3449643

Information

• Patent Grant
• 3449643

• References
• Source

• Patent Number

  3,449,643

• Date Filed

  Not available

• Date Issued

  Tuesday, June 10, 1969
  55 years ago

• CPC

  • H01L27/0826 - Combination of vertical complementary transistors
  • H01L21/82285 - Complementary vertical transistors
  • Y10S148/037 - Diffusion-deposition
  • Y10S148/085 - Isolated-integrated
  • Y10S148/098 - Layer conversion
  • Y10S148/151 - Simultaneous diffusion

• US Classifications

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