Patent ID: 8779419
Filing Date: 2014-07-15
Classification: H01L

Abstract:
1. A semiconductor device which uses a crystalline oxide as a semiconductor, wherein the crystalline oxide contains In and two or more metals other than In, and the crystalline oxide has an electron carrier concentration of less than 1×10 wherein the number (=[In]) of the atoms of In and the sum (=[X]) of the atoms of the two or more metals other than In contained in the crystalline oxide satisfy the relation 0.0001≦[X]/([X]+[In])<0.1, and the two or more metals other than In are selected from: (a) Zn and Mg, (b) Zn and Cu, (c) Zn and Co, (d) Zn and Ni, (e) Zn and Ca, and (f) Zn and Sr.