3473977

Information

• Patent Grant
• 3473977

• References
• Source

• Patent Number

  3,473,977

• Date Filed

  Not available

• Date Issued

  Tuesday, October 21, 1969
  55 years ago

• CPC

  • H01L21/8222 - Bipolar technology
  • G01R31/2644 - Adaptations of individual semiconductor devices to facilitate the testing thereof
  • H01L21/00 - Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
  • H01L21/2205 - from the substrate during epitaxy
  • Y10S148/037 - Diffusion-deposition
  • Y10S148/085 - Isolated-integrated
  • Y10S148/098 - Layer conversion

• US Classifications

  • 438 - Semiconductor device manufacturing: process
  • 117 - Single-crystal, oriented-crystal, and epitaxy growth processes
  • 148 - Metal treatment
  • 257 - Active solid-state devices
  • 427 - Coating processes