公开(公告)号：JPH1060685A

公开(公告)日：1998-03-03

申请号：JP14911497

申请日：1997-06-06

Applicant: LUCENT TECHNOLOGIES INC

Inventor： ABYS JOSEPH ANTHONY ,  CHONGLUN FAN ,  IGOR VELJKO KADI JA

IPC: C25D3/12 ,  C25D5/12 ,  C25D7/00 ,  H01L21/48 ,  H01L23/495 ,  H01L23/50

Abstract: PROBLEM TO BE SOLVED: To provide a nickel coating of a lead frame which is not cracked when applied with a stress corresponding to the packaging of an electronic device. SOLUTION: The metallic lead frame substrate of a lead frame consists of copper, copper alloy or nickel alloy, the lead frame 10 is coated with a conformal nickel coating, and the lead frame substrate is made resistant to cracking when bent through an angle of at least 82 with 150-300μm radius of curvature. When the lead frame 10 is bent by this method, the surface of the lead frame substrate is deformed. Provided that the depth of deformation does not exceed about 5μm, a crack passing through the thickness of the conformal nickel coating is not brought about.

公开(公告)号：SG87169A1

公开(公告)日：2002-03-19

申请号：SG200005261

申请日：2000-09-19

Applicant: LUCENT TECHNOLOGIES INC

Inventor： JOSEPH ANTHONY ABYS ,  CHONGLUN FAN

IPC: C25D5/12 ,  B32B15/01 ,  C23C18/08 ,  C25D5/10 ,  C25D7/00 ,  H01L23/495 ,  H01L23/50 ,  H01R13/03

Abstract: In accordance with the invention, a metal substrate (10) is coated with a multilayer surface finish (11) comprising, in succession, an amorphous metal underlayer (12) a corrosion-resistent metal middle layer (13) and one or more outer layers of precious metal (14). In an exemplary embodiment the metal substrate comprises copper alloy, the amorphous metal underlayer is Ni-P, the middle layer is nickel and the outer layer is palladium. The resulting structure is particularly useful as an electrical connector.

公开(公告)号：SG85726A1

公开(公告)日：2002-01-15

申请号：SG200004635

申请日：2000-08-18

Applicant: LUCENT TECHNOLOGIES INC

Inventor： JOSEPH ANTHONY ABYS ,  CONOR ANTHONY DULLAGHAN ,  CHONGLUN FAN ,  BRIAN THOMAS SMITH

IPC: C25D3/12 ,  C25D3/56 ,  C25D3/62 ,  C25D5/12 ,  C25D15/00 ,  C25D15/02 ,  H01R13/00 ,  H01R13/03 ,  H05K3/24

Abstract: An electrical connector comprises connector contacts having a metal base and a surface finish layer over the base, the surface finish layer being a composite of an electroplated precious metal composition and wear resistant particles dispersed therein. In the preferred embodiment, the precious metal layer is a PdCo alloy and the wear resistant particles are sub-micron sized lubricating particles, e.g. polytetrafluoroethylene particles and a flash coat of gold is provided over the composite layer.