Patent ID: 7579228

Claim:
A method for making a semiconductor device, comprising: providing a semiconductor structure comprising a first gate electrode disposed in a first region and a second gate electrode disposed in a second region; forming a first set of organic spacers adjacent to said first electrode through a process which includes (a) depositing a first layer comprising a first organic material having a first average thickness, and (b) etching the first layer with a first etch; depositing a first photo mask over the structure such that at least a portion of the first region is exposed and at least a portion of the second region is covered; subjecting the first region to a first implantation process; concurrently removing the first set of organic spacers and the first photo mask; forming a second set of organic spacers adjacent to said second electrode through a process which includes (a) depositing a second layer comprising a second organic material having a second average thickness, and (b) etching the second layer with a second etch; depositing a second photo mask over the structure such that at least a portion of the second region is exposed and at least a portion of the first region is covered; subjecting the second region to a second implantation process; and concurrently removing the second set of organic spacers and the second photo mask.