| 研究生: |
朱順源 chu, shun-yuan |
|---|---|
| 論文名稱: |
TAB銅內引腳接合製程黏塑性力學模擬分析 Viscoplastic Simulation and Analysis of TAB Copper Inner Lead Bounding Process |
| 指導教授: |
李超飛
Lee, Chau-Fei |
| 學位類別: |
碩士 Master |
| 系所名稱: |
工學院 - 工程科學系 Department of Engineering Science |
| 論文出版年: | 2002 |
| 畢業學年度: | 90 |
| 語文別: | 中文 |
| 論文頁數: | 100 |
| 中文關鍵詞: | 黏塑性變形 、內引腳接合 、捲帶自動接合 |
| 外文關鍵詞: | ILB, viscoplastic deformation, TAB |
| 相關次數: | 點閱:184 下載:2 |
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本文針對TAB ( Tape automated bonding )技術之內引腳受壓成形並與金凸塊接合製程ILB( Inner lead bounding process),以Anand黏塑性力學本構模型結合ANSYS有限元素分析軟體模擬後,探討ILB對銅內引腳所造成力學上的影響。
首先在不同應變率及溫度下建立Anand本構方程式中之材料參數值,並以求得之參數與實驗數據比對,以驗證參數之準確性。接著利用ANSYS模擬整個ILB製程。為了真確模擬實際TAB中內引腳於不同製程環境所受到的影響,本文除進行內引腳於ILB壓製成形並與金凸塊結合模擬外,也進行不同溫度之封膠製程及最後置於常溫中放置一段時間之模擬。由ANSYS分析得知銅引腳於每個不同時段下的應力分佈、應變量及應變率等分佈,結果發現引腳最大殘留應力發生處在引腳與壓頭圓端接觸的地方,此處也是內引腳拉伸強度試驗中引腳最容易發生破壞的部位。於150℃的封膠溫度下放置20分鐘可降低20~25﹪的引腳殘留應力值。
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