3890215

Information

• Patent Grant
• 3890215

• References
• Source

• Patent Number

  3,890,215

• Date Filed

  Not available

• Date Issued

  Tuesday, June 17, 1975
  49 years ago

• CPC

  • H01L21/31679 - of AIII BV compounds
  • H01L21/02241 - III-V semiconductor
  • H01L21/02258 - formation by anodic treatment
  • H01L21/3063 - Electrolytic etching
  • H01L21/30635 - of A three - B five compounds
  • 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
  • Y10S438/977 - Thinning or removal of substrate

• US Classifications

  • 205 - Electrolysis: processes, compositions used therein, and methods of preparing the compositions
  • 257 - Active solid-state devices
  • 438 - Semiconductor device manufacturing: process