METHOD OF MANUFACTURING METAL-POLYMER HOUSING OF MICROCIRCUIT Russian patent published in 2024 - IPC H01L23/08 

FIELD: various technological processes; electricity.

SUBSTANCE: use for making a metal-polymer housing of a microcircuit. Essence of the invention consists in the fact that a method for manufacturing a metal-polymer housing of a microcircuit comprises mounting a chip on a lead frame, pressing the lead frame into the plastic, removal of flash, application of solder on the surface of external leads of the lead frame, wherein removal of flash is carried out electrochemically, for which preliminary electrochemical degreasing of lead frame is carried out, then electrochemical removal of flash is carried out in a stirred alkaline solution, then, lead frame is washed, before application of solder, a coating of galvanic nickel is applied on the surface of the lead frame, for which lead frames are alkaline degreased, lead frames are etched, further, galvanic nickel is applied in a layer with thickness of 2 to 3 mcm, electroplating nickel is applied using a sulphate electrolyte and using a cathode screen, then tin-bismuth coating is applied on freshly deposited layer of galvanic nickel with thickness of 5–6 mcm.

EFFECT: providing the possibility of increasing the reliability of the metal-polymer housing of the microcircuit.

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