Abstract:
Semiconductor device structures and methods for forming a semiconductor device are provided. In embodiments, one or more fins are provided, each of the one or more fins having a lower portion and an upper portion disposed on the lower portion. The lower portion is embedded in a first insulating material. The shape of the upper portion is at least one of a substantially triangular shape and a substantially rounded shape and a substantially trapezoidal shape. Furthermore, a layer of a second insulating material different from the first insulating material is formed on the upper portion.
Abstract:
One method herein includes forming a gate structure above an active area of a semiconductor substrate, forming sidewall spacer structures adjacent the gate structure, forming a masking layer that allows implantation of ions into the gate electrode but not into areas of the active region where source/drain regions for the transistor will be formed, performing a gate ion implantation process to form a gate ion implant region in the gate electrode and performing an anneal process. An N-type transistor including sidewall spacer structures positioned adjacent a gate structure, a plurality of source/drain regions for the transistor and a gate implant region positioned in a gate electrode, wherein the gate implant region is comprised of ions of phosphorous, arsenic or an implant material with an atomic size that is equal to or greater than the atomic size of phosphorous at a concentration level that falls within the range of 5e18-5e21 ions/cm3.
Abstract:
Disclosed herein is a device that includes a first PFET transistor formed in and above a first active region of a semiconducting substrate, a second PFET transistor formed in and above a second active region of the semiconducting substrate, wherein at least one of a thickness of the first and second channel semiconductor materials or a concentration of germanium in the first and second channel semiconductor materials are different.
Abstract:
A method of forming a spacer is disclosed that involves forming a layer of spacer material above an etch stop layer, performing a first main etching process on the layer of spacer material to remove some of material, stopping the etching process prior to exposing the etch stop layer and performing a second over-etch process on the layer of spacer material, using the following parameters: an inert gas flow rate of about 50-200 sscm, a reactive gas flow rate of about 3-20 sscm, a passivating gas flow rate of about 3-20 sscm, a processing pressure about 5-15 mT, a power level of about 200-500 W for ion generation and a bias voltage of about 300-500 V. A device includes a gate structure positioned above a semiconducting substrate, a substantially triangular-shaped sidewall spacer positioned proximate the gate structure and an etch stop layer positioned between the spacer and the gate structure.
Abstract:
When forming high-k metal gate electrode structures in a semiconductor device on the basis of a basic transistor design, undue exposure of sensitive materials at end portions of the gate electrode structures of N-channel transistors may be avoided, for instance, prior to and upon incorporating a strain-inducing semiconductor material into the active region of P-channel transistors, thereby contributing to superior production yield for predefined transistor characteristics and performance.