2215890

Information

• Patent Grant
• 2215890

• References
• Source

• Patent Number

  2,215,890

• Date Filed

  Not available

• Date Issued

  Tuesday, September 24, 1940
  84 years ago

• CPC

  • H01L21/168 - Treatment of the complete device
  • H01L21/02565 - Oxide semiconducting materials not being Group 12/16 materials
  • H01L21/02614 - Transformation of metal
  • H01L21/165 - Reduction of the copper oxide, treatment of the oxide layer

• US Classifications

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