摘要:
A potentiometer apparatus and method include a plurality of potentiometer components etched onto a substrate. A conductor layer can be printed and fired upon the substrate and over the array of potentiometer components. Thereafter, a thick film layer can be configured upon the substrate. Each potentiometer component can then be laser trimmed from among the plurality of potentiometer components in order to obtain a proper resistance and linearity for each potentiometer component thereof, thereby forming a potentiometer apparatus from each potentiometer among the potentiometer components. The resulting potentiometer apparatus thus constitutes an advanced thick-film (ATF) potentiometer.
摘要:
An improved wiper arm for a potentiometer having bonded at least to the wiping end thereof, an electrically conductive, synthetic, resinous polymerizate, formed in situ by curing with an epoxy curing agent, a composition containing about 25 to 40 weight percent of an epoxy resin, about 40 to 70 weight percent finely divided silver, and about 5 to 20 weight percent finely divided carbon.
摘要:
A method of the invention manufactures a conductive resin composition having powdered silver and a reinforcing agent of the Mohs hardness 3.5 to 4.5 contained in binder resin, and forms an electrode substrate by use of the conductive resin composition. Thereby, hardness balance between phosphor copper and an electrode is regulated into the most appropriate state, and a wear resistance of both can be enhanced.
摘要:
A binder resin for sliding resistors contains an acetylene-terminated polyamic acid oligomer represented by the following general formula (I): wherein n is an integer of zero or more.
摘要:
On a surface of a transfer sheet, a resistor paste is first patterned, and a binder resin thereof is then heat-cured to form resistor layers. Next, an electrode paste containing a binder resin, which has a thermosetting temperature lower than a thermosetting temperature and a glass transition temperature of the binder resin of the resistor layers, is patterned on surfaces of the resistor layers and is then heat-cured, thereby forming electrode layers. By the steps described above, powdered silver contained in the electrode layers is unlikely to ooze into the resistor layers.
摘要:
A paste composition for preparation of electrically resistive layers is described comprising a curable polymer binder in which electrically conductive pigments are dispersed, wherein the composition contains as the electrically conductive pigments a glass-like carbon with a highly unoriented tri-dimensionally cross-linked coil structure.
摘要:
A polymer composition comprises at least one substantially non-conductive polymer binder and at least first and second electrically conductive fillers. The first electrically conductive filler is comprised of particles having avoid-bearing structure; and the second electrically conductive filler is comprised of particles which are acicular in shape.