Patent ID: 9575124
Date: 2017-02-21
CPC Classifications: G01R,H03K

Claim:
1. A method for communicating high voltages through a semiconductor device, comprising: receiving test commands from a computer device; identifying, for the test commands, an input pad and an output pad of a first chip of the semiconductor device, each of the input pad and the output pad being coupled to a respective high voltage switch of the first chip; setting the identified input pad and output pad by turning on each of the respective high voltage switches of the first chip, the turning on being executed by two control signals sent to both high voltage switches of the first chip, the two high voltage switches being coupled as a result, wherein a high voltage signal is communicable from the input pad to the output pad via the coupled high voltage switches; identifying, for the test commands, at least one input pad of a second chip of the semiconductor device, the at least one input pad of the second chip being coupled to a high voltage switch of the second chip, the identifying of the at least one input pad of the second chip being set by turning on the high voltage switch of the second chip; supplying a high voltage signal to the input pad of the first chip to be communicated to the output pad of the first chip; and communicating the high voltage signal from the output pad of the first chip to the at least one input pad of the second chip, wherein the high voltage is higher than normal operation voltages of the semiconductor device and the method is executed by a processor of the computer device.