Patent ID: 7914325
Filing Date: 2011-03-29
Classification: G01R,H01R,H05K

Abstract:
1. A circuit board unit comprising: a printed circuit board; an electronic part on the printed circuit board; five signal electrode pads of a test for the electronic part, the five signal electrode pads on the printed circuit board, disposed at each apex of a square and at a center position of diagonal lines of the square, the five signal electrode pads connected electrically to the electronic part, the signal electrode pad disposed at the center of the square for clock signal of the test; two fixing holes on the printed circuit board, disposed at a center position of a first side of the square and a center position of a third side of the square opposite to the first side, and inserted fixing pins; and two grounding conducting pads on the printed circuit board, disposed at a center position of a second side of the square and a center position of a fourth side of the square opposite to the second side, and connected electrically to the electronic part.