The solder nkpuchi ikpughe na mmepe usoro na PCB mbadamba n’ichepụta usoro bụ a PCB osisi na solder nkpuchi mgbe ihuenyo obibi. Na-ekpuchi pads na PCB osisi na diazo film nke mere na ha na-agaghị irradiated site ultraviolet ìhè n’oge ikpughe usoro, na solder-eguzogide nchebe oyi akwa na-ọzọ ike mmasị na PCB elu mgbe ultraviolet ìhè irradiation, na mpe mpe akwa na-adịghị kpughere. maka ìhè ultraviolet. Mgbasa ọkụ nwere ike ikpughe paịlị ọla kọpa ka e wee tinye ndu na tin n’oge ọkwa ikuku dị ọkụ.

Ebumnuche nke ikpughe bọọdụ sekit bụ ịgbanye ọkụ na igbochi site na ọkụ ultraviolet. Akụkụ transperent nke ihe nkiri ahụ na ihe nkiri akọrọ na-enweta mmeghachi omume polymerization anya, ya bụ, n’okpuru irradiation ọkụ ultraviolet, onye na-ese foto na-etinye ike ọkụ ma na-emebi n’ime radicals free, na free radicals na-amalite ìhè ọzọ. Na polymerized monomer na-enweta polymerization na cross-linking mmeghachi omume, na-etolite a macromolecular Ọdịdị insoluble na itughari alkali ngwọta mgbe mmeghachi omume. Ihe nkiri ahụ bụ agba aja aja, ìhè ultraviolet enweghị ike ịbanye, na fim ahụ enweghị ike ịnweta polymerization anya na ihe nkiri akọrọ ya kwekọrọ. A na-emekarị mkpughe n’igwe mkpughe nwere akụkụ abụọ akpaka.

Enwere ụdị mkpughe abụọ: mkpughe sekit na mkpughe solder. Ọrụ a bụ iji gwọọ mpaghara ebe a na-agbanye ọkụ site na ọkụ ọkụ ultraviolet, wee mepụta ya iji mepụta usoro sekit ma ọ bụ ihe na-eguzogide ihe na-ere ahịa.

Usoro nke ikpughe sekit bụ itinye ihe nkiri na-ese foto na bọọdụ mkpuchi ọla kọpa, wee tinye ya na ụkpụrụ sekit na-adịghị mma ma kpughee ya na ụzarị ultraviolet. Ihe nkiri foto na-emetụ n’ahụ site na ụzarị ultraviolet ga-enweta mmeghachi omume polymerization. The photosensitive film ebe a nwere ike iguzogide Na2CO3 adịghị ike alkali n’oge mmepe. A na-asachapụ ihe ngwọta ahụ, a ga-ehichapụkwa akụkụ ahụ na-enweghị uche n’oge mmepe. N’ụzọ dị otú a, a na-ebufe ụkpụrụ sekit na ihe nkiri na-adịghị mma nke ọma na mbadamba ọla kọpa;

Usoro nke ikpughe ihe nkpuchi solder bụ otu ihe ahụ: tinye agba fotosensitivity na bọọdụ sekit, wee kpuchie ebe ndị a ga-ere ere n’oge mkpughe, nke mere na pads na-ekpughe mgbe mmepe.