The term thick-film resistor (TFR) is a general term for a large class of resistive materials comprising a mixture of powdered conductor with a binding insulator material, which is heat-treated to produce synthesized heterogeneous monolithic layers. The survey presented is concerned with the physical processes involved in TFR's. The production technology for TFR's is first described: substrates, pastes, stencils through which the paste is applied, and solder. The mechanisms of current flow in TFR's are described, with mathematical models presented for several aspects of current flow such as hopping conduction and low temperature conductivity. The strain sensitivity of resistance is discussed. Fluctuation processes or noise in TFR's is also discussed.
|Number of pages||13|
|State||Published - 1 Mar 1989|
ASJC Scopus subject areas
- Electrical and Electronic Engineering