3748545

Information

• Patent Grant
• 3748545

• References
• Source

• Patent Number

  3,748,545

• Date Filed

  Not available

• Date Issued

  Tuesday, July 24, 1973
  51 years ago

• CPC

  • H01L21/761 - PN junctions
  • H01L21/74 - Making of localized buried regions
  • H01L27/0623 - in combination with bipolar transistors
  • H01L27/0927 - comprising a P-well only in the substrate
  • Y10S148/037 - Diffusion-deposition
  • Y10S148/085 - Isolated-integrated
  • Y10S148/098 - Layer conversion
  • Y10S148/151 - Simultaneous diffusion

• US Classifications

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