Abstract:
Process of using a dummy gate as an interconnection and a method of manufacturing the same are disclosed. Embodiments include forming on a semiconductor substrate dummy gate structures at cell boundaries, each dummy gate structure including a set of sidewall spacers and a cap disposed between the sidewall spacers; removing a first sidewall spacer or at least a portion of a first cap on a first side of a first dummy gate structure and forming a first gate contact trench over the first dummy gate structure; and filling the first gate contact trench with a metal to form a first gate contact.
Abstract:
A method of forming an improved EUV mask and pellicle with airflow between the area enclosed by the mask and pellicle and the area outside the mask and pellicle and the resulting device are disclosed. Embodiments include forming a frame around a patterned area on an EUV mask; forming a membrane over the frame; and forming holes in the frame.
Abstract:
Methods for fabricating integrated circuits are provided. In one example, a method includes providing a circuit structure layer over a substrate and at least one etch layer over the circuit structure layer, in the at least one etch layer patterning at least one primary pattern feature having at least one primary pattern feature dimension and at least one assist pattern feature having at least one assist pattern feature dimension, where the primary pattern feature dimension is greater than the assist pattern feature dimension, reducing the at least one primary pattern feature dimension and closing the assist pattern feature to form an etch pattern, and etching a circuit structure feature using the etch pattern.
Abstract:
The present disclosure relates to semiconductor structures and, more particularly, to an extreme ultraviolet (EUV) lithography mask and methods of manufacture. The EUV mask structure includes: a reflective layer; a capping material on the reflective layer; a buffer layer on the capping layer; alternating absorber layers on the buffer layer; and a capping layer on the top of the alternating absorber layers.
Abstract:
Process of using a dummy gate as an interconnection and a method of manufacturing the same are disclosed. Embodiments include forming on a semiconductor substrate dummy gate structures at cell boundaries, each dummy gate structure including a set of sidewall spacers and a cap disposed between the sidewall spacers; removing a first sidewall spacer or at least a portion of a first cap on a first side of a first dummy gate structure and forming a first gate contact trench over the first dummy gate structure; and filling the first gate contact trench with a metal to form a first gate contact.
Abstract:
The present disclosure relates to semiconductor structures and, more particularly, to post spacer self-aligned cut structures and methods of manufacture. The method includes: providing a non-mandrel cut; providing a mandrel cut; forming blocking material on underlying conductive material in the non-mandrel cut and the mandrel cut; forming trenches with the blocking material acting as a blocking mask at the mandrel cut and the non-mandrel cut; and filling the trenches with metallization features such that the metallization features have a tip to tip alignment.
Abstract:
Methods for creating a EUV photolithography mask with a thinner highly EUV absorbing absorber layer and the resulting device are disclosed. Embodiments include forming a multilayer reflector (MLR); forming first and second layers of a first EUV absorbing material over the MLR, the second layer being between the first layer and the MLR; and implanting the first layer with particles of a second EUV absorbing material, wherein the first EUV absorbing material is etchable and has a lower EUV absorption coefficient than the second EUV absorbing material, and wherein the implanted particles are substantially separated from each other.