Semiconductor device
US10578671B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 12, 2018 |
| Grant date | Mar 3, 2020 |
| Priority date | — |
| Expiry date | May 5, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/318385
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.