Patent ID: 7868469
Filing Date: 2011-01-11
Classification: G01R,H01L,H05K,Y10T

Abstract:
1. An adapter board, comprising: a package substrate, including a board body having a first surface and a second surface and also having a wiring formed in the interior thereof, a first land pad disposed on said first surface and a second land pad disposed on said second surface; an insulating layer formed over said first surface of said package substrate; a through hole formed in a position corresponding to said first land pad of said insulating layer; a conductive member formed in said through hole; a third land pad covering said through hole and having an exposed bump side without being covered with the insulating layer; and an external coupling terminal formed in said second land pad, wherein said first land pad is electrically coupled to said second land pad through said wiring, and said third land pad is electrically coupled to said first land pad through said conductive member and the adapter board further includes a second testing-dedicated pad for applying electrical signal in said second surface, wherein said first land pad contains a first testing-dedicated pad, wherein said first testing-dedicated pad is electrically coupled to said second testing-dedicated pad through said wiring, and wherein an external coupling terminal is formed in said second testing-dedicated pad.