Process for the production of a solder coating on metallized mat

Details Process for the production of a solder coating on metallized mat Process for the production of a solder coating on metallized mat

1990-01-12

1991-02-26

Rosenberg, Peter D.

Stock material or miscellaneous articles

Composite

Of quartz or glass

B32B 1500

Patent

active

049961110

ABSTRACT:
A solder coating is applied to a metallized ceramic part in that at least two layers, in each case composed of nickel, copper, silver, zinc or tin, are applied chemically or galvanically. Under the soldering conditions molten solder metal forms on these layers. Useful layers for hard solders are those which are in each case composed of Ni, Cu or Ag. For example, a layer of nickel, copper or silver, with a layer thickness of at least 0.5 .mu.m, can be first applied to the metallized ceramic part, followed by at least one further layer of nickel, copper or silver with a layer thickness of 10-105 .mu.m, until a total layer thickness of 15-300 .mu.m is obtained.

REFERENCES:
patent: 2667427 (1954-01-01), Nolte
patent: 3006069 (1961-10-01), Rhoads et al.
patent: 3683488 (1972-08-01), Cook et al.
patent: 4624897 (1986-11-01), Ito
patent: 4861410 (1989-08-01), Clark

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