3808473

Information

• Patent Grant
• 3808473

• References
• Source

• Patent Number

  3,808,473

• Date Filed

  Not available

• Date Issued

  Tuesday, April 30, 1974
  50 years ago

• CPC

  • H04R23/006 - using solid state devices
  • H01L21/00 - Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
  • H01L27/00 - Devices consisting of a plurality of semiconductor or other solid state components formed in or on a common substrate
  • H01L27/0788 - comprising combinations of diodes or capacitors or resistors
  • Y10S148/037 - Diffusion-deposition
  • Y10S148/038 - Diffusions-staged
  • Y10S148/085 - Isolated-integrated

• US Classifications

  • 257 - Active solid-state devices
  • 148 - Metal treatment