Patent ID: 8692290
Filing Date: 2014-04-08
Classification: G06F,H01L,H02H

Abstract:
1. A device structure formed using a device region of semiconductor material, the device structure comprising: a silicon controlled rectifier including a first p-n junction and a second p-n junction each in the device region; a first layer on a top surface of the device region, the first layer having a first section laterally positioned on the top surface of the device region in vertical alignment with the first p-n junction, and the first section of the first layer having a first edge; and a second layer on the top surface of the device region, the second layer having a section laterally positioned on the top surface of the device region in vertical alignment with the second p-n junction, and the section of the second layer having a first edge that is coextensive with the first edge of the first section of the first layer, wherein the first layer is comprised of a first material and the second layer is comprised of a second material with a higher electrical resistivity than the first material.