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:
Jun. 07, 2022
Filed:
Oct. 21, 2019
Applicant:
SK Hynix Inc., Icheon-si, KR;
Inventors:
Assignee:
SK hynix Inc., Icheon-si, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H 9/00 (2006.01); H02H 9/04 (2006.01); H01L 27/02 (2006.01); H01L 23/60 (2006.01); H01G 4/40 (2006.01);
U.S. Cl.
CPC ...
H02H 9/046 (2013.01); H01G 4/40 (2013.01); H01L 23/60 (2013.01); H01L 27/0255 (2013.01); H01L 27/0266 (2013.01); H01L 27/0288 (2013.01); H01L 27/0292 (2013.01);
Abstract
A test device is disclosed. The test device includes an input/output (I/O) circuit configured to allow static electricity flowing between an input/output (I/O) pad and an internal circuit to be discharged to a power-supply line, a ground line, or a substrate line, a capacitor circuit configured to perform modeling of parasitic capacitance extracted from a package design, and a discharge circuit configured to allow capacitance stored in the capacitor circuit to be discharged to the substrate line.