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.

Date of Patent:
Oct. 18, 2022

Filed:

May. 28, 2021
Applicant:

SK Hynix Inc., Icheon-si, KR;

Inventor:

Sun Myung Choi, Seoul, KR;

Assignee:

SK hynix Inc., Icheon-si, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/66 (2006.01); H01L 23/48 (2006.01); G11C 29/02 (2006.01); G01R 31/3185 (2006.01); G11C 5/04 (2006.01); G11C 5/02 (2006.01);
U.S. Cl.
CPC ...
H01L 22/34 (2013.01); H01L 22/32 (2013.01); H01L 23/481 (2013.01); G01R 31/318513 (2013.01); G11C 5/02 (2013.01); G11C 5/04 (2013.01); G11C 29/025 (2013.01); H01L 2224/16 (2013.01);
Abstract

A semiconductor chip includes a first semiconductor device and a second semiconductor device stacked over the first semiconductor device. The second semiconductor device is electrically connected to the first semiconductor device via a plurality of through electrodes. In a test mode, the first semiconductor device is configured to drive a first pattern of logic levels and a second pattern of logic levels through the plurality of through electrodes, configured to compare logic levels of a plurality of test data generated by the first and second patterns from the first and second semiconductor devices to generate a detection signal indicating that the plurality of through electrodes operated normally or abnormally.


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Quick Actions:

Choi, Sun. (2022). Semiconductor chips including through electrodes and methods of testing the through electrodes (U.S. Patent No. 11476169). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11476169

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