Patent ID: 8003195
Filing Date: 2011-08-23
Classification: H01L,Y10T

Abstract:
1. A manufacturing method for a display device, comprising: forming an active layer by performing an SPC (solid phase crystallization) process on a first substrate; forming a cushioning layer of amorphous silicon (a-Si) on the active layer under an atmosphere containing 90 to 97% by flow rate of hydrogen (H2) and 10 to 3% by flow rate of silane (SiH4); forming an N-type impurity layer on the cushioning layer; forming a metal layer to cover the N-type impurity layer; forming a source and drain by removing the metal film by a first etching method; and separating the N-type impurity layer and the cushioning layer by a second etching method, wherein the thickness of the cushioning layer is 10 to 300 Å, and wherein the cushioning layer, the N-type impurity layer and the metal layer are formed successively.