2481739

Information

• Patent Grant
• 2481739

• References
• Source

• Patent Number

  2,481,739

• Date Filed

  Not available

• Date Issued

  Tuesday, September 13, 1949
  75 years ago

• CPC

  • H01L21/105 - Treatment of the surface of the selenium or tellurium layer after having been made conductive

• US Classifications

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