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
Local call local switching at handover
Method of manufacturing semiconductor device
Color variation control process for molding plastic and composite multi-color articles
Buildable dinnerware
Method for controlling a motor
Protecting a gaming machine from rogue code
Sensing during magnetic resonance imaging
  Randomly Featured Patents
Method and apparatus for providing virtual facility communication service
Synthesis of 4-substituted phthalic anhydrides
Automatic velocity controlled delay circuit
Method and apparatus for a valve and irrigator
Multimodal natural language query system for processing and analyzing voice and proximity-based queries
Scheduling of isochronous traffic in time and frequency to reduce contention
Heat sink assembly
Independently controlled, double gate nanowire memory cell with self-aligned contacts
Apparatus for damping pulp stock pressure fluctuations in a headbox
Dispensing apparatus with dosage counter