Resources Contact Us Home
Method of manufacturing semiconductor device and semiconductor device

Image Number 11 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
Dynamic universal resource locator (URL) construction for accessing media content
Direct sequence spread spectrum predictive cable and component failure technology
Boundary-modulated nanoparticle junctions and a method for manufacture thereof
Indolocarbazole derivative with aromatic phosphne oxide group for organic electroluminescent device and organic electroluminescent device containing same
Channel-assignment for a multi-channel dual-radio mesh backhaul
  Randomly Featured Patents
Semiconductor neural circuit device
Apparatus and method for transmitting/receiving data in a multi-antenna system, and system using the same
System and method for improving modem transmission through private branch exchanges, central offices, and other systems
Copy production machines having supply sheet pick retry
Method and apparatus for boosting an audible signal in a notification system
Method for recovering copper
Table corner apparatus and method of minimizing damage from impact
Reinforced full body suit
System having a controller device, a buffer device and a plurality of memory devices
Tubing expansion