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:
Oct. 06, 2009
Filed:
Oct. 02, 2003
Katsuhiko Sasahara, Tokyo, JP;
Katsuhiko Sasahara, Tokyo, JP;
Oki Semiconductor Co., Ltd, Tokyo, JP;
Abstract
A semiconductor device comprises one or two semiconductor chips, each including an input circuit having a wiring () for connecting an input pad () to an inner circuit, a first electrostatic protection element () electrically connected to the wiring, a second electrostatic protection element (), and a fuse () provided between the wiring () and second electrostatic protection element (). When the semiconductor device has one semiconductor chip, the wiring () and second electrostatic protection element () are connected to each other through the fuse (), and when the semiconductor device has said two semiconductor chips, the fuse () is disconnected so that the second electrostatic protection element () is electrically disconnected from the wiring ().