Invention Grant
- Patent Title: Method and system for LBIST testing of an electronic circuit
- Patent Title (中): 电子电路LBIST测试方法和系统
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Application No.: US12123540Application Date: 2008-05-20
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Publication No.: US08086925B2Publication Date: 2011-12-27
- Inventor: Benjamin Robert Gass , Abel Alaniz , Asher Shlomo Lazarus , Timothy M. Skergan
- Applicant: Benjamin Robert Gass , Abel Alaniz , Asher Shlomo Lazarus , Timothy M. Skergan
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: The Caldwell Firm, LLC
- Agent Patrick E. Caldwell, Esq.
- Main IPC: G01R31/28
- IPC: G01R31/28

Abstract:
A method for testing an electronic circuit comprises selecting a first log interval, a first log start pattern, a first log end pattern, and a first subset range of LBIST patterns from a plurality of LBIST patterns arranged in an order, wherein each LBIST pattern of the subset range of LBIST patterns causes an associated output of an electronic circuit. The method tests an electronic circuit in a first test by applying to the electronic circuit the first subset range of LBIST patterns sequentially in the order, thereby generating a first plurality of associated outputs. The method stores a first subset of associated outputs based on the first log interval, the first log start pattern, and the first log end pattern. The method compares the subset of associated outputs with known outputs to identify a first output mismatch.
Public/Granted literature
- US20090292963A1 Method and System for Testing an Electronic Circuit Public/Granted day:2009-11-26
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