摘要:
In sophisticated semiconductor devices, the lateral electric field in fully depleted transistor elements operated at elevated supply voltages may be significantly reduced by establishing a laterally graded dopant profile at edge regions of the respective channel regions. In some illustrative embodiments to this end, one or more dopant species may be incorporated prior to completing the gate electrode structure.
摘要:
The present disclosure provides resistor structures in sophisticated integrated circuits on the basis of an SOI architecture, wherein a very thin semiconductor layer, typically used for forming fully depleted SOI transistors, may be used as a resistor body. In this manner, significantly higher sheet resistance values may be achieved, thereby providing the potential for implementing high ohmic resistors into sophisticated integrated circuits.
摘要:
The present disclosure provides a semiconductor device including a substrate, a first well and a second well formed in the substrate, the first well being doped with dopants of a first conductivity type and the second well being doped with dopants of a second conductivity type, a third well within the first well, a gate structure partially formed over the first and second wells, and a first epi region on the third well and a drain region electrically coupled to the second well, the first epi region being doped with dopants of the second conductivity type.
摘要:
The present disclosure provides, in various aspects, a method of forming a semiconductor device and accordingly formed semiconductor devices. In accordance with some illustrative embodiments herein, a fin is provided in an upper surface of a substrate, the fin having a height dimension and an initial width dimension. After forming a mask on the fin, wherein the mask only partially covers an upper surface of the fin, the fin is exposed to an etch process for removing material in accordance with the mask such that a channel portion connecting end portions of the fin is formed. Herein, a width dimension of the channel portion is smaller than a width dimension of the end portions. In accordance with some illustrative embodiments of the present disclosure, the channel portion may substantially have a cross-section of one of a triangular shape and a double-sigma shape.
摘要:
In aspects of the present invention, a method of forming a semiconductor device is disclosed, wherein amorphous regions are formed at an early stage during fabrication and the amorphous regions are conserved during subsequent processing sequences, and an intermediate semiconductor device structure with amorphous regions are provided at an early stage during fabrication. Herein a gate structure is provided over a semiconductor substrate and amorphous regions are formed adjacent the gate structure. Source/drain extension regions or source/drain regions are formed in the amorphous regions. In some illustrative embodiments, fluorine may be implanted into the amorphous regions. After the source/drain extension regions and/or the source/drain regions are formed, a rapid thermal anneal process is performed.
摘要:
In sophisticated semiconductor devices, transistors may be formed on the basis of an efficient strain-inducing mechanism by using an embedded strain-inducing semiconductor alloy. The strain-inducing semiconductor material may be provided as a graded material with a smooth strain transfer into the neighboring channel region in order to reduce the number of lattice defects and provide enhanced strain conditions, which in turn directly translate into superior transistor performance. The superior architecture of the graded strain-inducing semiconductor material may be accomplished by selecting appropriate process parameters during the selective epitaxial growth process without contributing to additional process complexity.
摘要:
The present disclosure generally to semiconductor devices, and more particularly to semiconductor devices having high-voltage transistors integrated on a semiconductor-on-insulator substrate and methods of forming the same. The present disclosure provides a semiconductor device including a bulk substrate, a semiconductor layer above the bulk substrate, an insulating layer between the semiconductor layer and the bulk substrate, a source region and a drain region on the bulk substrate, a gate dielectric between the source region and the drain region, the gate dielectric having a first portion on the bulk substrate and a second portion on the semiconductor layer, and a gate electrode above the gate dielectric.
摘要:
Manufacturing techniques and related semiconductor devices are disclosed in which the channel region of analog transistors and/or transistors operated at higher supply voltages may be formed on the basis of a very thin semiconductor layer in an SOI configuration by incorporating a counter-doped region into the channel region at the source side of the transistor. The counter-doped region may be inserted prior to forming the gate electrode structure. With this asymmetric dopant profile in the channel region, superior transistor performance may be obtained, thereby obtaining a performance gain for transistors formed on the basis of a thin semiconductor base material required for the formation of sophisticated fully depleted transistor elements.
摘要:
A method of forming a semiconductor device includes forming a first well and a second well in a substrate, wherein the first well is doped with dopants of a first conductivity type and the second well is doped with dopants of a second conductivity type. A third well is formed within the first well, and a gate structure is formed above the substrate, the gate structure partially overlying at least the first and second wells. A first epi region is formed on the third well, wherein the first epi region is doped with second dopants of the second conductivity type, and a drain region is formed that is electrically coupled to the second well.
摘要:
The present disclosure provides a semiconductor device including a substrate, a first well and a second well formed in the substrate, the first well being doped with dopants of a first conductivity type and the second well being doped with dopants of a second conductivity type, a third well within the first well, a gate structure partially formed over the first and second wells, and a first epi region on the third well and a drain region electrically coupled to the second well, the first epi region being doped with dopants of the second conductivity type.