3404450

Information

• Patent Grant
• 3404450

• References
• Source

• Patent Number

  3,404,450

• Date Filed

  Not available

• Date Issued

  Tuesday, October 8, 1968
  56 years ago

• CPC

  • H01L27/0623 - in combination with bipolar transistors
  • H01L21/82 - to produce devices
  • Y10S148/007 - Autodoping
  • Y10S148/037 - Diffusion-deposition
  • Y10S148/051 - Etching
  • Y10S148/053 - Field effect transistors fets
  • Y10S148/085 - Isolated-integrated
  • Y10S148/098 - Layer conversion

• US Classifications

  • 438 - Semiconductor device manufacturing: process
  • 148 - Metal treatment
  • 257 - Active solid-state devices
  • 365 - Static information storage and retrieval