摘要:
A semiconductor device comprises a silicon substrate (1) formed with impurity diffusion layers (5, 9) in a region defined by insulating films (2a, 2b) for separating elements and an aluminum alloy film (11) for electrode interconnection having a contact hole portion 7 whose bottom is electrically in contact with the impurity diffusion layers (5, 9). A titanium silicide (TiSi.sub.2) film (4) is deposited on the surfaces of the impurity diffusion layers (5, 9) to reduce sheet resistivity thereof as well as reduce contact resistance between the same and the aluminum alloy film (11). A molybdenum silicide (MoSi.sub.2) film (8) is further formed thereon to prevent the TiSi.sub.2 film (4) from corrosion in removal of an oxide film through etching, while a titanium nitride (TiN) film (10) is formed thereon to prevent thermal reaction of the aluminum alloy film (11) and the MoSi.sub.2 film (8).
摘要:
A photomask material according to the present invention comprises a transparent substrate and a silicide film of a transition metal formed on the transparent substrate.