Abstract:
In a manufacturing process of a bottom-gate transistor including an oxide semiconductor film, dehydration or dehydrogenation through heat treatment and oxygen doping treatment are performed. A transistor including an oxide semiconductor film subjected to dehydration or dehydrogenation through heat treatment and oxygen doping treatment can be a highly reliable transistor having stable electric characteristics in which the amount of change in threshold voltage of the transistor between before and after the bias-temperature stress (BT) test can be reduced.
Abstract:
A method is provided for fabricating a damascene interconnection The method begins by forming on a substrate (100) a porous dielectric layer (130) and imparting a porogen material into an upper portion of the porous dielectric layer to define a less porous dielectric sublayer (130a) within the dielectric layer A capping layer (140) is formed on the less porous dielectric sublayer and a resist pattern (145) is formed over the capping layer to define a first interconnect opening (150) The capping layer and the dielectric layer ar etched through the resist pattern to form the first interconnect opening The resist pattern is removed and an interconnection is formed by filling the first interconnect opening with conductive material (165) The interconnection is planapzed to remove excess conductive material