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.:

US 6909297 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 21, 2005

Filed:

Jan. 12, 2004
Applicants:

Joon-su Ji, Suwon, KR;

In-seok Hwang, Hwaseong-gun, KR;

Doo-seon Lee, Hwaseong-gun, KR;

Byoung-joo Kim, Hwaseong-gun, KR;

Young-kyo RO, Mungyeong, KR;

Ho-yeol Lee, Seoul, KR;

Inventors:

Joon-Su Ji, Suwon, KR;

In-Seok Hwang, Hwaseong-gun, KR;

Doo-Seon Lee, Hwaseong-gun, KR;

Byoung-Joo Kim, Hwaseong-gun, KR;

Young-Kyo Ro, Mungyeong, KR;

Ho-Yeol Lee, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R031/02 ;
U.S. Cl.
CPC ...
Abstract

A probe card is provided which includes a plurality of stacked signal printed circuit boards for transmitting signals, and a plurality of ground printed circuit boards respectively interposed between the signal printed circuit boards. To reduce ground noise, each of the ground printed circuit boards includes a plurality of conductive ground regions which are insulated from each other.


Find Patent Forward Citations

Ji, Joon-Su. (2005). Probe card (U.S. Patent No. 6909297). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6909297

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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