摘要:
A method of lithography patterning includes forming a hard mask layer on a material layer and forming a capping layer on the hard mask layer. The capping layer does not react with oxygen gas during a photoresist ashing process. The capping layer is patterned by using a first resist pattern and a second resist pattern as etch masks. After the capping layer is patterned, the hard mask layer is patterned by using the patterned capping layer as an etch mask.
摘要:
A system and method for improving the performance of an integrated circuit by lowering RC delay time is provided. A preferred embodiment comprises adding a reactive etch gas to the ash/flush plasma process following a low-k dielectric etch. The illustrative embodiments implement a removal of the damage layer that is formed during a low-k dielectric etch.
摘要:
A semiconductor manufacturing method that includes defining a substrate, depositing a first layer over the substrate, providing a protection layer over the first layer, providing a layer of photoresist over the protection layer, patterning and defining the photoresist layer to form at least one photoresist structure having at least one substantially vertical sidewall and one substantially horizontal top, depositing a photo-insensitive material over the at least one photoresist structure and the protection layer with a chemical-vapor deposition process having at least one reactive gas, wherein an amount of the photo-insensitive material deposited on the top of the photoresist structure is substantially greater than an amount of the photo-insensitive material deposited on the at least one sidewall of the photoresist structure, and wherein the protection layer is non-reactive with the at least one reactive gas, and anisotropically etching the protection layer and the layer to be etched.