Invention Grant
- Patent Title: Rapid scan testing of integrated circuit chips
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Application No.: US16511792Application Date: 2019-07-15
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Publication No.: US10921372B2Publication Date: 2021-02-16
- Inventor: Rajesh Maruti Bhagwat , Nitin Satishchandra Kabra , Jay Shah
- Applicant: Seagate Technology LLC
- Applicant Address: US CA Cupertino
- Assignee: Seagate Technology LLC
- Current Assignee: Seagate Technology LLC
- Current Assignee Address: US CA Cupertino
- Agency: Westman, Champlin & Koehler, P.A.
- Main IPC: G01R31/28
- IPC: G01R31/28 ; G01R31/3177 ; G01R31/317 ; G01R31/3185

Abstract:
A method of testing an IC chip having a plurality of programmable blocks and at least one memory. The method includes configuring a first programmable block of the plurality of programmable blocks with scan test logic for carrying out a scan test on other ones of the plurality of programmable blocks. The method further includes generating scan patterns and expected results for the scan test outside the IC chip. The generated scan patterns and expected results are loaded into the memory. The scan patterns from the memory are injected into the other programmable blocks. An output response of the other programmable blocks to the scan patterns is obtained. The output response is compared with the expected results by the scan test logic within the first programmable block. A scan test result based on the comparison between the output response and the expected results is provided.
Public/Granted literature
- US20190339326A1 RAPID SCAN TESTING OF INTEGRATED CIRCUIT CHIPS Public/Granted day:2019-11-07
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