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:
Feb. 08, 2005
Filed:
Jul. 17, 2003
Shih-jye Cheng, Hsinchu, CN;
An-hong Liu, Tainan, CN;
Yeong-her Wang, Tainan, TW;
Yuan-ping Tseng, Hsinchu, TW;
Yao-jung Lee, Tainan, CN;
Shih-Jye Cheng, Hsinchu, CN;
An-Hong Liu, Tainan, CN;
Yeong-Her Wang, Tainan, TW;
Yuan-Ping Tseng, Hsinchu, TW;
Yao-Jung Lee, Tainan, CN;
Chipmos Technologies (Bermuda) Ltd., Hamilton, BM;
Chipmos Technologies Inc., Hsinchu, TW;
Abstract
A probe card assembly is disclosed. The probe card assembly comprises a stiffener ring combining respectively with an upper printed circuit board and a lower printed circuit board. A plurality of coaxial transmitters are installed in the stiffener ring, and connect to the upper and lower printed circuit boards by cable connectors. The lower printed circuit board is assembled with a detachable probe head which comprises a silicon substrate with probing points and a probe head carrier. A downset is formed at the center of the probe head carrier. The standardized coaxial transmitters, printed circuit boards and probe heads are then assembled as a probe card assembly for testing all sorts of IC products.