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:
Mar. 16, 2010
Filed:
Apr. 24, 2007
Shigeki Yoshida, Kanagawa, JP;
Fumio Ushida, Kanagawa, JP;
Nobuhisa Naori, Kanagawa, JP;
Yasutaka Ozaki, Kanagawa, JP;
Shigeki Yoshida, Kanagawa, JP;
Fumio Ushida, Kanagawa, JP;
Nobuhisa Naori, Kanagawa, JP;
Yasutaka Ozaki, Kanagawa, JP;
Fujitsu Microelectronics Limited, Yokohama, JP;
Abstract
A plurality of device patterns constituting part of an electronic circuit are formed over the surface of a substrate. A symbol pattern to be used for an identification sign is formed in the same layer as the device patterns. A width of the device pattern is within a pattern width range on a design rule. The symbol pattern is formed by a plurality of isolated element patterns. The element pattern is either a linear pattern or a dot pattern. A width of the element pattern is equal to or larger than 0.8 time a lower limit value of the pattern width range and equal to or smaller than 1.2 times an upper limit value of the pattern width range.