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. 09, 2013
Filed:
Jul. 10, 2012
Applicants:
Takayuki Sasaki, Tokyo, JP;
Yasuto Igarashi, Tokyo, JP;
Naozumi Morino, Tokyo, JP;
Inventors:
Assignee:
Renesas Electronics Corporation, Kawasaki-shi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 27/118 (2006.01);
U.S. Cl.
CPC ...
Abstract
A technique which reduces the influence of external noise such as crosstalk noise in a semiconductor device to prevent a circuit from malfunctioning. A true signal wire and a bar signal wire which are susceptible to noise and part of an input signal line to a level shifter circuit, and shield wires for shielding these signal wires are laid on an I/O cell. Such I/O cells are placed side by side to complete a true signal wire connection and a bar signal wire connection. These wires are arranged in a way to pass over a plurality of I/O cells and are parallel to each other or multilayered.