Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method for producing transistors










Image Number 15 for United States Patent #7271070.

The invention relates to a method for producing integrable semiconductor components, especially transistors or logic gates, using a p-doped semiconductor substrate. First of all, a mask is applied to the semiconductor substrate in order to define a window that is delimited by a peripheral edge. An n-doped trough is then produced in the semiconductor substrate by means of ion implantation using an energy that is sufficient for ensuring that a p-doped inner area remains on the surface of the semiconductor substrate. The edge area of the n-doped trough extends as far as the surface of the semiconductor substrate. The other n-doped and/or p-doped areas that make up the structure of the transistor or logic gate are then inserted into the p-doped inner area of the semiconductor substrate. The inventive method is advantageous in that it no longer comprises expensive epitaxy and insulation processes. In an n-doped semiconductor substrate, all of the implanted ions are replaced by the complementary species; i.e. n is exchanged for p and vice versa.








 
 
  Recently Added Patents
Conductive polymer and a solid electrolytic capacitor using the same as a solid electrolyte
Method to calibrate RF paths of an FHOP adaptive base station
(4936
High power insulated gate bipolar transistors
Fabric care compositions comprising front-end stability agents
Optical scanner and image-forming device
Electronic product design
  Randomly Featured Patents
Method and apparatus for electronic documents retrieving, displaying document clusters representing relationship with events
Method and system for providing enhanced caller identification information including tailored announcements
Propylene polymer composition
Cardiac assist device
Process for the preparation of 2-acetylcarboxylic esters
Stable resonators for radial flow lasers
Filament for lamp
Model based wind turbine drive train vibration damper
Method and apparatus for the offshore installation of multi-ton prefabricated deck packages on partially submerged offshore jacket foundations
Preparation of substituted 3-aryl-5-haloalkyl-pyrazoles having herbicidal activity