Yog vim li cas rau plating, nws qhia tau hais tias cov zaj duab xis qhuav thiab tooj liab ntawv hlau phaj sib txuas tsis muaj zog, yog li cov plating tov sib sib zog nqus, uas ua rau "phem tsis zoo" ib feem ntawm txheej thickening, feem ntau PCB manufacturers yog tshwm sim los ntawm cov nram qab no yog vim li cas. :
1. Lub zog raug siab lossis qis
Nyob rau hauv lub teeb ultraviolet, lub photoinitiator, uas absorbs lub teeb lub zog, tawg mus rau hauv dawb radicals los pib lub photopolymerization ntawm monomers, tsim lub cev molecules insoluble nyob rau hauv dilute alkali tov.
Nyob rau hauv raug, vim tsis tiav polymerization, thaum lub sij hawm txoj kev loj hlob txheej txheem, cov zaj duab xis o thiab softening, ua rau cov kab tsis meej thiab txawm zaj duab xis txheej tawm, ua rau tsis zoo ua ke ntawm zaj duab xis thiab tooj liab;
Yog tias qhov raug ntau dhau lawm, nws yuav ua rau muaj teeb meem kev loj hlob, tab sis kuj nyob rau hauv cov txheej txheem electroplating yuav tsim warped tev, tsim ntawm plating.
Yog li nws yog ib qho tseem ceeb los tswj lub zog raug.
2. Cov yeeb yaj kiab siab lossis qis
Thaum cov yeeb yaj kiab siab tsawg dhau lawm, cov yeeb yaj kiab saum npoo yuav tsis sib npaug los yog qhov sib txawv ntawm cov yeeb yaj kiab qhuav thiab cov phaj tooj liab yuav tsis ua raws li qhov yuav tsum tau ua ntawm kev khi quab yuam;
Yog tias cov yeeb yaj kiab siab dhau lawm, cov kuab tshuaj thiab cov khoom tsis zoo ntawm cov txheej txheem corrosion kuj ntau dhau, ua rau cov zaj duab xis qhuav ua nkig, electroplating poob siab yuav dhau los ua cov tev.
3. Cov yeeb yaj kiab siab lossis qis qis
Yog tias cov yeeb yaj kiab kub qis dhau lawm, vim tias cov yeeb yaj kiab tiv thaiv corrosion tsis tuaj yeem ua kom muag muag thiab tsim nyog txaus, ua rau cov yeeb yaj kiab qhuav thiab tooj liab-clad laminate nto adhesion tsis zoo;
Yog hais tias qhov kub thiab txias heev vim yog evaporation ceev ntawm hnyav hnyav thiab lwm yam volatile tshuaj nyob rau hauv lub corrosion kuj npuas, thiab cov zaj duab xis qhuav yuav nkig, nyob rau hauv lub electroplating shock tsim ntawm warping tev, ua rau percolation.