Patent ID: 6544849
Filing Date: 2003-04-08
Classification: H01L

Abstract:
A method of fabricating the semiconductor device for preventing a polysilicon line from being damaged during removal of a photoresist layer, comprising at least the following steps:providing a substrate, the substrate comprises at least a core device region and a electrostatic discharge device region; forming a plurality of polysilicon lines on the core device region and the electrostatic discharge device region of the substrate; forming a plurality of offset spacers on sidewalls of the polysilicon lines; forming a first photoresist layer over the substrate, after the step of forming a plurality of the offset spacers, for covering the core device region, so that the electrostatic discharge protection device region is exposed; performing a punch-through ion implantation on the electrostatic discharge protection device region, with the first photoresist layer serving as a mask; removing the first photoresist layer; forming a plurality of lightly doped source/drain regions in the core device region; forming a plurality of spacers on an edge of the offset spacers; and forming a plurality of source/drain regions in the core device region and the electrostatic discharge protection device region.