Patent ID: 8138030

Claim:
A method for forming fin field effect transistor (finFET) devices comprising: forming a fin structure in a substrate; forming a gate stack structure perpendicular to the fin structure; and masking a first portion of the gate stack structure and a first portion of the fin structure; implanting a first type of ions at a first oblique angle to form a first source and drain region in the substrate, wherein the first oblique angle is between 1 and 89 degrees relative to the first source region; masking the first source and drain region; removing a portion of the masking from the first portion of the gate stack structure and the first portion of the fin structure; implanting the first type of ions at a second oblique angle to form a second source and drain region in the substrate, wherein the second oblique angle is between 91 and 179 degrees relative to the first source region; masking the second source and drain region; removing another portion of the masking from the first portion of the gate stack structure and the first portion of the fin structure; and implanting a second type of ions at the first oblique angle to form a third source and drain region in the substrate.