摘要:
A method of forming an integrated circuit includes providing a buffer layer comprising a dielectric material above a layer of conductive material and providing a layer of mask material above the buffer layer. The mask material comprises amorphous carbon. The method also includes removing a portion of the buffer layer and the layer of mask material to form a mask. A feature is formed in the layer of conductive material according to the mask.
摘要:
A method of forming an integrated circuit includes providing a buffer layer comprising a dielectric material above a layer of conductive material and providing a layer of mask material above the buffer layer. The mask material comprises amorphous carbon. The method also includes removing a portion of the buffer layer and the layer of mask material to form a mask. A feature is formed in the layer of conductive material according to the mask.
摘要:
A method of using carbon spacers for critical dimension reduction can include providing a patterned photoresist layer above a substrate where the patterned photoresist layer has an aperture with a first width, depositing a carbon film over the photoresist layer and etching the deposited carbon film to form spacers on lateral side walls of the aperture of the patterned photoresist layer, etching the substrate using the formed spacers and patterned photoresist layer as a pattern to form a trench having a second width, and removing the patterned photoresist layer and formed spacers using an oxidizing etch.
摘要:
A method for producing an integrated circuit includes providing a diamond layer above a layer of conductive material. A cap layer is provided above the diamond layer and patterned to form a cap feature. The diamond layer is patterned according to the cap feature to form a mask, and at least a portion of the layer of conductive material is removed according to the mask.
摘要:
A method of forming an integrated circuit includes providing a buffer layer comprising a dielectric material above a layer of conductive material and providing a layer of mask material above the buffer layer. The mask material comprises amorphous carbon. The method also includes removing a portion of the buffer layer and the layer of mask material to form a mask. A feature is formed in the layer of conductive material according to the mask.
摘要:
A method of producing an integrated circuit includes providing a mask definition structure above a layer of conductive material and providing a mask above the layer of conductive material and in contact with at least a portion of the mask definition structure. The mask definition structure comprises a first material and the mask comprises a second material, wherein at least one of the first and second materials comprises amorphous carbon. The mask definition structure is removed, and the layer of conductive material is patterned according to the mask.
摘要:
A method of forming an integrated circuit using an amorphous carbon hard mask involves providing an amorphous carbon material layer above a layer of conductive material and providing an anti-reflective coating (ARC) material layer above the amorphous carbon material. A transition region is formed intermediate the amorphous carbon material layer and the ARC material layer. The transition region has a concentration profile that provides a transition between the amorphous carbon material layer and the ARC material layer. A portion of the amorphous carbon material layer, the ARC material layer, and the transition region is removed to form a hard mask, and a feature is formed in the layer of conductive material according to the hard mask.
摘要:
A method of using amorphous carbon as spacer material in a disposable spacer process can include forming amorphous carbon spacers at lateral side walls of a gate structure over a substrate, implanting dopants in the substrate to form source and drain regions, ashing away the amorphous carbon spacers, and implanting dopants to form shallow structures in the substrate.
摘要:
A method of forming spaces between polysilicon lines can include patterning structures having top SiON layers and bottom amorphous carbon layers where the structures are located over a polysilicon layer and are separated by a first width, forming amorphous carbon spacers along lateral side walls of the patterned structures, etching apertures into the polysilicon layer not covered by the amorphous carbon spacers and the patterned structures where the apertures in the polysilicon layer between adjacent patterned structures have a second width, and ashing away the amorphous carbon spacers and the patterned structures. The second width is less than the first width.
摘要:
An exemplary embodiment relates to a method of using amorphous carbon in replacement gate integration processes. The method can include depositing an amorphous carbon layer above a substrate, patterning the amorphous carbon layer, depositing a dielectric layer over the patterned amorphous carbon layer, removing a portion of the deposited dielectric layer to expose a top of the patterned amorphous carbon layer, removing the patterned amorphous carbon layer leaving an aperture in the dielectric layer, and forming a metal gate in the aperture of the dielectric layer.