Patent ID: 6555868
Filing Date: 2003-04-29
Classification: H01L

Abstract:
A semiconductor device comprising:a semiconductor substrate; first, second and third active regions aligned on a main surface of said semiconductor substrate; and first and second transistors provided on said semiconductor substrate, said first transistor including a first gate electrode containing polysilicon and provided between said first and second active regions, a first gate insulation film disposed between said semiconductor substrate and said first gate electrode and larger in thickness at an end thereof closer to said second active region than that closer to said first active region, and a first sidewall spacer provided on said first active region in contact with a sidewall of said first gate electrode, said second transistor including a second gate electrode containing polysilicon and provided between said second and third active regions parallel to said first gate electrode, a second gate insulation film disposed between said semiconductor substrate and said second gate electrode and larger in thickness at an end thereof closer to said second active regions than that closer to said third active region, and a second sidewall spacer provided on said third active region in contact with a sidewall of said second gate electrode, said second active region existing between said first and second gate electrodes.