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.

Date of Patent:
Dec. 23, 2014

Filed:

Jun. 15, 2012
Applicants:

Su Jin Lee, Busan, KR;

Hye IN Kim, Busan, KR;

Young Kwan Lee, Busan, KR;

Chang Kyung Woo, Busan, KR;

Je Kyoung Kim, Busan, KR;

Inventors:

Su Jin Lee, Busan, KR;

Hye In Kim, Busan, KR;

Young Kwan Lee, Busan, KR;

Chang Kyung Woo, Busan, KR;

Je Kyoung Kim, Busan, KR;

Assignee:

Samsung Electro-Mechanics Co., Ltd., Suwon Gyunggi-Do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 31/02 (2006.01); B23K 1/20 (2006.01); H05K 3/28 (2006.01); H05K 3/34 (2006.01); H05K 3/26 (2006.01);
U.S. Cl.
CPC ...
H05K 3/282 (2013.01); H05K 3/3484 (2013.01); H05K 2203/095 (2013.01); H05K 3/26 (2013.01);
Abstract

Disclosed herein are a method for surface-treating a printed circuit board and a printed circuit board including a surface treatment layer. The method includes: plasma-treating a surface of a printed circuit board; treating the plasma-treated substrate with an organic solderability preserve; performing heat treatment on the substrate treated with the organic solderability preserve; printing a solder paste on the substrate subjected to the heat treatment; reflowing the solder paste printed substrate to fix the solder paste; and deflux washing the resulting substrate. According to the present invention, the discoloration problem due to oxidation of copper can be solved by performing heat treatment under predetermined conditions after treatment with an organic solderability preserve. Therefore, the present invention can meet various multi-reflow processes, as compared with products of the related art.


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