3507716

Information

• Patent Grant
• 3507716

• References
• Source

• Patent Number

  3,507,716

• Date Filed

  Not available

• Date Issued

  Tuesday, April 21, 1970
  54 years ago

• CPC

  • H01L21/2255 - the applied layer comprising oxides only
  • H01L21/316 - composed of oxides or glassy oxides or oxide based glass
  • Y10S148/043 - Dual dielectric
  • Y10S148/173 - Washed emitter

• US Classifications

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