3730787

Information

• Patent Grant
• 3730787

• References
• Source

• Patent Number

  3,730,787

• Date Filed

  Not available

• Date Issued

  Tuesday, May 1, 1973
  51 years ago

• CPC

  • H01L29/0821 - Collector regions of bipolar transistors
  • H01L21/00 - Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
  • H01L21/2255 - the applied layer comprising oxides only
  • H01L21/82 - to produce devices
  • H01L23/29 - characterised by the material
  • H01L23/291 - Oxides or nitrides or carbides
  • H01L27/00 - Devices consisting of a plurality of semiconductor or other solid state components formed in or on a common substrate
  • H01L27/0647 - Bipolar transistors in combination with diodes, or capacitors, or resistors
  • H01L2924/0002 - Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
  • Y10S148/036 - Diffusion, nonselective
  • Y10S148/037 - Diffusion-deposition
  • Y10S148/043 - Dual dielectric
  • Y10S148/085 - Isolated-integrated
  • Y10S148/106 - Masks, special
  • Y10S148/114 - Nitrides of silicon
  • Y10S148/151 - Simultaneous diffusion

• US Classifications

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