3821039

Information

• Patent Grant
• 3821039

• References
• Source

• Patent Number

  3,821,039

• Date Filed

  Not available

• Date Issued

  Friday, June 28, 1974
  50 years ago

• CPC

  • C30B19/12 - characterised by the substrate
  • Y10S117/913 - Graphoepitaxy or surface modification to enhance epitaxy
  • Y10S148/065 - Gp III-V generic compounds-processing
  • Y10S148/067 - Graded energy gap
  • Y10S148/072 - Heterojunctions
  • Y10S148/138 - Roughened surface
  • Y10S438/964 - Roughened surface

• US Classifications

  • 117 - Single-crystal, oriented-crystal, and epitaxy growth processes
  • 148 - Metal treatment
  • 252 - Compositions
  • 438 - Semiconductor device manufacturing: process