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- W3100907983 abstract "Power electronic modules are used in engineering related to the need to transmit high-current signals. Typical areas of application of such modules are aircraft navigation systems, elements of switching power circuits and other high-load connections. The central unit of the module is a ceramic base, on which conductive tracks are formed and electronic components are mounted. The finished substrate is often called a switchboard. The substrate performs two main functions: Is the dielectric basis of the printed circuit formed on one or two sides. Provides heat dissipation emitted by semiconductor crystals and circuit elements. Used for substrates non-hygroscopic ceramics, heat-resistant, is an insulating material with high mechanical and dielectric properties. It is relatively easy to manufacture and low cost. In the manufacture of power modules using ceramic substrates of aluminum oxide or nitride with a multilayer metallized coating with a thickness of several microns to several tens of microns (depending on the application), which provides the required degree of adhesion of the coating to ceramics and applied on one or both sides. The main requirements for the finished product are the minimum dimensions and low cost of materials and production process. In addition, the decisive factors are high technical characteristics, resistance to environmental influences and reliability. The design of the finished module must provide minimum values of transient thermal resistances, distributed inductances of power busbars, high insulation voltage. Adhesion strength depends on many factors: coating technology, film material, substrate material; and may decrease during operation of the finished product. During the operation of power modules, they are subjected to thermal and mechanical loads, including vibration. This leads to the destruction of components from overheating and damage to the mechanical damage of the modules. Often the failure occurs in the structure of the substrate-coating conductor. The main reason for this destruction is the low adhesive strength of the metal film to the ceramic base." @default.
- W3100907983 created "2020-11-23" @default.
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- W3100907983 date "2020-11-19" @default.
- W3100907983 modified "2023-10-17" @default.
- W3100907983 title "METHODS OF METALIZATION OF CERAMICS USED IN PRODUCTION OF POWER ELECTRONIC MODULES AND ELECTRIC VACUUM DEVICES" @default.
- W3100907983 doi "https://doi.org/10.36074/2663-4139.15.06" @default.
- W3100907983 hasPublicationYear "2020" @default.
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