Mass "soldering" of parts of any complexity. Encyclopedia of radio electronics and electrical engineering
Encyclopedia of radio electronics and electrical engineering / Ham Radio Technologies
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Somehow they gave us a lecture on the chemical properties of Pb and Sn. A practical test showed that the lecture was composed by irresponsible people with a rich imagination, and also that if you place the board (I took a broken piece of a video card) and mark it for one night (preferably in the bathroom) in a container (I took a soap dish) with 35% hydrochloric acid, (you should immediately see the bubbles coming from the solder), then in the morning everything, from resistors to hairy microcircuits, fall off, and their legs and printed tracks remain intact.
Publication: N. Bolshakov, rf.atnn.ru
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