Metal working – Method of mechanical manufacture – Electrical device making
Patent
1993-02-22
1996-03-26
Echols, P. W.
Metal working
Method of mechanical manufacture
Electrical device making
338 22R, 264 61, H01C 704
Patent
active
055009964
ABSTRACT:
In a method for manufacturing a thermistor having a negative temperature coefficient in multi-layer technology, a plurality of layers are produced of ceramic material by producing a suspension and then drawing out with a stripping technique to form an extremely thin film from which the individual ceramic material layers are formed. By a silk screening technique, metal coats are applied onto the ceramic metal layers, the metal coats containing at least one precious metal as a critical constituent selected from the group consisting of Hg, Au, Pd, and Pt. The metal layers extend from one side edge of the ceramic layer over the ceramic layer and stop short of and are spaced from the opposite side edge. The ceramic layers are stacked on top of one another, but with an alternating offset of the metal coats. A solderable metallization is applied at sides of the stack and is connected to every other coat at the respective sides.
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patent: 4454495 (1984-06-01), Werner et al.
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Fritsch Georg
Schuster Hans G.
Echols P. W.
Siemens Aktiengesellschaft
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