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:
Feb. 05, 2008
Filed:
Feb. 09, 2005
Nobuo Osaki, Kyoto, JP;
Masanori Tanimura, Kyoto, JP;
Nobuo Osaki, Kyoto, JP;
Masanori Tanimura, Kyoto, JP;
Rohm Co., Ltd., Kyoto, JP;
Abstract
A method of making a thin-film chip resistor includes: a step of making a material plate A formed with lengthwise breaking grooves Aand crosswise breaking grooves Aalong which the plate is to be divided into individual chip substrateseach to become a chip resistor; and a step of forming a film of resistive element material B by a thin-film process such as spattering, on a surface of the material plate A. The step of thin-film process, in which the resistive element material B is formed, is performed with a masking sheet E placed on the surface of the material plate A, covering only regions including the lengthwise breaking grooves Aand the crosswise breaking grooves A