Qhov loj ntawm cov khoom siv hluav taws xob tau dhau los ua nyias thiab me dua, thiab ncaj qha stacking vias ntawm qhov muag tsis pom vias yog ib txoj hauv kev tsim kom muaj kev sib txuas siab. Txhawm rau ua txoj haujlwm zoo ntawm stacking qhov, ua ntej ntawm tag nrho cov, qhov flatness ntawm hauv qab ntawm lub qhov yuav tsum ua kom zoo. Muaj ntau txoj kev tsim khoom, thiab cov txheej txheem electroplating qhov filling yog ib qho ntawm cov neeg sawv cev.
1. Qhov zoo ntawm electroplating thiab qhov filling:
(1) Nws yog qhov tsim nyog rau kev tsim cov khoom sib dhos thiab qhov ntawm lub phaj;
(2) Txhim kho hluav taws xob kev ua tau zoo thiab pab tsim cov khoom siv ntau zaus;
(3) pab kom dissipate cua sov;
(4) Lub qhov ntsaws ntsaws thiab hluav taws xob sib txuas tau ua tiav hauv ib kauj ruam;
(5) Lub qhov muag tsis pom kev yog sau nrog electroplated tooj liab, uas muaj kev ntseeg siab dua thiab zoo dua conductivity dua li cov nplaum nplaum.
2. Lub cev tsis muaj zog
Lub cev tsis zoo uas yuav tsum tau kawm muaj xws li: hom anode, qhov deb ntawm cathode thiab anode, tam sim no ceev, agitation, kub, rectifier thiab waveform, thiab lwm yam.
(1) Anode hom. Thaum nws los txog rau hom anode, nws tsis muaj dab tsi ntau tshaj li cov anode soluble thiab insoluble anode. Soluble anodes feem ntau yog cov pob tooj liab uas muaj phosphorus, uas ua rau cov av nkos anode, ua paug rau cov tshuaj plating, thiab cuam tshuam rau kev ua haujlwm ntawm cov tshuaj plating. Insoluble anode, zoo stability, tsis xav tau anode txij nkawm, tsis muaj anode av nkos tiam, haum rau mem tes los yog DC electroplating; tab sis kev noj cov additives kuj loj heev.
(2) Cathode thiab anode sib nrug. Kev tsim ntawm qhov sib txawv ntawm cov cathode thiab cov anode hauv cov txheej txheem electroplating qhov filling yog qhov tseem ceeb heev, thiab kev tsim cov khoom siv sib txawv kuj txawv. Txawm hais tias nws tsim los, nws yuav tsum tsis txhob ua txhaum Farah thawj txoj cai.
(3) Sib tov. Muaj ntau hom stirring, nrog rau txhua yam viav vias, hluav taws xob kev co, pneumatic vibration, cua stirring, dav hlau ntws thiab hais txog.
Rau electroplating qhov filling, nws yog feem ntau nyiam ntxiv lub dav hlau tsim raws li kev teeb tsa ntawm cov tsoos tooj liab lub tog raj kheej. Tus naj npawb, qhov sib nrug thiab lub kaum sab xis ntawm lub dav hlau ntawm lub dav hlau raj yog txhua yam uas yuav tsum tau xav txog hauv kev tsim ntawm lub tog raj kheej tooj liab, thiab ntau qhov kev sim yuav tsum tau ua.
(4) Tam sim no ceev thiab kub. Tsawg tam sim no ceev thiab kub tsis tshua muaj peev xwm txo tau tus nqi deposition ntawm tooj liab rau ntawm qhov chaw, thaum muab txaus Cu2 thiab brightener rau hauv lub qhov hws. Nyob rau hauv cov xwm txheej no, lub qhov filling muaj peev xwm txhim kho, tab sis lub plating efficiency kuj txo.
(5) Rectifier. Lub rectifier yog qhov txuas tseem ceeb hauv cov txheej txheem electroplating. Tam sim no, kev tshawb fawb ntawm lub qhov filling los ntawm electroplating feem ntau txwv rau tag nrho-board electroplating. Yog tias cov qauv plating qhov filling raug txiav txim siab, qhov chaw cathode yuav dhau los ua me me. Nyob rau lub sijhawm no, cov kev xav tau siab heev tau muab tso rau ntawm qhov tseeb ntawm qhov tso zis ntawm lub rectifier.Qhov tseeb ntawm cov zis ntawm lub rectifier yuav tsum raug xaiv raws li cov kab ntawm cov khoom thiab qhov loj ntawm qhov ntawm lub qhov. Qhov thinner cov kab thiab qhov me me, qhov siab dua qhov yuav tsum tau ua rau lub rectifier yuav tsum yog. Feem ntau, nws raug nquahu kom xaiv lub rectifier nrog cov zis qhov tseeb hauv 5%.
(6) Waveform. Tam sim no, los ntawm qhov kev xav ntawm waveform, muaj ob hom electroplating thiab filling qhov: mem tes electroplating thiab ncaj qha tam sim no electroplating. Cov tsoos rectifier yog siv rau ncaj qha tam sim no plating thiab lub qhov filling, uas yog ib qho yooj yim rau kev khiav lag luam, tab sis yog hais tias lub phaj yog thicker, tsis muaj dab tsi yuav ua tau. PPR rectifier yog siv rau pulse electroplating thiab lub qhov filling, thiab muaj ntau yam kev khiav hauj lwm cov kauj ruam, tab sis nws muaj zog ua muaj peev xwm rau thicker boards.
