Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – Of individual circuit component or element
Reexamination Certificate
2005-06-21
2005-06-21
Tang, Minh N. (Department: 2829)
Electricity: measuring and testing
Fault detecting in electric circuits and of electric components
Of individual circuit component or element
C324S765010, C324S1540PB
Reexamination Certificate
active
06909297
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.
REFERENCES:
patent: 5162728 (1992-11-01), Huppenthal
patent: 6215320 (2001-04-01), Parrish
patent: 6292006 (2001-09-01), Fredrickson
patent: 6667631 (2003-12-01), Ivanov
patent: 6720501 (2004-04-01), Henson
Hwang In-Seok
Ji Joon-Su
Kim Byoung-Joo
Lee Doo-Seon
Lee Ho-Yeol
Tang Minh N.
Volentine Francos & Whitt PLLC
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