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:
Jan. 18, 2005
Filed:
Jul. 27, 2001
Mika Shiiki, Chiba, JP;
Hiroaki Takasu, Chiba, JP;
Mika Shiiki, Chiba, JP;
Hiroaki Takasu, Chiba, JP;
Seiko Instruments Inc., Chiba, JP;
Abstract
A semiconductor device has thin film resistors connected in series to form a bleeder resistance circuit. Each of the thin film resistors is made of a polysilicon film doped with B or BFP-type impurities and has two end portions each having a high impurity concentration region. A first insulating film overlies the thin film resistors. First conductors are connected to the ends of the thin film resistors for connecting the thin film resistors in series. The semiconductor device has second conductors each connected to a respective one of the first conductors and overlying a respective one of the thin film resistors through the first insulating film.