Electrical connectors – Preformed panel circuit arrangement – e.g. – pcb – icm – dip,... – With provision to conduct electricity from panel circuit to...
Reexamination Certificate
2006-04-04
2006-04-04
Gilman, Alexander (Department: 2833)
Electrical connectors
Preformed panel circuit arrangement, e.g., pcb, icm, dip,...
With provision to conduct electricity from panel circuit to...
Reexamination Certificate
active
07021941
ABSTRACT:
An LGA connector is used to interconnect an LGA package and a printed circuit board. The LGA connector includes an elastomeric body with a plurality of through-holes. Metal films are formed on inner walls of through-holes and splay out around the mouths of their upper and lower openings. The metal films are formed by vacuum metallization, sputtering, chemical plating, electrical plating or PVD. The through-holes have a funnel-like shape to absorb external stresses and redirect the stress to shrink the through-hole diameters. Moreover, the metal films' elastic deformation is larger than conventional metal conductive fillers so as to improve reliability.
REFERENCES:
patent: 5386627 (1995-02-01), Booth et al.
patent: 6204065 (2001-03-01), Ochiai
patent: 6239386 (2001-05-01), DiStefano et al.
patent: 6814584 (2004-11-01), Zaderej
Chen Li-Sen
Chuang Ping
Hsu Chien-Yu
Gilman Alexander
Speed Tech Corp.
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