FIELD: process engineering.
SUBSTANCE: invention relates to power electronics. In compliance with this process, metallic chassis is connected with ceramic substrate by liquid metal. Multiple heat-emitting rubs is formed at part for cutting that makes a part of chassis by fixation by retainer intended for expansion load to said part for cutting whereat heat-emitting ribs should be made. Besides, it is performed by cutting the grooves at displacement of multiblade cutter. Said cutter consists of multiple disc blades. Cutting is executed over the surface whereto expansion load is applied at rotation of said cutter. This invention covers also the ribbed substrate design.
EFFECT: simplified production.
19 cl, 11 dwg, 1 tbl, 3 ex
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