Abstract:
A method of forming CMOS semiconductor (10) materials with PFET (16) and NFET (14) areas formed on a semiconductor substrate (12), covered respectively with a PFET (16) and NFET (14) gate dielectric layers composed of silicon oxide and different degrees of nitridation (18D and 18E) thereof. Provide a silicon substrate (12) with a PFET (16) area and an NFET (14) area and form PFET and NFET gate oxide layers thereover. Provide nitridation of the PFET gate oxide layer above the PFET area to form the PFET gate dielectric layer (42) above the PFET area with a first concentration level of nitrogen atoms in the PFET gate dielectric I ayer above the PFET area. Provide nitridation of the NFET gate oxide layer to form the NFET gate dielectric layer (40) above the NFET area with a different concentration level of nitrogen atoms from the first concentration level. The NFET gate dielectric layer (40) and the PFET gate dielectric layer (42) can have the same thickness.
Abstract:
PROBLEM TO BE SOLVED: To provide a structure and a method for selectively accumulating a germanium spacer on a nitride. SOLUTION: In a method for selectively forming a germanium structure in a semiconductor manufacturing process, a native oxide is removed in a chemical oxide removing (COR) process, then surfaces of heated nitride and oxide are exposed to a germanium-containing gas to selectively form the germanium only on the surface of the nitride, not on the surface of the oxide. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To mount a body contact on a semiconductor-on-insulator device, thereby reducing parasitic capacitance in the device. SOLUTION: A substrate includes a semiconductor layer arranged so as to be covered on an insulating layer. The semiconductor layer includes the substrate including a semiconductor body and an separation region existing around the outer periphery of the semiconductor body, and a gate structure covered on the semiconductor layer of the substrate. A method for manufacturing a semiconductor device is provided. The semiconductor device includes the gate structure existing on a first part of an upper face of the semiconductor body and a silicide body contact directly physically brought into contact with a second part of the semiconductor body separated from the first part of the semiconductor body by a non-silicide semiconductor region. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To reduce the parasitic capacitance of an semiconductor-on-insulator device by providing the semiconductor-on-insulator device with a body contact. SOLUTION: In one embodiment, the invention provides a semiconductor device that includes: a substrate including a semiconductor layer positioned overlaying an insulating layer, the semiconducting layer including a semiconducting body and isolation regions present around a perimeter of the semiconducting body; a gate structure overlaying the semiconducting layer of the substrate, the gate structure present on a first portion on an upper surface of the semiconducting body; and a silicide body contact that is in direct physical contact with a second portion of the semiconducting body that is separated from the first portion of the semiconducting body by a non-silicide semiconducting region. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a highly reliable gate insulation film with respect to a gate insulation film forming method by silicon nitride oxide. SOLUTION: The gate insulation film forming method includes a process for preparing a substrate, a process for forming a silicon dioxide layer on the top surface of the substrate, a process for exposing the silicon dioxide layer to a plasma-nitride forming process in order to change the silicon dioxide layer into a silicon nitride oxide layer, and a process for subjecting the silicon nitride oxide layer to spike-like rapid annealing. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a method and circuit configuration effective for reducing plasma-induced charging damage on a device fabricated on a silicon-on- insulator(SOI) substrate. SOLUTION: An SOI circuit configuration effective for minimizing plasma- induced charging damage during fabrication comprises formation of charge collectors connected to the gate electrode and a semiconductor body, wherein each of the charge collectors has the same or substantially the same shape and dimension. The formation of a connecting structure between a device formed on the SOI substrate and the substrate is delayed until the later stages of processing.