2953730

Information

• Patent Grant
• 2953730

• References
• Source

• Patent Number

  2,953,730

• Date Filed

  Not available

• Date Issued

  Tuesday, September 20, 1960
  64 years ago

• CPC

  • H01L29/41 - characterised by their shape, relative sizes or dispositions
  • H01L21/00 - Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
  • H01L21/24 - Alloying of impurity materials
  • H01L27/082 - including bipolar components 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
  • H01L29/06 - characterised by their shape characterised by the shapes, relative sizes, or dispositions of the semiconductor regions; characterised by the concentration or distribution of impurities within semiconductor regions
  • H01L29/73 - Bipolar junction transistors
  • Y10T29/12 - Buckle making
  • Y10T29/40 - Umbrella-frame making

• US Classifications

  • 257 - Active solid-state devices
  • 029 - Metal working
  • 148 - Metal treatment