Patent ID: 9564429
Date: 2017-02-07
CPC Classifications: G01J,H01L

Claim:
1. An integrated sensor, comprising: a sensing structure; a first bipolar junction transistor having a base that is electrically coupled with the sensing structure, the first bipolar junction transistor being configured to generate an output signal indicative of a change in stored charge in the sensing structure resulting from a presence of an environmental property; and a second bipolar junction transistor, the second bipolar junction transistor being configured to amplify the output signal of the first bipolar junction transistor; wherein the first and second bipolar junction transistors and the sensing structure are monolithically formed on a common substrate; wherein each of said first and second bipolar junction transistors comprises an inverted lateral bipolar junction transistor having an extrinsic base region formed underneath an intrinsic base thereof, the extrinsic base region having a higher doping concentration than the substrate.