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:
Jan. 04, 2005
Filed:
Apr. 09, 2002
Mitsuyoshi Ohya, Osaka, JP;
George Nakane, Nara, JP;
Mitsuyoshi Ohya, Osaka, JP;
George Nakane, Nara, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A semiconductor device includes a plurality of semiconductor integrated circuits formed on a semiconductor wafer; an testing pad for inputting and outputting a signal to and from an internal circuit of the semiconductor integrated circuit; a switch for switching a state of a connection between the semiconductor integrated circuit and the testing pad; and a wiring pattern formed on a parting line around the semiconductor integrated circuit and connected to an input terminal of the switch. When the semiconductor integrated circuits are separated, cutting off of the wiring pattern causes the switch to be turned off, so that the internal circuit is prevented from being affected by the influence of the cutting plane.