Patent ID: 11959938
Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 8:
9. An apparatus for testing power supply noise, comprising the package substrate according to claim 1, the chip to be tested, and a test board, wherein
the test board is disposed with a first test point corresponding to a first power supply type;
the chip to be tested at least comprises power supply pins corresponding to the first power supply type, and the power supply pins are divided into a first test pin and a first power supply pin set excluding the first test pin; and
the package substrate at least comprises power supply pads corresponding to the first power supply type, and the power supply pads are divided into a first test pad and a first power supply pad set excluding the first test pad,
wherein each of power supply pins in the first power supply pin set is electrically connected to a respective one of power supply pads in the first power supply pad set, the first test pin is electrically connected to the first test pad, and the first test pad is further electrically connected to the first test point, so that the first test point is capable of performing, through the first test pad and the first test pin, noise testing of at least one internal power supply corresponding to the first power supply type in the chip to be tested.