3443914

Information

• Patent Grant
• 3443914

• References
• Source

• Patent Number

  3,443,914

• Date Filed

  Not available

• Date Issued

  Tuesday, May 13, 1969
  55 years ago

• CPC

  • H01L23/49582 - Metallic layers on lead frames
  • B23K35/004 - at least one of the workpieces being of a metal of the iron group
  • B23K35/0238 - layered
  • B23K35/0272 - with more than one layer of coating or sheathing material
  • B23K35/30 - with the principal constituent melting at less than 1550 degrees C
  • C03C27/046 - of metals, metal oxides or metal salts only
  • H01L23/4924 - characterised by the materials
  • H01L24/48 - of an individual wire connector
  • H01L2224/45014 - Ribbon connectors
  • H01L2224/45015 - being circular
  • H01L2224/45144 - Gold (Au) as principal constituent
  • H01L2224/45155 - Nickel (Ni) as principal constituent
  • H01L2224/4516 - Iron (Fe) as principal constituent
  • H01L2224/45572 - Two-layer stack coating
  • H01L2224/45611 - Tin (Sn) as principal constituent
  • H01L2224/45639 - Silver (Ag) as principal constituent
  • H01L2224/45644 - Gold (Au) as principal constituent
  • H01L2224/45647 - Copper (Cu) as principal constituent
  • H01L2224/45664 - Palladium (Pd) as principal constituent
  • H01L2224/48247 - connecting the wire to a bond pad of the item
  • H01L2224/48664 - Palladium (Pd) as principal constituent
  • H01L2224/85464 - Palladium (Pd) as principal constituent
  • H01L2924/01004 - Beryllium [Be]
  • H01L2924/01046 - Palladium [Pd]
  • H01L2924/01078 - Platinum [Pt]
  • H01L2924/01079 - Gold [Au]
  • H01L2924/01322 - Eutectic Alloys
  • H01L2924/09701 - Low temperature co-fired ceramic [LTCC]
  • Y10S428/926 - Thickness of individual layer specified
  • Y10T428/12722 - Next to Group VIII metal-base component
  • Y10T428/12875 - Platinum group metal-base component
  • Y10T428/12882 - Cu-base component alternative to Ag-, Au-, or Ni-base component

• US Classifications

  • 428 - Stock material or miscellaneous articles
  • 174 - Electricity: conductors and insulators
  • 257 - Active solid-state devices