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:
Jun. 14, 2011
Filed:
Mar. 26, 2008
Yukinori Uchino, Yokohama, JP;
Yukinori Uchino, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A semiconductor device of an aspect of the present invention comprises a package substrate, one first power supply terminal provided on the package substrate, one second power supply terminal provided on the package substrate, a semiconductor chip disposed on the package substrate, first and second internal power supply circuits provided in the semiconductor chip, one first ESD protection element which is provided in the first internal power supply circuit and which is connected to the first power supply terminal, and a plurality of second ESD protection elements, the second ESD protection elements being provided in the second internal power supply circuit, the size of one second ESD protection element being smaller than that of the first ESD protection element, the second ESD protection elements being connected to the common second power supply terminal.