发明授权
- 专利标题: Multiple uses for BIST test latches
- 专利标题(中): 用于BIST测试锁存器的多种用途
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申请号: US12197691申请日: 2008-08-25
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公开(公告)号: US08006153B2公开(公告)日: 2011-08-23
- 发明人: Steven Ross Ferguson , Garrett Stephen Koch , Osamu Takahashi , Michael Brian White
- 申请人: Steven Ross Ferguson , Garrett Stephen Koch , Osamu Takahashi , Michael Brian White
- 申请人地址: US NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: US NY Armonk
- 代理机构: Dillon & Yudell LLP
- 主分类号: G01R31/28
- IPC分类号: G01R31/28
摘要:
A method, an apparatus, and a computer program are provided to utilize built-in self test (BIST) latches for multiple purposes. Conventionally, BIST latches are single purpose. Hence, separate latches are utilized for array built-in self test (ABIST) and logic built-in self test (LBIST) operations. By having the separate latches, though, a substantial amount area is lost. Therefore, to better utilize the latches and the area, ABIST latches are reconfigured to utilize some previously unused ports to allow for multiple uses for the latches, such as for LBIST.
公开/授权文献
- US20080313512A1 MULTIPLE USES FOR BIST TEST LATCHES 公开/授权日:2008-12-18
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