3928091

Information

• Patent Grant
• 3928091

• References
• Source

• Patent Number

  3,928,091

• Date Filed

  Not available

• Date Issued

  Tuesday, December 23, 1975
  49 years ago

• CPC

  • H01L21/76202 - using a local oxidation of silicon
  • H01L21/32 - using masks
  • H01L21/74 - Making of localized buried regions
  • Y10S148/007 - Autodoping
  • Y10S148/036 - Diffusion, nonselective
  • Y10S148/037 - Diffusion-deposition
  • Y10S148/085 - Isolated-integrated
  • Y10S148/117 - Oxidation, selective

• US Classifications

  • 438 - Semiconductor device manufacturing: process
  • 148 - Metal treatment
  • 257 - Active solid-state devices