3631303

Information

• Patent Grant
• 3631303

• References
• Source

• Patent Number

  3,631,303

• Date Filed

  Not available

• Date Issued

  Tuesday, December 28, 1971
  54 years ago

• CPC

  • H01J1/34 - Photo-emissive cathodes
  • H01J2201/3423 - Semiconductors
  • Y10S148/042 - Doping, graded, for tapered etching
  • Y10S148/049 - Equivalence and options
  • Y10S148/065 - Gp III-V generic compounds-processing
  • Y10S148/067 - Graded energy gap
  • Y10S148/072 - Heterojunctions
  • Y10S148/12 - Photocathodes-Cs coated and solar cell
  • Y10S438/936 - Graded energy gap

• US Classifications

  • 257 - Active solid-state devices
  • 148 - Metal treatment
  • 313 - Electric lamp and discharge devices
  • 438 - Semiconductor device manufacturing: process