2193610

Information

• Patent Grant
• 2193610

• References
• Source

• Patent Number

  2,193,610

• Date Filed

  Not available

• Date Issued

  Tuesday, March 12, 1940
  85 years ago

• CPC

  • H01L21/14 - Treatment of the complete device
  • H01L21/02521 - Materials
  • H01L21/02667 - Crystallisation or recrystallisation of non-monocrystalline semiconductor materials
  • H01L21/103 - Conversion of the selenium or tellurium to the conductive state
  • H01L21/12 - Application of an electrode to the exposed surface of the selenium or tellurium after the selenium or tellurium has been applied to the foundation plate

• US Classifications

  • 438 - Semiconductor device manufacturing: process
  • 252 - Compositions
  • 257 - Active solid-state devices
  • 420 - Alloys or metallic compositions
  • 428 - Stock material or miscellaneous articles