3467557

Information

• Patent Grant
• 3467557

• References
• Source

• Patent Number

  3,467,557

• Date Filed

  Not available

• Date Issued

  Tuesday, September 16, 1969
  55 years ago

• CPC

  • C07D257/04 - Five-membered rings
  • C30B13/14 - Crucibles or vessels
  • 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
  • H01L29/04 - characterised by their crystalline structure
  • Y10S148/049 - Equivalence and options
  • Y10S148/107 - Melt
  • Y10S148/122 - Polycrystalline

• US Classifications

  • 438 - Semiconductor device manufacturing: process
  • 075 - Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures
  • 148 - Metal treatment
  • 252 - Compositions
  • 257 - Active solid-state devices