Electricity: conductors and insulators – Conduits – cables or conductors – Preformed panel circuit arrangement
Reexamination Certificate
2011-01-25
2011-01-25
Patel, Ishwarbhai B (Department: 2841)
Electricity: conductors and insulators
Conduits, cables or conductors
Preformed panel circuit arrangement
C029S846000
Reexamination Certificate
active
07875810
ABSTRACT:
An electronic component-inspection wiring board including a first laminate composed of plural first ceramic layers and having pads formed on a front surface to transmit inspection signals to an electronic component, wiring layers formed between the first ceramic layers , and via-conductors connecting pads to the wiring layers exposed on a rear surface of the first laminate; and a second laminate composed of second ceramic layers having plural via-conductors extending between front surface and rear surface of the second laminate, wherein lands connecting a via-conductor exposed on the rear surface of the first laminate and a via-conductor exposed on the front surface of the second laminate are disposed between the first laminate and the second laminate, and the diameter d1of the land is 2-5 times larger than the diameter d2of a via-conductor connected to the land.
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Nomura Toshihisa
Nozu Kazuya
NGK Spark Plug Co. Ltd.
Patel Ishwarbhai B
Sughrue & Mion, PLLC
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