The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 28, 2020
Filed:
Feb. 22, 2018
Applicant:
Piecemakers Technology, Inc., Hsinchu, TW;
Inventor:
Der-Min Yuan, New Taipei, TW;
Assignee:
Piecemakers Technology, Inc., Hsinchu County, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/50 (2020.01); G01R 31/28 (2006.01);
U.S. Cl.
CPC ...
G01R 31/2853 (2013.01); G01R 31/2882 (2013.01); G01R 31/50 (2020.01);
Abstract
A method for testing a semiconductor die is provided. The method includes the following steps: charging a die pad of the semiconductor die to a precharge level; stopping charging the die pad to detect a period of time required for a voltage level of the die pad to change from the precharge level to a reference level, and accordingly generating a detection result; and determining a leakage current of the die pad according to the detection result.