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:
Dec. 21, 2010
Filed:
Mar. 26, 2008
Kimihiko Yamashita, Kobe, JP;
Kimihiko Yamashita, Kobe, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A semiconductor device is provided wherein a foundation insulating film is formed over a semiconductor substrate, a metal resistance element is formed on the foundation insulating film, and contacts are formed at both ends of the metal resistance element in a longitudinal direction of the metal resistance element and connected to the metal resistance element. The foundation insulating film comprises a single upwardly concave curved surface constituting not less than about 40 percent of an upper surface of the metal resistance element between the contacts in the longitudinal direction thereof. The curved surface of the foundation insulating film causes the metal resistance element to comprise a single upwardly concave curved surface constituting not less than about 40 percent of upper and lower surfaces of the metal resistance element between the contacts in the longitudinal direction thereof.