Patent ID: 7985643
Filing Date: 2011-07-26
Classification: H01L

Abstract:
1. A structure formation method, comprising: providing a structure including: forming a protection umbrella region from the hard cap region such that the gate region is completely in a shadow of the protection umbrella region, wherein the shadow of the protection umbrella region comprises a space shielded by the protection umbrella region from an imaginary light point source (i) directly above the protection umbrella region in the reference direction and (ii) infinitely far from the protection umbrella region; blanket depositing an inter-level dielectric (ILD) layer on the structure after said forming the protection umbrella region is performed; creating a contact hole in the ILD layer directly above the second S/D region and aligned with an edge of the protection umbrella region, wherein the contact hole is physically isolated from the gate region by the ILD layer; and filling the contact hole with an electrically conducting material; wherein said providing the structure comprises: