Patent ID: 6483138
Filing Date: 2002-11-19
Classification: H01L

Abstract:
A semiconductor apparatus comprising:a semiconductor substrate; a gate insulating film disposed over a surface of said semiconductor substrate; first and second gate electrodes disposed over said gate insulating film and respectively having first and second insulating films laminated thereon; first side insulating films disposed adjacent to an inner and an opposed outer side wall of said first gate electrode; second side insulating films disposed adjacent to an inner and an opposed outer side wall of said second gate electrode; a wiring layer including a portion disposed between the inner side wall of said first gate electrode and the inner side wall of said second gate electrode; a third insulating film disposed over a portion of said first insulating film and a portion of said first side insulating films; a fourth insulating film disposed over a portion of said second insulating film and a portion of said second side insulating films; third side insulating films disposed to be separated from a portion of said first side insulating films by said third insulating film; fourth side insulating films disposed to be separated from a portion of said second side insulating films by said fourth insulating film; a first diffusion layer disposed adjacent to the surface of the semiconductor substrate and configured to provide first diffusion layer portions including opposed first end portions, wherein first end portions from different first diffusion layer portions are configured to be adjacent to two opposed sides of a region of the semiconductor substrate extending below said first and second gate electrodes; and a second diffusion layer configured to provide second diffusion layer portions that overlap the first diffusion layer portions near the surface of the semiconductor substrate except at the opposed first end portions thereof, wherein the second diffusion layer portions include a bottom portion extending further from the surface of said semiconductor substrate than a bottom portion of said first diffusion layer portions.