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:
Jul. 11, 2006
Filed:
Feb. 23, 2004
Morihisa Hirata, Kanagawa, JP;
Morihisa Hirata, Kanagawa, JP;
NEC Electronics Corporation, Kanagawa, JP;
Abstract
A semiconductor integrated device includes a plurality of power system circuit units, a first circuit unitto which electric power is supplied from first power supply wiring, and first ground wiringto which the first circuit unit is coupled. Moreover, the semiconductor integrated device includes a second circuit unitto which electric power is supplied from second power supply wiring, and second ground wiringcoupled to the second circuit unit. The first circuit unit includes a first interface circuit unit, and the second circuit unit includes a second interface circuit unitconfigured to perform inputting or outputting of a signal to and from the first interface circuit unit. The first ground wiring is coupled to the second ground wiring through a protection circuit, and the second interface circuit unit is placed in the vicinity of the first interface circuit unit.