3639815

Information

• Patent Grant
• 3639815

• References
• Source

• Patent Number

  3,639,815

• Date Filed

  Not available

• Date Issued

  Tuesday, February 1, 1972
  53 years ago

• CPC

  • H01L29/7325 - having an emitter-base junction leaving at a main surface and a base-collector junction leaving at a peripheral surface of the body
  • H01L23/3157 - Partial encapsulation or coating
  • H01L29/00 - Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier
  • H01L2924/0002 - Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
  • Y10S148/026 - Deposition thru hole in mask
  • Y10S148/036 - Diffusion, nonselective
  • Y10S148/049 - Equivalence and options
  • Y10S148/051 - Etching
  • Y10S148/085 - Isolated-integrated
  • Y10S148/122 - Polycrystalline

• US Classifications

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