3575741

Information

• Patent Grant
• 3575741

• References
• Source

• Patent Number

  3,575,741

• Date Filed

  Not available

• Date Issued

  Tuesday, April 20, 1971
  53 years ago

• CPC

  • H01L21/743 - Making of internal connections, substrate contacts
  • H01L21/761 - PN junctions
  • H01L27/0658 - Vertical bipolar transistor in combination with resistors or capacitors
  • Y10S148/036 - Diffusion, nonselective
  • Y10S148/037 - Diffusion-deposition
  • Y10S148/085 - Isolated-integrated
  • Y10S438/921 - Nonselective diffusion

• US Classifications

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