Invention Grant
- Patent Title: Semiconductor device
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Application No.: US15918431Application Date: 2018-03-12
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Publication No.: US10578671B2Publication Date: 2020-03-03
- Inventor: Biao Shen
- Applicant: ABLIC Inc.
- Applicant Address: JP Chiba
- Assignee: ABLIC INC.
- Current Assignee: ABLIC INC.
- Current Assignee Address: JP Chiba
- Agency: Brinks Gilson & Lione
- Priority: JP2017-048803 20170314
- Main IPC: G01R31/316
- IPC: G01R31/316 ; G01R31/317 ; G01R31/3183

Abstract:
To provide a semiconductor device capable of easily testing a built-in self-test control circuit itself, the semiconductor device has: a test pattern generator; an output response analyzer configured to compare an expected value to a test result of a circuit; a plurality of test control circuits each configured to control the test pattern generator and the output response analyzer; and a circuit under test. The semiconductor device has: a first test mode in which a first test control circuit controls the test pattern generator and the output response analyzer to cause the test pattern, to thereby perform a test; and a second test mode in which the test control circuit other than the first test control circuit controls the test pattern generator and the output response analyzer to cause the test pattern, to thereby perform a test.
Public/Granted literature
- US20180267100A1 SEMICONDUCTOR DEVICE Public/Granted day:2018-09-20
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