3817794

Information

• Patent Grant
• 3817794

• References
• Source

• Patent Number

  3,817,794

• Date Filed

  Not available

• Date Issued

  Tuesday, June 18, 1974
  51 years ago

• CPC

  • H01L27/0825 - Combination of vertical direct transistors of the same conductivity type having different characteristics,(
  • H01L21/8222 - Bipolar technology
  • H01L27/00 - Devices consisting of a plurality of semiconductor or other solid state components formed in or on a common substrate
  • Y10S148/085 - Isolated-integrated
  • Y10S148/087 - I2L integrated injection logic
  • Y10S148/145 - Shaped junctions
  • Y10S148/151 - Simultaneous diffusion

• US Classifications

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