Dab tsi yog PCB Electroplating Filling Txheej Txheem

Qhov ntim ntawm cov khoom siv hluav taws xob tau dhau los ua ntau dua thiab nyias thiab luv luv, thiab qhov ncaj qha stacking ntawm vias ntawm qhov muag tsis pom vias yog ib txoj hauv kev tsim kom tau txais kev sib txuas ntawm qhov siab. Txhawm rau ua haujlwm zoo ntawm stacking qhov, ua ntej ntawm tag nrho cov, qhov flatness ntawm lub qhov hauv qab yuav tsum ua kom zoo. Muaj ntau ntau txoj hauv kev, 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 zoo rau kev tsim cov pob qhov thiab cov qhov ntawm lub disk;

(2) Txhim kho hluav taws xob kev ua tau zoo thiab ua rau muaj kev tsim 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 muaj cov electroplated tooj liab, uas muaj kev ntseeg siab dua thiab zoo dua conductivity dua li cov kua nplaum.

2. Lub cev tsis muaj zog

Cov yam ntxwv ntawm lub cev uas yuav tsum tau kawm yog: hom anode, cathode thiab anode spacing, tam sim no ceev, agitation, kub, rectifier thiab waveform, thiab lwm yam.

(1) hom anode. Thaum nws los txog rau hom anode, nws tsis muaj dab tsi ntau tshaj li soluble anodes thiab insoluble anodes. Soluble anodes feem ntau yog phosphorus-muaj tooj liab pob, uas yog ib qho yooj yim los tsim anode slime, pollute lub plating tov, thiab cuam tshuam rau kev ua tau zoo ntawm cov tshuaj plating. Insoluble anode, zoo stability, tsis xav tau kev kho anode, tsis muaj anode sludge, haum rau pulse los yog DC electroplating; tab sis kev noj cov additives yog loj.

(2) Qhov sib txawv ntawm cathode thiab anode. Qhov sib txawv tsim ntawm cathode thiab anode hauv electroplating ntawm cov txheej txheem filling yog qhov tseem ceeb heev, thiab kev tsim cov khoom siv sib txawv kuj txawv. Txawm hais tias nws tsim los li cas, nws yuav tsum tsis txhob ua txhaum Fara thawj txoj cai.

(3) Sib tov. Muaj ntau hom kev nplawm, xws li kev sib tsoo tshuab, hluav taws xob vibration, roj vibration, cua stirring, dav hlau ntws, thiab lwm yam.

Rau electroplating thiab lub qhov filling, nws yog feem ntau nyiam kom nce 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 ntsuam xyuas kuj tseem yuav tsum tau ua.

(4) Tam sim no ceev thiab kub. Low tam sim no ceev thiab qhov kub tsawg tuaj yeem txo tus nqi tso nyiaj ntawm tooj liab, thaum muab cov CU2 thiab Brightenter txaus rau hauv lub qhov. Nyob rau hauv cov xwm txheej no, lub qhov filling muaj peev xwm txhim kho, tab sis cov 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 electroplating thiab filling yog feem ntau txwv rau tag nrho-board electroplating. Yog tias cov qauv electroplating thiab filling raug txiav txim siab, qhov chaw cathode yuav dhau los ua me me. Lub sijhawm no, cov kev xav tau siab tau muab tso rau pem hauv ntej rau cov zis precision ntawm lub rectifier.

Kev xaiv ntawm cov zis precision ntawm lub rectifier yuav tsum tau txiav txim siab raws li txoj kab ntawm cov khoom thiab qhov loj ntawm lub qhov ntawm lub qhov. Lub thinner cov kab thiab qhov me me ntawm qhov, qhov siab dua qhov yuav tsum tau muaj ntawm lub rectifier yuav tsum yog. Feem ntau, nws raug nquahu kom xaiv lub rectifier nrog cov zis qhov tseeb hauv 5 feem pua.

(6) Waveform. Tam sim no, los ntawm qhov kev xav ntawm waveform, muaj ob hom electroplating thiab filling: mem tes electroplating thiab DC electroplating. Cov tshuaj rectifier yog siv rau DC electroplating thiab lub qhov filling, uas yog ib qho yooj yim rau kev khiav lag luam, tab sis yog hais tias lub phaj yog thicker, nws yuav ua tsis tau. PPR rectifier yog siv rau pulse electroplating thiab lub qhov filling, uas muaj ntau yam kev khiav hauj lwm cov kauj ruam, tab sis muaj zog ua muaj peev xwm rau thicker nyob rau hauv cov txheej txheem boards.