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:
Mar. 03, 2009
Filed:
Feb. 28, 2006
Applicants:
Eisaku Yamashita, Tokyo, JP;
Shigeru Takada, Tokyo, JP;
Inventors:
Eisaku Yamashita, Tokyo, JP;
Shigeru Takada, Tokyo, JP;
Assignee:
Renesas Technology Corp., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A burn-in input signal input to a burn-in circuit is delivered to an internal circuit through a selector. In response to a control signal from the burn-in circuit, the selector selects either the burn-in input signal or an input signal for operating the internal circuit. In the burn-in test process, a portion of an output signal is monitored to determine the degree of degradation of the internal circuit.