Patent ID: 8716797

Claim:
A finFET formed by a method comprising steps of forming at least one fin of semiconductor material on a substrate, forming a gate stack across said fin, conformally depositing sidewall spacer material on surfaces of said fin, gate stack and said substrate, etching said sidewall spacer material to form sidewall spacers, performing angled ion impurity implants into said sidewall spacer material on both sides of said fin in a direction substantially parallel to sides of said gate stack, etching said sidewall spacer material to remove said sidewall spacer material from said fin selectively to said sidewall spacer material on said gate stack, said etching being subsequent to said angled ion impurity implant and sufficient to obtain a substantially uniform shape of spacer material remaining as sidewall spacers on said gate stack and to remove substantially all of said sidewall spacer material from portions of said fin beyond said sidewall spacers on said gate stack except at a base of said fin, said base of said fin being a portion of said fin most proximate to said substrate, and performing epitaxial growth on said sides of ends of said fin.