Patent ID: 6171437
Filing Date: 2001-01-09
Classification: H01L

Abstract:
A semiconductor manufacturing device for performing wet etching on only one main surface of a semiconductor substrate, the semiconductor manufacturing device comprising:a substrate holder for holding a semiconductor substrate to form an open space and a sealed space so that a first main surface of the semiconductor substrate is exposed to the open space and a second main surface of the semiconductor substrate opposite to the first main surface is exposed to the sealed space, and for maintaining the semiconductor substrate immersed in an etching solution so that the first main surface of the semiconductor substrate is exposed to the etching solution and subjected to wet etching and the etching solution does not flow into the sealed space; andpressure control means for controlling a pressure in the sealed space to a pressure substantially equal to a pressure applied to the first main surface of the semiconductor substrate when the semiconductor substrate is immersed in the etching solution.