Patent ID: 6593188
Filing Date: 2003-07-15
Classification: H01L

Abstract:
A method of fabricating a semiconductor device, comprising the steps of:forming a first layer on a substrate; forming a second layer on the first layer; forming a capping layer on the second layer; forming a first opening exposing a portion of the first layer, wherein the first opening penetrates the capping layer and the second layer; forming a second opening exposing a portion of the second layer, wherein the second opening penetrates the capping layer; forming a reactive layer on the exposed portion of the first layer, the exposed portion of the second layer and on the capping layer; and reacting the reactive layer with the exposed portion of the first layer and the exposed portion of the second layer, thereby forming a first top layer of a first crystalline structure in the first opening, forming a second top layer of the first crystalline structure in the second opening and leaving a remnant unreacted portion of the reactive layer on the capping layer.