C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
117/162, 25/97
C04B 33/32 (2006.01) C04B 35/64 (2006.01) F27D 5/00 (2006.01) H05K 1/03 (2006.01) H05K 3/46 (2006.01)
Patent
CA 1129268
Abstract A method of achieving uniform shrinkage of a laminated green ceramic substrate during sintering wherein the substrate is placed on a flat, relatively thick plate of refractory material such as molybdenum, tantalum or tungsten or alloys thereof with the flat plate provided with a thin surface coating layer of a ceramic material, and heating the substrate to a sintering temperature and maintaining the temperature for a time sufficient to sinter the substrate. A setter plate for supporting a planar green ceramic substrate during the sinterinq operation, the setter plate is made of a refractory material and pro- vided with a thin ceramic coating at least on the top surface.
361714
International Business Machines Corporation
Na
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