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適於三維晶片黏合前實施的穿矽孔測試技術

On-Chip TSV Testing for 3D IC before Bonding

摘要


穿矽孔是三維積體電路最重要的元件之一,因為它構成晶片與晶片之間的垂直連線。但是它的兩端唯有在晶片黏合之後才會完整地連結,因此,一般以為直到此時才得以測試,無法在晶片黏合之前預知穿矽孔是否良好。本文中我們提出一個全新的策略,專門用來測試在晶片黏合之前的穿矽孔。此策略借用動態記憶體(DRAM)常用的感測放大技術來執行晶片中穿矽孔的監控。我們運用其固有的電容特性,可以用很少的面積就可以偵測出待測電路中錯誤的穿矽孔。

並列摘要


Through silicon via (TSV) is one of the most important devices for 3D ICs to enable vertical interconnection among stacking layers. Because two ends of a TSV are completely connected only after bonding, it is often thought that there is no way to monitor the quality of TSV before bonding. We present a novel TSV testing scheme by performing on-chip monitoring before bonding, using a sense amplification technique that is commonly seen in a dynamic random access memory (DRAM) circuit. By virtue of the inherent capacitive characteristics, faulty TSVs can be detected with little area overhead for the circuit under test.

被引用紀錄


Chen, P. Y. (2012). 適用於低功耗虛擬靜態隨機存取記憶體的增強型錯誤更正碼方法與適用於三維整合晶片的堆疊前穿矽孔測試技術 [doctoral dissertation, National Tsing Hua University]. Airiti Library. https://doi.org/10.6843/NTHU.2012.00612
Chou, Y. W. (2012). Cost Modeling and Analysis for Interposer-Based 3D ICs with 3D Memory Repair Schemes [master's thesis, National Tsing Hua University]. Airiti Library. https://doi.org/10.6843/NTHU.2012.00587

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