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:
Jun. 21, 2005
Filed:
Jan. 12, 2004
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;
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;
Samsung Electronics Co., Ltd., Suwon-si, KR;
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.