Patent ID: 7109534
Filing Date: 2006-09-19
Classification: H01L

Abstract:
1. An amplification circuit, comprising: an insulating substrate; a first metal film disposed on the insulating substrate, the first metal film having a first surface and a second surface; a second metal film disposed on the insulating substrate; a third metal film disposed on the insulating substrate; a first layer which is arranged on the first metal film and which is made of an N-type semiconductor which is electrically coupled to the first metal film, the first layer having a third surface and a fourth surface; a second layer which is disposed on the first layer and which is made of a P-type semiconductor, the second layer having a fifth surface and a sixth surface; and a third layer which is disposed on the second layer and which is made of an N-type semiconductor, the third layer having a seventh surface and a eighth surface; the first surface being in contact with the insulating substrate, the third surface being in contact with the second surface, the fifth surface being in contact with the fourth surface, the seventh surface being in contact with the sixth surface, the second metal film being in contact with the sixth surface, the third metal film being in contact with the eighth surface.