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:
Oct. 11, 2011
Filed:
Apr. 23, 2009
Chih-chung Yang, Kaohsiung, TW;
Wen-fon Wu, Kaohsiung, TW;
Mei-ling Lin, Kaohsiung, TW;
Wen-cheng Wu, Kaohsiung, TW;
Tsai-hu Chen, Kaohsiung, TW;
Wen-hsing Kong, Kaohsiung, TW;
Chih-Chung Yang, Kaohsiung, TW;
Wen-Fon Wu, Kaohsiung, TW;
Mei-Ling Lin, Kaohsiung, TW;
Wen-Cheng Wu, Kaohsiung, TW;
Tsai-Hu Chen, Kaohsiung, TW;
Wen-Hsing Kong, Kaohsiung, TW;
Yageo Corporation, Kaohsiung, TW;
Abstract
The present invention relates to a chip resistor and method for making the same. The chip resistor includes a substrate, a pair of bottom electrodes, a resistive film, a pair of main upper electrodes, a first protective coat, a pair of barrier layers, a second protective coat, a pair of side electrodes and at least one plated layer. The first protective coat is disposed over the resistive film, and covers part of the main upper electrodes. The barrier layers are disposed on the main upper electrodes, and cover part of the first protective coat. The second protective coat is disposed on the first protective coat, and covers part of the barrier layers. The plated layers cover the barrier layers, the bottom electrodes and the side electrodes. As a result, the chip resistor features high corrosion resistance.