Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method of manufacturing semiconductor device and semiconductor device










Image Number 12 for United States Patent #8084340.

A method of manufacturing a semiconductor device whereby, even in cases where ions are implanted into a shallow region of a semiconductor substrate when a deep well is formed, the influence of the ions on a MOSFET can be removed, thereby eliminating the need for increasing the chip area. A photoresist with a thickness matching the wavelength of exposure light is formed over the semiconductor substrate and then is exposed to the exposure light to form a photoresist pattern with an opening corresponding to a region for forming a first well. Subsequently, using the photoresist pattern as a mask, ions are implanted to form the first well, and after the photoresist pattern is removed, an epitaxial layer is grown over the semiconductor substrate. Consequently, the deep well is virtually located deeper in level than at the time of the ion implantation by an amount corresponding to the thickness of the epitaxial layer.








 
 
  Recently Added Patents
Cis-alkoxy-substituted spirocyclic 1-H-pyrrolidine-2,4-dione derivatives
Photoconductor cartridge
Techniques for image segment accumulation in document rendering
Method for assisting in the checking of transaction records, transaction device, server, mobile terminal, and corresponding computer programs
Method and apparatus for eliminating a motor vehicle tip-over risk
Method and apparatus for transcoding and transrating in distributed video systems
Pull through coronary sinus pacing lead
  Randomly Featured Patents
Vertical fin LED lamp fixture
Semiconductor device
Information recording method and apparatus
Method, architecture and circuit for writing to and reading from a memory during a single cycle
Advanced data link controller having a plurality of multi-bit status registers
Micro-mirror device including dielectrophoretic liquid
Accommodating intraocular lens
Voice encoder, voice decoder, recording medium on which program for realizing voice encoding/decoding is recorded and mobile communication apparatus
Supersonic and subsonic laser with radio frequency excitation
Tank for water closet