Invention Grant
- Patent Title: Methods and systems to test semiconductor devices based on dynamically updated boundary values
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Application No.: US16884684Application Date: 2020-05-27
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Publication No.: US11754616B2Publication Date: 2023-09-12
- Inventor: Chin-Hao Chang , Meng-Hsiu Wu , Chiao-Yi Huang , Manoj M. Mhala , Calvin Yi-Ping Chao
- Applicant: Taiwan Semiconductor Manufacturing Company Limited
- Applicant Address: TW Hsinchu
- Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LIMITED
- Current Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY LIMITED
- Current Assignee Address: TW Hsinchu
- Agency: FOLEY & LARDNER LLP
- Main IPC: G01R31/26
- IPC: G01R31/26 ; G11C16/26 ; G01R31/319

Abstract:
A method for testing semiconductor devices is disclosed, which includes: obtaining a result measured on a semiconductor device in one of a set of tests; comparing the result with a maximum value determined among respective results that were previously measured in one or more of the set of tests and a minimum value determined among respective results that were previously measured in one or more of the set of tests; determining, based on the comparison between the first result and the maximum and minimum values, whether to update the maximum and minimum values to calculate a delta value; comparing the delta value with a noise threshold value; determining based on the comparison between the delta value and the noise threshold value, whether to update a value of a timer; determining that the value of the timer satisfies a timer threshold; and determining that the semiconductor device incurs noise.
Public/Granted literature
- US20210373068A1 SYSTEMS AND METHOD TO TEST SEMICONDUCTOR DEVICES Public/Granted day:2021-12-02
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