3885994

Information

• Patent Grant
• 3885994

• References
• Source

• Patent Number

  3,885,994

• Date Filed

  Not available

• Date Issued

  Tuesday, May 27, 1975
  49 years ago

• CPC

  • H01L21/00 - Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
  • H01L21/3083 - characterised by their size, orientation, disposition, behaviour, shape, in horizontal or vertical plane
  • H01L21/8222 - Bipolar technology
  • H01L27/1024 - Arrays of single bipolar transistors only
  • H01L29/00 - Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier
  • Y10S148/043 - Dual dielectric
  • Y10S148/085 - Isolated-integrated
  • Y10S148/106 - Masks, special
  • Y10S148/145 - Shaped junctions
  • Y10S148/151 - Simultaneous diffusion

• US Classifications

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