Patent ID: 8859380
Filing Date: 2014-10-14
Classification: H01L

Abstract:
1. A method of forming an integrated circuit, the method comprising: forming a plurality of gate structures longitudinally arranged along a first direction over a substrate, the gate structures of the plurality of gate structures having a first side and a second side opposite the first side, the first side and the second side being parallel to the first direction; and discretely performing a plurality of angle ion implantations to the substrate, a first angle ion implantation of the plurality of angle ion implantations being performed only on the first side of at least one gate structure of the plurality of gate structures, and a second angle ion implantation of the plurality of angle ion implantations being performed only on the second side of the at least one gate structure of the plurality of gate structures, wherein each angle ion implantation of the plurality of angle ion implantations has a respective implantation angle with respect to a second direction, the second direction is substantially parallel with a surface of the substrate and substantially orthogonal to the first direction, and each of the implantation angles is substantially larger than 0° and less than 90°.