Patent ID: 6083785
Filing Date: 2000-07-04
Classification: H01L,Y02E

Abstract:
A method of manufacturing a semiconductor device comprising:a semiconductor substrate having an active component formation region and a passive component formation region; a MIS transistor formed on said active component formation region; and a resistor formed on said passive component formation region,said method comprising:a first step of forming a resistor film of said resistor on said passive component formation region in said semiconductor substrate;a second step of forming an insulating film on said resistor film;a third step of depositing a conductor film covering said insulating film;a fourth step of patterning said conductor film to form a resistance determining conductor film covering a portion of the surface of said resistor film except for both ends, each of said ends including a contact formation region;a fifth step of forming a insulating film for forming sidewalls on said resistor film and said resistance determining conductor film;a sixth step of etching back said insulating film for forming sidewalls to form sidewalls on the side surfaces of said resistor film and said resistance determining conductor film, and to expose a portion of each surface of said resistor film except for a portion covered with any of said resistance determining conductor film and said sidewalls; anda seventh step of forming a low-resistance layer on said exposed surface of said resistor film.