Patent ID: 9263410
Filing Date: 2016-02-16
CPC Classification: H01L,H05K

Claim Text:
1. A chip detecting system, comprising: a ball grid array (BGA) chip comprising at least two monitoring signal output pins located at a corner of the BGA chip, wherein the at least two monitoring signal output pins are electrically connected to each other; and a circuit board comprising at least two solder pads electrically connected to each other, wherein the at least two monitoring signal output pins are electrically connected to the at least two solder pads using solder balls separately, wherein the BGA chip further comprises monitoring signal input pins, wherein the monitoring signal input pins, the monitoring signal output pins, and the solder pads on the circuit board jointly form a monitoring signal input and output closed loop, and wherein whether a crack exists between the at least two monitoring signal output pins and the circuit board is determined according to open or normal of a monitoring signal.