Resources Contact Us Home
Semiconductor device structures with reduced junction capacitance and drain induced barrier lowering and methods for fabricating such device structures and for fabricating a semiconductor-on-i

Image Number 10 for United States Patent #7659178.

Semiconductor device structures with reduced junction capacitance and drain induced barrier lowering, methods for fabricating such device structures, and methods for forming a semiconductor-on-insulator substrate. The semiconductor structure comprises a semiconductor layer and a dielectric layer disposed between the semiconductor layer and the substrate. The dielectric layer includes a first dielectric region with a first dielectric constant and a second dielectric region with a second dielectric constant that is greater than the first dielectric constant. In one embodiment, the dielectric constant of the first dielectric region may be less than about 3.9 and the dielectric constant of the second dielectric region may be greater than about ten (10). The semiconductor-on-insulator substrate comprises a semiconductor layer separated from a bulk layer by an insulator layer of a high-dielectric constant material. The fabrication methods comprise modifying a region of the dielectric layer to have a lower dielectric constant.

  Recently Added Patents
System and method for oscillator frequency control
Program recording medium, image processing apparatus, imaging apparatus, and image processing method
Case for camera
Self assembly of elements for displays
Materials and methods for synthesis of a flavor and aroma volatile in plants
Reliable event broadcaster with multiplexing and bandwidth control functions
Phase-amplitude 3-D stereo encoder and decoder
  Randomly Featured Patents
Nucleic acid constructs encoding cytotoxic ribonuclease variants
Multiple concentric section golf ball
Fluorescent lamp and amalgam assembly therefor
Micellar fluid for low and high hardness crude oil displacement
Process for the mass production of multiwalled carbon nanotubes
Attachment for a hair dryer
Gaming system and method for enabling a player to select progressive awards to try for and chances of winning progressive awards
Optical superconducting device
Photogrammetric laser system