Patent ID: 6469530
Filing Date: 2002-10-22
Classification: G01R,H05K

Abstract:
A ball grid technology circuit assembly, comprising:a ball grid array circuit package containing integrated circuits and having on a mounting face of the ball grid array circuit package a ball grid array of ball pads forming electrical connections to the integrated circuits in the ball grid array circuit package, a printed circuit board for mounting the ball grid array circuit package and providing electrical connections to the ball pads of the ball grid array circuit package, the ball grid array circuit package being mounted to the printed circuit board with the mounting face of the ball grid array circuit package mating with an upper face of the printed circuit board, and the printed circuit board including a via array of vias wherein each via extends from the upper face of the printed circuit board to a lower face of the printed circuit board, each via corresponds to and is co-located with a ball pad of the ball grid array, and each via contacts the corresponding ball pad of the ball grid array to provide a conductive path between the corresponding ball pad and the lower end of the via at the lower face of the printed circuit board to provide electrical access to the corresponding ball pad of the ball grid array of the a ball grid array circuit package, the ball grid technology circuit assembly providing an increased number of test connections to the integrated circuits of the ball grid array circuit package.