2168462

Information

• Patent Grant
• 2168462

• References
• Source

• Patent Number

  2,168,462

• Date Filed

  Not available

• Date Issued

  Tuesday, August 8, 1939
  84 years ago

• CPC

  • H01L21/103 - Conversion of the selenium or tellurium to the conductive state
  • H01L21/02521 - Materials
  • H01L21/02625 - using melted materials
  • H01L21/02667 - Crystallisation or recrystallisation of non-monocrystalline semiconductor materials

• US Classifications

  • 438 - Semiconductor device manufacturing: process
  • 257 - Active solid-state devices
  • 427 - Coating processes