Process for producing ceramic sintered body having metallized vi

Details Process for producing ceramic sintered body having metallized vi Process for producing ceramic sintered body having metallized vi

1992-08-10

1994-06-07

Nelson, Peter A.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Plural heating steps including sintering

B22F 100, B22F 700

Patent

active

053187440

ABSTRACT:
A process for producing a ceramic sintered body having a metallized via hole previously formed after lamination of the ceramics is disclosed and said process comprises immersing in a first liquid a ceramic semi-sintered body formed through heating at 500 to 900.degree. C. and having a large number of pores and a straight via hole, thereby to allow the first liquid to penetrate into the pores of the semi-sintered body, subsequently immersing the resulting semi-sintered body in a suspension of electrically conductive powder particles having an average particle size of 2 to 3 .mu.m in a second liquid incompatible with the first liquid, thereby to fill the via hole with the suspension, and then sintering the resulting semi-sintered body in a non-oxidizing atmosphere.

REFERENCES:
patent: 4671928 (1987-06-01), Herron et al.
patent: 5011655 (1991-04-01), Mankins
patent: 5124118 (1992-06-01), Youssef et al.

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