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. 16, 2013
Filed:
Jan. 29, 2010
Shinya Tashiro, Kanagawa, JP;
Kazutaka Taniguchi, Kanagawa, JP;
Shinya Tashiro, Kanagawa, JP;
Kazutaka Taniguchi, Kanagawa, JP;
Renesas Electronics Corporation, Kawasaki-shi, Kanagawa, JP;
Abstract
A semiconductor device includes an internal power-supply circuit which produces an internal potential, an external terminal which outputs the internal potential and inputs and outputs a signal with an outside, and a test mode signal terminal which transfers a test mode signal. The semiconductor device further includes a first CMOS transfer circuit and a second CMOS transfer circuit which are provided between the internal power-supply circuit and the external terminal, and which are controlled by the test mode signal, a clamp element which is connected between the first and second CMOS transfer circuits and suppresses a potential variation, and a delay element provided between the clamp element and the first CMOS transfer circuit.