations in numerical computations of fluid mechanics have always had limited relevance at low apparent shear rates...
Huan-Chang Tseng
Journal of Non-Newtonian Fluid Mechanics (2022)
On pursuing the seminal work of Jeffery's orbit (1922), the pioneering rheologists were inspired to originate modern suspension rheology in a fiber-filled viscous fluid. Understanding the flow-induced orientation distribution within fiber-reinforced thermoplastics (FRT) composites is...
Wei Qi, Tzu-Heng Chiu, Yi-Kai Kao, Yuan Yao, Yu-Ho Chen, Hsun Yang , Chen-Chieh Wang, Chia-Hsiang Hsu, and Rong-Yeu Chang
Polymers (2022)
To meet the expectation of the industry, resin transfer molding (RTM) has become one of the most promising polymer processing methods to manufacture fiber-reinforced plastics (FRPs) with light weight, high strength, and multifunctional features. The permeability and porosity...
2021
2021
Yu-Ho Wen, Chen-Chieh Wang, Guo-Sian Cyue, Rong-Hao Kuo, Chia-Hsiang Hsu and Rong-Yeu Chang
Polymers (2021)
For highly viscous polymer melts, considerable fluid temperature rises produced by viscous heating can be a disturbing factor in viscosity measurements. By scrutinizing the experimental and simulated capillary pressure losses for polymeric liquids, we demonstrate the importance...
Huan-Chang Tseng
Physics of Fluids (2021)
A viscosity overshoot of fibers filled in a polymer melt under a shear flow is much tougher to predict via the existing constitutive equations of suspension rheology in a viscous media, owing to the effect of fiber orientation on the viscoelastic behavior. The WMT-X (White–Metzner...
Huan-Chang Tseng
Physics of Fluids (2021)
Predicting a transient stress overshoot for polymer melts under startup shear flow is challenging. In recent, the classical White–Metzner (WM) constitutive equation of nonlinear viscoelastic fluids was potentially extended. For viscoelastic material functions, the minus...
Huan-Chang Tseng
Physics of Fluids (2021)
The famous White–Metzner (WM) constitutive equation expresses a relatively simple nonlinear viscoelastic fluid of polymer melts. However, such a differential stress model, substantial with strong hyperbolic and singular problems, has hitherto always obtained unsatisfactory...
Yuan-Jung Chang, Rong-Yeu Chang, and Tim A. Osswald
Physics of Fluids (2021)
Bulk viscosity describes the irreversible resistance to the rate of volume change. Bulk viscosity, which is more than ten thousand times higher than shear viscosity, has been ignored in the field of polymer processing for the past decades. Bulk viscosity may play an important role for...
Before 2021
Patents
Patents
For further details, please contact Moldex3D or use "Patent Public Search"
2024
2024
电子设备的项目比较分析图形用户界面的数据分析图表
李正光、王鎮杰、許嘉翔、張榮語
Patent No.: ZL 202130596047.X
提供創新的材料視覺化呈現方式，使用者能直觀比較材料特性與相容性，並提升原材料與替代材料評估效率。
2023
2023
Method of mesh generation for resin transfer molding process
Ching-Kai Chou, Chien-Ting Wu, Hsun Yang, Li-Hsuan Shen, Chih-Chung Hsu, Rong-Yeu Chang
Patent No.: US 11,602,908 B1
The present disclosure provides a method of mesh generation for an RTM process, including operations of: obtaining a geometry of a target object; generating a solid mesh of the target object according to the geometry; obtaining material characteristics of the target object...
DISPLAY SCREEN OR PORTION THEREOF WITH GRAPHICAL USER INTERFACE
Cheng-Kuang Lee, Chen-Chieh Wang, Chia-Hsiang Hsu, Rong-Yeu Chang
Patent No.: US D1,003,928 S
2022
2022
METHOD OF SETTING PRESSURE PROFILE OF INJECTION-MOLDING APPARATUS
Rong-Yeu Chang, Yuing Chang, Chia-Hsiang Hsu, Ting-Yu Cheng
Patent No.: US 11230044 B2
The present disclosure provides a method of producing a molded product. The method comprises steps of performing, via computer-assisted engineering simulation software, a first simulation process to generate a plurality of molding conditions comprising a default...
METHOD FOR SETTING MOLDING CONDITIONS OF INJECTION-MOLDING EQUIPMENT
Rong-Yeu Chang, Chia-Hsiang Hsu, Chuan-Wei Chang
Patent No.: US 11230043 B2
A system for setting injection-molding conditions and a method for setting actual molding conditions of an injection-molding machine are disclosed. The system includes a computer and an injection-molding equipment. The computer is configured to simulate, via computer-aided...
SYSTEM AND METHOD FOR SETTING MOLDING CONDITIONS OF INJECTION-MOLDING EQUIPMENT
Rong-Yeu Chang, Chia-Hsiang Hsu, Chuan-Wei Chang
Patent No.: US 11225005 B2
A system for setting injection-molding conditions and a method for setting actual molding conditions of an injection-molding machine are disclosed. The system includes a computer and an injection-molding equipment. The computer is configured to simulate, via computer-aided...
METHOD OF MEASURING TRUE SHEAR VISCOSITY PROFILE OF MOLDING MATERIAL IN CAPILLARY AND MOLDING SYSTEM PERFORMING THE SAME
Chen-Chieh Wang, Yu-Ho Wen, Guo-Sian Cyu,
Chia-Hsiang Hsu, Rong-Yeu Chang
Patent No.: US 11376776 B2
The present disclosure provides a method of measuring a true shear viscosity profile of a molding material in a capillary and a molding system performing the same. The method includes the operations of: determining a setpoint temperature of the molding material before...
METHOD OF MEASURING UNDERFILL PROFILE OF UNDERFILL CAVITY HAVING SOLDER BUMPS
Yu-En Liang, Chia-Peng Sun, Chih-Chung Hsu, Rong-Yeu Chang, Chia-Hsiang Hsu
Patent No.: US 11355361 B1
The present disclosure provides a method for measuring an underfill profile of an underfill material in an underfill cavity having a plurality of solder bumps. The method includes the operations of: determining a mesh having a plurality of elements according to the underfill...
MOLDING SYSTEM FOR PREPARING AN INJECTION-MOLDED ARTICLE
Huan-Chang Tseng, Rong-Yeu Chang, Chia-Hsiang Hsu
Patent No.: US 11407156 B1
The present disclosure provides an injection-molding system for preparing an injection-molded article using a computer-aided engineering (CAE) simulation. The molding system includes a molding machine; a mold disposed on the molding machine and having a mold cavity for...
MOLDING SYSTEM FOR PREPARING MOLDED ARTICLE WITH ORIENTATION EFFECT
Huan-Chang Tseng, Rong-Yeu Chang, Chia-Hsiang Hsu
Patent No.: US 11376777 B1
A molding system includes a molding machine, a mold disposed on the molding machine, a processing module, and a controller operably communicating with the processing module. The molding machine includes a barrel, a screw moving within the barrel, a driving motor driving...
METHOD OF MEASURING EXTENSIONAL VISCOSITY OF POLYMER MELTS AND CAPILLARY INJECTION SYSTEM
Huan-Chang Tseng, Rong-Yeu Chang, Chia-Hsiang Hsu
Patent No.: US 11378505 B1
The present disclosure provides a method of measuring an extensional viscosity of a polymer melt and a capillary injection system. The method includes the operations of: based on a weighted GNF viscosity model, obtaining a viscosity profile of the polymer melt...
METHOD OF MEASURING VOIDS IN UNDERFILL PACKAGE
Chien-Ting Wu, Ching-Kai Chou, Kai-Yi Bai, Wei-Yu Lin, Li-Hsuan Shen, Chia-Peng Sun, Chih-Chung Hsu, Rong-Yeu, Chang, Chia-Hsiang Hsu
Patent No.: US 11521903 B1
The patent disclosure provides a method of measuring a plurality of voids in an underfill material of an underfill package. The method includes operations of obtaining a welding angle profile of the underfill package; obtaining a simulated void profile of the underfill package...
2021
2021
MOLDING SYSTEM FOR PREPARING THERMOPLASTIC COMPOSITE ARTICLE
Huan-Chang Tseng, Rong-Yeu Chang, Chia-Hsiang Hsu
Patent No.: US 11065795 B1
The present disclosure provides a molding system for preparing an injection-molded plastic article. The molding system includes a molding machine; a mold disposed on the molding machine and having a mold cavity for being filled with a molding resin including a plurality...
MOLDING SYSTEM FOR PREPARING INJUECTION-MOLDED ARTICLE
Huan-Chang Tseng, Rong-Yeu Chang, Chia-Hsiang Hsu
Patent No.: US 11027470 B1
A molding system includes a molding machine having a screw, a driving motor driving the screw to move a molding resin; a mold disposed on the molding machine and connected to the barrel of the molding machine to receive the molding resin, and having a mold cavity with...
CLAMPING MECHANISM ASSEMBLY
Yuing Chang, Chih-Kang Lee, Chia-Hsiang Hsu, Rong-Yeu Chang
Patent No.: US 10987844 B1
"The present disclosure provides a clamping assembly in operative connection with a mold of an injection-molding apparatus. The clamping assembly includes a fixed plate, a rear plate, a plurality of tie bars, a movable plate, a driving module, and a temperature adjuster. The rear...
COMPUTER-IMPLEMENTED SIMULATION METHOD FOR INJECTION-MOLDING PROCESS
Chih-Chung Hsu, You-Sheng Zhou, Rong-Yeu Chang, Chia-Hsiang Hsu
Patent No.: US 10960592 B2
A computer-implemented simulation method for use in a molding process by a computer process is disclosed. The method includes steps of specifying a simulating domain comprising a mold cavity and a barrel of an injection machine, wherein the barrel is configured to connect...
METHOD FOR MEASURING A FLOWING PROPERTY IN A RESIN TRANSFER MOLDING SYSTEM
Yuan Yao, Tzu-Heng Chiu, Rong-Yeu Chang, Chua-Hsiang Hsu, Chih-Wei Wang, Shih-Po Sun, Sung-Wei Huang, Husn Yang, Tsai-Heng Tsai
Patent No.: US 10946597 B2
The present disclosure provides a measurement method for a molding system comprising an upper mold and a lower mold forming a mold cavity. The method includes applying a pressure difference to a molding resin for driving the molding resin to flow into a preform in the mold...
MOLDING SYSTEM FOR PREPARING MOLDING ARTICLE
Yuan-Jung Chang, Rong-Yeu Chang, Chen-Chieh Wang, Chia-Hsiang Hsu
Patent No.: US 10940623 B1
The present disclosure provides a molding system for preparing molding articles. The molding system includes a molding machine; a mold disposed on the molding machine and having a mold cavity for being filled with a molding resin; a processing module configured to generate...
MOLDING SYSTEM FOR PREPARING INJECTION-MOLDED ARTICLE
Huan-Chang Tseng, Rong-Yeu Chang, Chia-Hsiang Hsu
Patent No.: US 10919202 B1
The present disclosure provides a molding system for preparing injection-molded articles. The molding system includes a molding machine; a mold disposed on the molding machine and having a mold cavity for being filled with a molding resin; a processing module configured to...
树脂转移模制系统的流动特性的测量系统和测量方法
姚遠、邱子恆、張榮語、許嘉翔、王智偉、孫士博、黃松煒、楊巡、蔡在恒
Patent No.: ZL201810418824.9
本公开提供一种测量系统，应用于测量模制系统的纤维预制件的渗透率/孔隙率比值。在一些实施例中，该测量系统包括一模具、一检测装置、一树脂供应源和一计算装置。该模具包括一上模具和一下模具，其间形成一模具腔。该树脂供应源经配置以将一成型树脂输入该模具腔内的该预制...
2020
2020
MOLDING SYSTEM FOR PREPARING AN IN-MOLD DECORATED ARTICLE
Chih-Chung Hsu, Tung-Huan Su, Hsien-Sen Chiu, Chia-Hsiang Hsu, Rong-Yeu Chang
Patent No.: US 10864667 B2
A molding system comprises a mold, a molding machine, a computing apparatus, and a controller. The computing apparatus is programmed to perform a first simulation to generate a velocity distribution and a temperature distribution of the molding material in a first portion of...
MOLDING SYSTEM FOR PREPARING INJECTION-MOLDED ARTICLE
Huan-Chang Tseng, Rong-Yeu Chang, Chia-Hsiang Hsu
Patent No.: US 10713402 B1
The present disclosure provides a molding system for preparing an injection-molded article. The molding system includes a molding machine; a mold disposed on the molding machine and having a mold cavity for being filled with a molding resin; a processing module configured...
MOLDING SYSTEM FOR PREPARING FIBER-REINFORCED THERMOPLASTIC COMPOSITE ARTICLE
Huan-Chang Tseng, Rong-Yeu Chang, Chia-Hsiang Hsu
Patent No.: US 10710285 B1
The present disclosure provides a molding system for preparing injection-molded articles. The molding system includes a molding machine; a mold disposed on the molding machine and having a mold cavity for being filled with a molding resin; a processing module configured...
MOLDING SYSTEM FOR PREPARING FIBERLESS THERMOPLASTIC COMPOSITE ARTICLE
Huan-Chang Tseng, Rong-Yeu Chang, Chia-Hsiang Hsu
Patent No.: US 10703030 B1
The present disclosure provides a molding system for preparing an injection-molded fiberless plastic article. The molding system includes a molding machine; a mold disposed on the molding machine; a processing module configured to generate an anisotropic viscosity...
METHOD FOR SETTING UP A MOLDING SYSTEM
Yuing Chang, Rong-Yeu Chang, Chia-Hsiang Hsu, Chuan-Wei Chang, Ching-Chang Chien
Patent No.: US 10562218 B2
The present disclosure provides a method for operating a molding system. The molding system includes a molding machine and a mold disposed on the molding machine, wherein the mold has a mold cavity for being filled with a molding material from the molding machine...
一种成型系统及其设定方法
張英、張榮語、許嘉翔、張權緯、簡錦昌
Patent No.: ZL201811353275.8
本公开提供一种成型系统及其设定方法。该成型系统包括一成型机及设置于该成型机的上方的一模具，该模具具有一模穴，经配置以填充来自该成型机的一成型材料。该设定方法包括：使用一预定保压程序产生一第一状态波形及一第二状态波形；基于该第一状态波形及该第二状态波形...
Before 2020
Conference Papers
Conference Papers
If you are interested to read more, please contact Moldex3D for more information.
2025
2025
Development and Application of an AI-Assisted System for Enhancing the Efficiency of Plastic Mold Design
Ji-Fang Chen
ANTEC (2025)
With advances in injection molding and diverse manufacturing demands, accelerating mold development and improving quality have become key challenges. This study proposes an AI-assisted mold design system integrating database matching and predictive models...
Application of AI optimization in mold flow analysis
Yi-Ting Chen, Ching-Yu Fan, Shu-Ping Hu
ANTEC (2025)
Traditional optimization of injection-molded product quality relies heavily on trial-and-error or DOE methods, whose efficiency and flexibility become limited when dealing with multi-objective and constrained problems. Such problems often involve conflicting quality factors and require...
Towards High-Fidelity Simulation of Fiber-Reinforced Thermoplastics Using AI-Driven Intelligence and Molding Simulation
Arash Jahangir, Joshua Thean, Jim Hsu
ANTEC (2025)
Fiber-Reinforced Thermoplastics (FRTs), in both short- and long-fiber forms, are increasingly adopted in aerospace, automotive, and electronics industries due to their lightweight and high-performance characteristics. However, their broader use has been hindered by the limitations...
Integrating Weld Line Effects from Molding Processes into Structural FEA
Chih-Yi Chung, Ming-Yu Lin, Li-Hsuan Shen, Chih-Chung Hsu
ANTEC (2025)
Weld lines can significantly reduce the strength of injection-molded parts. This work introduces a workflow to incorporate weld line effects into structural FEA. For fiber-filled polymers, weld line regions are identified through orientation and meeting angle, while for unfilled polymers...
提升塑膠模具設計效率之AI輔助系統研究與實作
Ji-Fang Chen
模具公會 (2025)
隨著塑膠射出成型技術的進步與製造需求的多樣化，如何加速模具開發流程並提升成型品質，已成為當前產業關注的重點。本文提出一套結合資料庫比對與人工智慧模型的智慧化塑膠模具設計輔助系統，旨在協助工程師在模具設計初期能進行快速分析與成型參數預測，從而提升設計效率...
AI最佳化於模流分析中的應用
Yi-Ting Chen, Ching-Yu Fan, Shu-Ping Hu
模具公會 (2025)
隨著人工智慧(AI)技術於各領域迅速發展，工程領域亦迎來前所未有的變革契機。以往射出成型產品的品質優化，常仰賴試誤法（Trial and Error）與實驗設計（Design of Experiments, DOE）等方法進行改善，這些傳統手法雖具系統性，卻在面對複雜條件或多變參數時，可能面臨資源與時間...
2024
2024
Enhancing Electric Vehicle Efficiency Through Simulation-Based Optimization of Battery Covers
Chih-Chung Hsu
ANTEC (2024)
As the automotive industry embraces sustainable practices, Electric Vehicles (EVs) have emerged as a key solution for reducing carbon emissions and reliance on fossil fuels. A crucial element of advancing EV technology is optimizing component geometries made from...
The Impact of Vacuum on Dynamic Void Evolution During the IC Packaging Process
Guo-Sian Cyue, Chih-Chung Hsu
ANTEC (2024)
Transfer molding is a widely used process in electronic packaging, where flow front merging often occurs due to the presence of chips. This merging can lead to trapped air, resulting in void formation within the molded product. The presence of voids is detrimental to the stability and...
Integrated Analysis and Application of Mold Cooling System with Mold Temperature Control Perf
Che-Ping Lin
ANTEC (2024)
In the injection molding industry, ensuring that the flow rate and pressure within the cooling channels are within the optimal range is crucial for improving production efficiency and product quality. This can be achieved by selecting the appropriate mold temperature controller...
Hybrid Hele-Shaw Navier-Stokes Simulation for Capillary Underfill Flow: A Numerical Analysis
Chien-Ting Wu, Leo Shen
ICEP (2024)
電子封裝轉移成型氣體包封動態演變之研究
Guo-Sian Cyue, Chih-Chung Hsu
模具公會 (2024)
轉移成型是廣泛使用於電子封裝的成型製程。因為晶片的存在，模流的回包現象廣泛的發生在成型製程中。模流回包所形成的氣體包封可能會在成型品中形成孔洞。孔洞的存在會對電子元件的穩定性及可靠度造成影響，尤其是隨著先進製程精度要求提高，覆晶封裝晶片底部的孔洞...
大數據集成式學習技術建立射出件多品質目標預測之開發
Sun Zhiheng , Huang Jiayou, Zheng Tingyu, Zhang Quanwei, Ke Kuncheng
模具公會 (2024)
現今智慧製造技術中感測資訊是核心關鍵。然而大量多模態測試增加時間和成本，成為產業升級的主要挑戰。透過高效率之資料探勘技術能提高製程和產品品質，滿足客戶需求且減少試模時間和人力成本。本研究旨在利用關鍵領域知識和人工智慧技術，縮小品質預測之誤差。透過全因子...
整合模溫機性能之模具水路分析與應用
Che-Ping Lin
模具公會 (2024)
在射出成型産業中，爲了提高生產效率和産品質量，確保冷却水路中的流速和壓力處於適宜的範圍是關鍵，這需要通過選用適當的模溫機來實現。通過合理設計和調整模溫機及冷却水路，可以確保冷却液在模具中均勻地流動，從而實現最佳的冷却效果。然而很多時候，選用錯誤的模溫機...
Applying Hybrid Numerical Simulation of Capillary Underfill Flow to Advanced Packaging Technologies in Fine Pitch Multi-Chip Modules
Chien-Ting Wu
IMPACT (2024)
High Density Interconnect (HDI) Socket Dynamic Warpage Prediction by Mori-Tanaka Model
Chun Keang Ooi; Muhammad Naqib Nashrudin; Philip Chang; Wen Li Xu; Lili Ding; Pierre-Louis Toussaint
IEMT (2024)
2023
2023
Development and Practical Application of CAE Simulation Mold Trials Process
Ting-Yu Cheng, Kuang-Kuo Wu, Ying-Hsun Chang, Chia-Hsiang, Hsu, Wen-Li Yang
模具公會
「碳排放 」為當今時下最熱門的話題，是目前全球努力想實現減少甚至達到零碳排，然而在塑膠成型產業中， 時常讓人覺得碳排放量高不環保，尤其是塑膠模具都得經過試模階段，從開始到量產產品階段這過程中，有非常多環節會製造碳排放，其中以試模這個階段最為關鍵，因為試模...
Optimization of 2.2D underfill process by novel methodology and direct observation of capillary underfill process
Chia-Peng Sun, Yu-En Liang, Dyi-Chung Hu, EH Chen, Jeffrey Chang, Bing Lee, Srikar Vallury
ECTC
With the rapid development of High Performance Computing (HPC) and chiplets, multi-die integration on a large substrate for heterogeneous integration is a crucial technology for system integration. After the dies are bonded to the substrate, underfill is required to fill the...
In-situ observation of underfill dispensing process
Dyi Chung Hu, Erh Hao Chen, Jeffrey Chang, Bing Lee, Chia Peng Sun, Yu En Liang
ICEP
In this work, a test vehicle (TV) is designed that makes the in-situ observation of underfill dispensing possible. The test structure is made of a transparent glass die with a thin film pattern on top. The thin film structure mimics the outer layer of the actual chip. It has the...
Predicting void reduction of flip chip package in the pressure oven
Li-Hsuan Shen, Chien-Ting Wu, Dyi-Chung Hu, EH Chen, Jeffrey ChangBing Lee
ICEP
The void issue in the Flip-Chip Underfill package has been announced frequently. The unbalanced capillary underfills flow pattern occurs due to a non-uniform distributed bump pattern [1, 2, 3]. In addition, the market demands to underfill multiple dies in a large substrate...
2022
2022
High Density Interconnect (HDI) socket flow & waprage prediction & characterization
Renn Chan Ooi, Franco Costa, Sam Hsieh, Ethan Chiu, Wendy Xu, Dave Yu, Darwin Fan, Allen Cheng, Andrew Gattuso, Yongfu Wang, Currey Hsieh, Jeffery Toran, John Thompson, Pierre-Louis Toussaint, Ryan Curry, Loh Wei Keat, Ron Kulterman, Haley Fu
EPTC
High density interconnect (HDI) sockets for CPU, GPU etc. is trending to larger form factor as the interconnect counts approach the realm of 10,000. One of the key bottleneck in HDI socket development is the ability of flow and warpage simulation techniques to reduce the design...
An integrated three dimensional numerical simulation of nonlinear warpage analysis for injection-molding process
Hsiang-Liang Lin, Li-Hsuan Shen, Chih-Chung Hsu, Rong-Yeu Chang
ANTEC
Nonlinear warpage analysis which considers different kinds of nonlinearity effects has attracted more and more attention recently, especially in the automotive industry. This study is mainly aimed at using the new functions in Moldex3D, “Nonlinear warp analysis” and...
A complete fiber orientation investigation of compression molding process for sheet molding compound (SMC)
Kaori Oshita, Satoshi Morita, Atsushi Kawada, Hirokuni Fujita, Masahiro Hakotani, Chun-Hsiang Wang, Chih-Chung Hsu, Hsien-Sen Chiu, Li-Yang Chang, Nai-Jen Hsiao, Kai-Yuan Wang
PPS
Compression molding is a high-volume, high-pressure method suitable for molding complex, high strength fiber glass reinforcements. Materials that are typically manufactured in compression molding are thermosetting resins with chopped glass/carbon fibers as the sheet...
Study on the correlation between the micro fiber orientation distribution and macro geometrical shrinkage changes
Jun-Zheng Wang, Chao-Tsai (CT) Huang*, Sheng-Jye Hwang, Po-Wei Huang3, Hsin-Shu Peng, Chih-Che Wu, and Chun-I Tu
PPS
The micro-structures of the fibers have been regarded as the main content to enhance the strength for fiber-reinforced plastics (FRP) products. However, the micro-structures inside plastic matrix are very complex, they are not easy to be visualized and managed. Moreover...
Study on the fiber orientation variation due to bubble effect in fiber reinforced microcellular injection molding
Le Ke, Jun-Zheng Wang, Chao-Tsai (CT) Huang, Shyh-Shin Hwang, and Rong-Yeu Chang
PPS
Due to its great functionality, the fiber reinforced thermoplastics (FRP) has been applied in industrial as one of the lightweight technologies for many years. However, the non-uniform shrinkage and warpage due to the fiber microstructure becomes one of the big challenges...
A novel equivalent model for underfill molding process on 2.2D structure for high performance applications
Yu En Liang, Chia Peng Sun, Chih Chung Hsu, Dyi Chung Hu, Er Hao Chen, Jeffrey Changbing Lee
ECTC
Different optimization methods or strategies have been proposed and utilized to enhance the quality of injected products for many years. However, what is the machine characteristics to influence the efficiency of the optimization method? It is not fully understood yet. In this study...
Discover the physical mechanism of the interface formation in co-injection molding using rheological behavior
You-Ti Rao, Kuan-Yu Ko, Chao-Tsai Huang, Chih-Chung Hsu, You-Sheng Zhou, David Hsu, Rong-Yue Chang, and Shi-Chang Tseng
ANTEC
Co-injection molding has been introduced into industrial application for several decades. However, due to the formation of the interface between skin and core materials is very difficult to be observed, and controlled, a good quality of co-injection product can not be obtained...
Study on machine identification and its effect on the rsm optimization in injection molding
Rui-Ting Xu, Tsung-Han Wang, Chao-Tsai (CT) Huang, Po-Hsuan Chen, Wen-Ren Jong, Shia-Chung Chen, David Hsu and Rong-Yeu Chang
ANTEC
Different optimization methods or strategies have been proposed and utilized to enhance the quality of injected products for many years. However, what is the machine characteristics to influence the efficiency of the optimization method? It is not fully understood yet. In this study...
Experiment and simulation of 1D flow and in-plane permeability validation considering fabrics orientation effects in resin transfer molding
Yu-Ho Chen, Yi-Kai Kao, Chen-Chieh Wang, Hsun Yang, Yuan Yao, Chia-Hsiang Hsu Rong-Yeu Chang
ANTEC
The main target for Design for Manufacturing and Assembly (DFMA) is to integrate multiple components with multiple functions to minimize cost and efforts. In addition, a family mold system has been utilized in industrial manufacturing to make a series integrated components...
2021
2021
Thermal-flow simulation for heating module of thermoplastic pvt instrument
Shi-Chang Tseng, Shyang-Jye Chang, Li Fang, Chia-Kai Chang, Jian-He Liao, Jen-Jye Wang, De-Long Lai
模具公會
Due to the production development, for the quality and stability of plastics have higher requirements, the traditional method for improving quality mainly depends on experience to adjust and optimize controlling technology and injection molding parameters. There’s no...
Study on the dynamic behavior of skin/core interface and its quantification in co-injection molding
Kuan-Yu Ko, Chao-Tsai (CT) Huang, You-Ti Rao, Gwo-Geng Lin, Chih-Chung Hsu, Tim Chou, David Hsu, and Shi-Chang Tseng
模具公會
The co-injection molding process has been widely used in daily life or in many industries. Its characteristic is to combine different color or different materials to make the skin and core structure products, such as: uniquely designed furniture (for example: Lattoflex's Winx300...
3D numerical simulation and experimental observation of bubble growth and shrinkage in nitrogen-gas saturated molten polymer for the foam molding process
Cheng-Hong Pai, Li-Yang Chang, Chih-Chung Hsu
模具公會
The foam injection molding method is popular in various industries by its superior physical properties e.g., low thermal conductivity, low relative density, good shock absorbance, low dielectric transmission loss, and good sound absorption than solid plastics. These superior...
Organic package warpage predictive modelling methodologies
Kang Eu Ong , Wei Keat Loh , Philip Chang , Arvind Purushotaman , Tatsuro Yoshida , Kei Murayama , Makoto Tsukahara , Ron W. Kulterman , Haley Fu
IMPACT
The present study focuses on organic package warpage modeling with copper wiring filled with different polymer materials for Core and Build Up. A modeling methodology using trace mapped model along with viscoelastic and PVTC material models were used to predict package...
Study on the quantification of the advancement of core material in co-injection molding products
Kuan-Yu Ko , Chao-Tsai (CT) Huang , Chih-Chung Hsu , You-Sheng Zhou , David Hsu , and Shi-Chang Tseng
ANTEC
Co-injection molding has been developed for decades. However, due to too many factors which can affect its processing, it is very difficult to obtain good quality of coinjected products all the time. One of the major challenges is that the prediction and management of the advancement...
3D numerical simulation and experimental observation of bubble growth and collapse in nitrogen-gases
Kentaro Taki, Allen Peng, Barry Pai, Grace Chang, Robert Chang, Jim Hsu, Hideo Akimoto, Hisahiro Tanaka
ANTEC
Co-injection molding has been developed for decades. However, due to too many factors which can affect its processing, it is very difficult to obtain good quality of coinjected products all the time. One of the major challenges is that the prediction and management of the advancement...
Study on the flow-fiber couling and its influence on the shrinkage of frp injection parts
Cheng-Hong Lai, Chao-Tsai (CT) Huang, Jia-Hao Chu ,Wei-Wen Fu, Sheng-Jye Hwang, Hsin-Shu Peng, Chih-Che Wu, and Chun-I Tu
ANTEC
The fiber-reinforced plastics (FRP) material has been applied into industry as one of the major lightweight technologies, especially for automotive or aerospace products. The reason why fibers can enhance plastics is because of their microstructures. One of those microstructures...
Viscous heating correction for shear viscosity of polymer mets in capillary rheometry
Yu-Ho Wen, Chen-Chieh Wang, Chia-Hsiang Hsu, and Rong-Yeu Chang
ANTEC
The fiber-reinforced plastics (FRP) material has been applied into industry as one of the major lightweight technologies, especially for automotive or aerospace products. The reason why fibers can enhance plastics is because of their microstructures. One of those microstructures...
Investigate on the degree of assembly for components in an injection family mold system
Tsai-Wen Lin, Chao-Tsai (CT) Huang, Wen-Ren Jong
, and, Shia-Chung Chen
ANTEC
Co-injection molding has been introduced into industrial application for several decades. However, due to the formation of the interface between skin and core materials is very difficult to be observed, and controlled, a good quality of co-injection product can not be obtained...
On the development of a mold with conformal cooling channel for metal injection molding
Wei-Chen Zhou, Pei-Bo Sung, Yao-Chen Tsai, Jian-Hong Lin, Chia-Hsiang Hsu, Jiing-Yih Lai
模具公會
Conventional 2D cooling channels may not be easy to deal with the problem of non-uniform temperature distribution for multi-cavity molds in metal injection molding, and may cause shaping defects of the product. We develop an integrated technology for the MIM product...