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:
Apr. 23, 2019

Filed:

Sep. 16, 2015
Applicant:

Unimicron Technology Corp., Taoyuan, TW;

Inventors:

Tzyy-Jang Tseng, Hsinchu, TW;

Shu-Sheng Chiang, Taipei, TW;

Tsung-Yuan Chen, Taoyuan County, TW;

Shih-Lian Cheng, Taoyuan County, TW;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K 3/30 (2006.01); H05K 3/00 (2006.01); H05K 1/18 (2006.01); H01L 23/538 (2006.01); H01L 23/00 (2006.01); H05K 3/06 (2006.01); H05K 3/42 (2006.01); H05K 3/46 (2006.01);
U.S. Cl.
CPC ...
H05K 3/007 (2013.01); H01L 23/5389 (2013.01); H01L 24/19 (2013.01); H05K 1/18 (2013.01); H05K 1/183 (2013.01); H05K 1/185 (2013.01); H05K 3/0011 (2013.01); H05K 3/06 (2013.01); H05K 3/30 (2013.01); H05K 3/423 (2013.01); H01L 2924/12042 (2013.01); H05K 3/465 (2013.01); H05K 2203/0723 (2013.01); H05K 2203/1469 (2013.01); Y10T 29/4913 (2015.01);
Abstract

A method of packaging an electrical device including following steps is provided. A circuit board including a substrate and a first conductive pattern is provided. The electrical device having an electrode is disposed on the circuit board. A dielectric layer is formed on the circuit board to cover the electrical device, the electrode and the first conductive pattern, wherein a first caving pattern is formed in the dielectric layer by the first conductive pattern. The dielectric layer is patterned to form a through hole and a second caving pattern connecting with the through hole and exposing the electrode. A conductive material is filled in the through hole and the second caving pattern to form a conductive via in the through hole and a second conductive pattern in the second caving pattern. The substrate is removed.


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