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:
Aug. 29, 2006
Filed:
Nov. 28, 2002
Masato Doi, Kyoto, JP;
Masato Doi, Kyoto, JP;
Rohm Co., Ltd., Kyoto, JP;
Abstract
A chip resistor includes: an insulating chip substratehaving an upper surface formed with a resistive filmand a pair of left and right upper electrodesat two ends thereof; a cover coatcovering the resistive film; auxiliary upper electrodesformed on upper surfaces of the upper electrodesto overlap the cover coat; a left and a right side electrodesformed on a left and a right end surfacesof the insulating substrate; and metal plate layers formed on surfaces of the auxiliary upper electrodes and side electrodes. The cover coatis formed with an uppermost over coatcovering a region where the auxiliary upper electrodesoverlap the cover coat, whereby the upper electrodesand the auxiliary upper electrodesare protected from migration caused by sulfur gases.