Abstract:
By forming a stressed semiconductor material in a gate electrode, a biaxial tensile strain may be induced in the channel region, thereby significantly increasing the charge carrier mobility. This concept may be advantageously combined with additional strain-inducing sources, such as embedded strained semiconductor materials in the drain and source regions, thereby providing the potential for enhancing transistor performance without contributing to process complexity.
Abstract:
By providing a test structure for evaluating the patterning process and/or the epitaxial growth process for forming embedded semiconductor alloys in sophisticated semiconductor devices, enhanced statistical relevance in combination with reduced test time may be accomplished.
Abstract:
By repeatedly applying a process sequence comprising an etch process and a selective epitaxial growth process during the formation of drain and source areas in a transistor device, highly complex dopant profiles may be generated on the basis of in situ doping. Further-more, a strain material may be provided while stress relaxation mechanisms may be reduced due to the absence of any implantation processes.
Abstract:
A substrate diode for an SOI device is formed in accordance with an appropriately designed manufacturing flow, wherein transistor performance enhancing mechanisms may be implemented substantially without affecting the diode characteristics. In one aspect, respective openings for the substrate diode may be formed after the formation of a corresponding sidewall spacer structure used for defining the drain and source regions, thereby obtaining a significant lateral distribution of the dopants in the diode areas, which may therefore provide sufficient process margins during a subsequent silicidation sequence on the basis of a removal of the spacers in the transistor devices. In a further aspect, in addition to or alternatively, an offset spacer may be formed substantially without affecting the configuration of respective transistor devices.