2498240

Information

• Patent Grant
• 2498240

• References
• Source

• Patent Number

  2,498,240

• Date Filed

  Not available

• Date Issued

  Tuesday, February 21, 1950
  75 years ago

• CPC

  • H01L21/108 - Provision of discrete insulating layers
  • G01S7/04 - Display arrangements
  • H01L21/02425 - Conductive materials
  • H01L21/02521 - Materials
  • H01L21/02557 - Sulfides
  • H01L21/02625 - using melted materials
  • H01L21/02667 - Crystallisation or recrystallisation of non-monocrystalline semiconductor materials
  • 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

  • 257 - Active solid-state devices