Patent Number: 7,355,385

Title: Voltage injector and detector using pixel array for printed circuit board testing

Abstract: One embodiment includes an injector pixel array having injector pixels each coupled to the bottom surface of a conductive material having a directional electrical conductivity only in a direction corresponding to a path between the bottom surface and top surface of the conductive material. Each injector pixel includes a semiconductor based switch coupled to a charge or voltage driver to inject a charge or voltage into each injector pixel. Embodiments, also include a detector pixel array having detector pixels each coupled to the bottom surface of the directionally conductive material. Each detector pixel includes a semiconductor based switch coupled to a charge or voltage storage capacitor to detect a charge or voltage at each detector pixel.

Inventors: Zentai; George (Mountain View, CA)

Assignee: Varian Medical Systems Technologies, Inc.

International Classification: G01R 31/26 (20060101); G01R 31/02 (20060101)

Expiration Date: 2020-04-08 0:00:00