3716425

Information

• Patent Grant
• 3716425

• References
• Source

• Patent Number

  3,716,425

• Date Filed

  Not available

• Date Issued

  Tuesday, February 13, 1973
  51 years ago

• CPC

  • H01L27/0664 - Vertical bipolar transistor in combination with diodes
  • H01L21/76297 - Dielectric isolation using EPIC techniques
  • H01L21/8222 - Bipolar technology
  • H01L29/0821 - Collector regions of bipolar transistors
  • Y10S148/031 - Diffusion at an edge
  • Y10S148/036 - Diffusion, nonselective
  • Y10S148/085 - Isolated-integrated
  • Y10S148/106 - Masks, special
  • Y10S148/122 - Polycrystalline
  • Y10S148/151 - Simultaneous diffusion

• US Classifications

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