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:
Mar. 06, 2012
Filed:
Jun. 12, 2009
Tsung-fu Tsai, Yunlin County, TW;
Chau-jie Zhan, Taipei County, TW;
Jing-yao Chang, Taipei County, TW;
Tao-chih Chang, Taoyuan County, TW;
Tsung-Fu Tsai, Yunlin County, TW;
Chau-Jie Zhan, Taipei County, TW;
Jing-Yao Chang, Taipei County, TW;
Tao-Chih Chang, Taoyuan County, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A package carrier including a substrate, at least an under bump metallurgic (UBM) layer and at least a conductive bump is provided. The substrate has a conductive structure and at least a pad connected with the conductive structure. A region of the pad connected with the conductive structure is a signal source region. The UBM layer is disposed on the pad and includes a first conductive pattern and a second conductive pattern. A side wall of the second conductive pattern is directly connected to a side wall of the first conductive pattern, and the second conductive pattern is disposed close to the signal source region. The conductivity of the second conductive pattern is smaller than the conductivity of the first conductive pattern. The conductive bump is disposed on the UBM layer.