Method of making a vibration-resistant electrical component and

Details Method of making a vibration-resistant electrical component and Method of making a vibration-resistant electrical component and

1982-09-27

1985-06-18

Silbaugh, Jan

Plastic and nonmetallic article shaping or treating: processes

Including step of generating heat by friction

29854, 29855, 29856, 264 62, B28B 2300

Patent

active

045240388

ABSTRACT:
To manufacture a vibration-resistant, shock-resistant electrical connection on a ceramic substrate (11) having an electrically conductive layer (12) applied to a surface (13, 19) thereof, a groove or channel-like depression (16, 20) is formed in the surface, preferably also including a through-bore (18), into which a conductor (17) is placed. The space between the conductor and the groove, the through-bore, if provided, and an extending groove at the other surface (19) of the substrate is filled with a sinterable mass (21), preferably a cermet, containing a metal which is compatible with the metal of the conductor wire (17), both for example containing platinum. As a starting material, the plate with the grooves therein is extrusion-pressed, pre-sintered at a low temperature to give it form stability, then the electrode (12) is applied, then the electrical conductor (17) and the cermet is applied and then the entire sub-assembly is fired to sintering temperature, e.g. about 1500.degree. C.; if desired, a further protective coating (22) of magnesium spinel may be plasma-sprayed on. Due to shrinkage of the ceramic components, the wire (17) will be securely held in position in the groove, and the cermet additionally forming an electrical connection between the wire and the substrate (11). For additional strain relief, the groove can be undulating (FIG. 3).

REFERENCES:
patent: 2750657 (1956-06-01), Herbert
patent: 3405382 (1968-10-01), Wright
patent: 3968193 (1976-07-01), Langstron
patent: 4374457 (1983-02-01), Wiech

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