发明申请
US20130159803A1 ASYNCHRONOUS CIRCUIT WITH AN AT-SPEED BUILT-IN SELF-TEST (BIST) ARCHITECTURE
有权
具有快速内置自检(BIST)架构的异步电路
- 专利标题: ASYNCHRONOUS CIRCUIT WITH AN AT-SPEED BUILT-IN SELF-TEST (BIST) ARCHITECTURE
- 专利标题(中): 具有快速内置自检(BIST)架构的异步电路
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申请号: US13327847申请日: 2011-12-16
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公开(公告)号: US20130159803A1公开(公告)日: 2013-06-20
- 发明人: Faraydon Pakbaz , Jack R. Smith , Sebastian T. Ventrone
- 申请人: Faraydon Pakbaz , Jack R. Smith , Sebastian T. Ventrone
- 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
- 主分类号: G01R31/28
- IPC分类号: G01R31/28
摘要:
Disclosed are embodiments of an integrated circuit that incorporates an asynchronous circuit with a built-in self-test (BIST) architecture using a handshaking protocol for at-speed testing to detect stuck-at faults. In the embodiments, a test pattern generator applies test patterns to an asynchronous circuit and an analyzer analyzes the output test data. The handshaking protocol is achieved through the use of a single pulse generator, which applies a single pulse to the test pattern generator to force switching of the test pattern request signal and, thereby to control application of the test patterns to the asynchronous circuit and subsequent switching of the test pattern acknowledge signal. Generation of this single pulse can in turn be forced by the switching of the test pattern acknowledge signal. Optionally, a time constraint can be added to the capture of the output test data to allow for detection of delay faults.
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