3735481

Information

• Patent Grant
• 3735481

• References
• Source

• Patent Number

  3,735,481

• Date Filed

  Not available

• Date Issued

  Tuesday, May 29, 1973
  51 years ago

• CPC

  • H01L29/0821 - Collector regions of bipolar transistors
  • H01L27/00 - Devices consisting of a plurality of semiconductor or other solid state components formed in or on a common substrate
  • H01L27/0652 - Vertical bipolar transistor in combination with diodes, or capacitors, or resistors
  • Y10S148/037 - Diffusion-deposition
  • Y10S148/038 - Diffusions-staged
  • Y10S148/085 - Isolated-integrated

• US Classifications

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