3904783

Information

• Patent Grant
• 3904783

• References
• Source

• Patent Number

  3,904,783

• Date Filed

  Not available

• Date Issued

  Tuesday, September 9, 1975
  49 years ago

• CPC

  • H05K3/185 - by making a catalytic pattern by photo-imaging
  • C23C18/1608 - from pretreatment step
  • C23C18/1612 - through irradiation means
  • G03C1/49881 - characterised by the process or the apparatus
  • G03C1/50 - Compositions containing noble metal salts other than silver salts, as photosensitive substances
  • G03C1/64 - Compositions containing iron compounds as photosensitive substances
  • G03C1/705 - Compositions containing chalcogenides, metals or alloys thereof, as photosensitive substances
  • G03C5/58 - Processes for obtaining metallic images by vapor deposition or physical development
  • H05K3/426 - initial plating of through-holes in substrates without metal

• US Classifications

  • 430 - Radiation imagery chemistry: process, composition, or product thereof
  • 427 - Coating processes