Patent ID: 8669186
Filing Date: 2014-03-11
Classification: H01L

Abstract:
1. A method of forming an SRAM device, comprising: forming a hard mask layer above a semiconducting substrate; forming a patterned spacer mask layer above the hard mask layer, wherein forming said patterned spacer mask layer comprises: performing a first etching process on said hard mask layer through said patterned spacer mask layer to thereby define a patterned hard mask layer; performing a second etching process on said substrate through said patterned hard mask layer to thereby define a plurality of first fins in said substrate, a plurality of second fins in said substrate and a plurality of third fins in said substrate, wherein said first fins have a first width that corresponds approximately to a width of said first spacers, said second fins have a second width that corresponds approximately to a width of said second spacers, and said third fins have a third width that corresponds approximately to a width of said third spacers.