3491434

Information

• Patent Grant
• 3491434

• References
• Source

• Patent Number

  3,491,434

• Date Filed

  Not available

• Date Issued

  Tuesday, January 27, 1970
  55 years ago

• CPC

  • H01L29/0607 - for preventing surface leakage or controlling electric field concentration
  • H01L21/00 - Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
  • 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
  • Y10S148/049 - Equivalence and options
  • Y10S148/051 - Etching
  • Y10S148/085 - Isolated-integrated
  • Y10S148/144 - Shallow diffusion

• US Classifications

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