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:
Dec. 16, 2008
Filed:
Oct. 26, 2006
Naoki Ito, Nukata-gun, JP;
Hideaki Ishihara, Okazaki, JP;
Yoshinori Teshima, Toyota, JP;
Chikara Kobayashi, Nukata-gun, JP;
Naoki Ito, Nukata-gun, JP;
Hideaki Ishihara, Okazaki, JP;
Yoshinori Teshima, Toyota, JP;
Chikara Kobayashi, Nukata-gun, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
A semiconductor integrated circuit includes: a package; semiconductor chips in the package including a signal terminal; and a wiring connecting signal terminals. One semiconductor chip is a test object chip including a probe terminal and a test object terminal. The probe terminal connects to an external terminal for testing the test object terminal. The test object chip further includes: a common wiring for connecting the probe terminal and the test object terminal; a first switch for connecting/disconnecting the probe terminal and the common wiring; a second switch for connecting/disconnecting the test object terminal and the common wiring; and a test signal interrupting element for interrupting the test signal to be inputted into an input circuit of the probe terminal.