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Zinthu zingapo Zoyambira Zomwe Zimakhudza Njira Yodzaza Mabowo a Electroplating mu PCB Production

  • 2022-05-16 18:32:32
Mtengo wotulutsa wamakampani apadziko lonse a electroplating PCB wakula kwambiri pamtengo wokwanira wamakampani opanga zida zamagetsi.Ndi makampani omwe ali ndi gawo lalikulu kwambiri pamakampani ogawa magawo amagetsi ndipo ali ndi udindo wapadera.Mtengo wapachaka wa electroplating PCB ndi madola 60 biliyoni aku US.Voliyumu ya mankhwala pakompyuta akukhala mochulukira woonda ndi lalifupi, ndi stacking mwachindunji vias pa kudzera-akhungu ndi kamangidwe njira kupeza mkulu-kachulukidwe interconnection.Kuti mupange dzenje labwino, choyamba, kutsetsereka kwa dzenje kuyenera kuchitidwa bwino.Pali njira zingapo zopangira dzenje lathyathyathya pamwamba, ndipo njira yodzaza dzenje la electroplating ndiyoyimilira.

Kuphatikiza pa kuchepetsa kufunikira kwa chitukuko chowonjezera, njira yopangira ma electroplating ndi kudzaza dzenje imagwirizananso ndi zida zamakono, zomwe zimathandiza kupeza kudalirika kwabwino.

Kudzaza dzenje la Electroplating kuli ndi zabwino izi:

(1) Ndizopindulitsa kupanga Stacked ndi Via.on.Pad ( HDI Circuit Board );

(2) Kupititsa patsogolo ntchito zamagetsi ndi chithandizo mapangidwe apamwamba-pafupipafupi ;

(3) Imathandiza kuchotsa kutentha;

(4) Bowo la pulagi ndi kulumikiza magetsi kumatsirizidwa mu sitepe imodzi;

(5) Mabowo akhungu amadzazidwa ndi electroplated mkuwa, amene ali apamwamba kudalirika ndi madutsidwe bwino kuposa guluu conductive.



Zosintha Zathupi

Zofunikira zakuthupi zomwe zikuyenera kuphunziridwa ndi: mtundu wa anode, malo a cathode-anode, kachulukidwe wapano, kugwedezeka, kutentha, kukonzanso ndi mawonekedwe a waveform, ndi zina zambiri.

(1) Mtundu wa anode.Zikafika pamitundu ya anode, sichinthu choposa ma anode osungunuka ndi ma anode osasungunuka.Manode osungunuka nthawi zambiri amakhala mipira yamkuwa yokhala ndi phosphorous, yomwe imakhala yosavuta kutulutsa matope a anode, kuipitsa njira yopangira plating, komanso kukhudza magwiridwe antchito a plating solution.Manode osasungunuka, omwe amadziwikanso kuti inert anodes, nthawi zambiri amakhala ndi titaniyamu mesh yokutidwa ndi osakaniza osakaniza a tantalum ndi zirconium.Anode osasungunuka, kukhazikika bwino, kukonza kwa anode, palibe matope a anode, oyenera kugunda kapena DC electroplating;komabe, kumwa zowonjezera ndi kwakukulu.

(2) Mtunda pakati pa cathode ndi anode.Mapangidwe apakati pakati pa cathode ndi anode mu electroplating kudzera pakudzaza ndikofunika kwambiri, komanso mapangidwe a zida zamitundu yosiyanasiyana ndi osiyana.Komabe, ziyenera kunenedwa kuti ziribe kanthu momwe zinapangidwira, siziyenera kuphwanya lamulo loyamba la Fara.

(3) Kusonkhezera.Pali mitundu yambiri ya kugwedeza, monga kugwedezeka kwa makina, kugwedezeka kwa magetsi, kugwedezeka kwa gasi, kugwedeza mpweya, Eductor ndi zina zotero.

Pakupanga ma electroplating ndi kudzaza, nthawi zambiri amakonda kukulitsa kapangidwe ka jet kutengera kasinthidwe ka silinda yachikhalidwe yamkuwa.Komabe, kaya ndi ndege yapansi kapena ndege yam'mbali, momwe mungakonzekere chubu cha jet ndi chubu choyambitsa mpweya mu silinda;ndi kayendedwe ka jet pa ola;ndi mtunda wotani pakati pa chubu cha jet ndi cathode;ngati ndege yam'mbali ikugwiritsidwa ntchito, ndegeyo ili pa anode Front kapena kumbuyo;ngati jeti yapansi ikugwiritsidwa ntchito, idzayambitsa kugwedezeka kosagwirizana, ndipo njira yothetsera vutoli idzagwedezeka mofooka mmwamba ndi pansi;Kuchita mayeso ambiri.

Kuonjezera apo, njira yabwino kwambiri ndiyo kugwirizanitsa chubu chilichonse cha jet ku mita yothamanga, kuti mukwaniritse cholinga choyang'anira kuyenda.Chifukwa cha kutuluka kwakukulu kwa jet, yankho limakonda kutentha, choncho kuwongolera kutentha n'kofunikanso.

(4) Kachulukidwe ndi kutentha kwapano.Kachulukidwe kakang'ono kapano komanso kutentha pang'ono kumatha kuchepetsa kuchuluka kwa mkuwa wapamtunda, kwinaku akupereka Cu2 yokwanira ndi chowunikira mu dzenje.Pansi pazimenezi, mphamvu yodzaza dzenje imakulitsidwa, koma platting imachepetsedwanso.

(5) Wokonzanso.The rectifier ndi ulalo wofunika mu njira electroplating.Pakadali pano, kafukufuku wa electroplating ndi kudzaza nthawi zambiri amangokhala ndi ma electroplating a board.Ngati chitsanzo cha electroplating ndi kudzazidwa kumaganiziridwa, dera la cathode lidzakhala laling'ono kwambiri.Panthawiyi, zofunikira zazikulu zimayikidwa patsogolo kuti ziwongoleredwe bwino.

Kusankhidwa kwa kutulutsa kolondola kwa chowongolera kuyenera kutsimikiziridwa molingana ndi mzere wazinthu komanso kukula kwa dzenje.Mizere yopyapyala komanso mabowo ang'onoang'ono, ndiye kuti zofunikira zowongolera ziyenera kukhala zapamwamba.Nthawi zambiri, ndikofunikira kusankha chowongolera ndi kulondola kotulutsa mkati mwa 5%.Kusankha chowongolera chomwe chili cholondola kwambiri kumawonjezera ndalama pazida.Mukayika chingwe chotulutsa chowongolera, choyamba ikani chowongolera m'mphepete mwa thanki yoyikira momwe mungathere, zomwe zingachepetse kutalika kwa chingwe chotulutsa ndikuchepetsa nthawi yokwera ya pulse pano.Kusankhidwa kwa chiwongolero cha chingwe chowongolera kuyenera kukumana ndi kutsika kwamagetsi kwa chingwe chotulutsa mkati mwa 0.6V pa 80% yazomwe zimatulutsa pano.Nthawi zambiri, chingwe cholumikizira chagawo chimawerengedwa molingana ndi mphamvu yonyamulira ya 2.5A/mm:.Ngati gawo laling'ono la chingwecho ndi laling'ono kwambiri, kutalika kwa chingwe kumakhala kotalika kwambiri, kapena kutsika kwa voteji kumakhala kwakukulu, kufalikira kwapano sikungafike pamtengo womwe ukufunika kuti upangidwe.

Kwa thanki yopukutira yokhala ndi thanki yokulirapo kuposa 1.6m, njira yodyetsera mphamvu yamayiko awiri iyenera kuganiziridwa, komanso kutalika kwa zingwe zamayiko awiriwo kuyenera kukhala kofanana.Mwanjira imeneyi, cholakwika chapanopa chikhoza kutsimikiziridwa kuti chiwongoleredwe mumtundu wina.Chowongolera chiyenera kulumikizidwa kumbali zonse ziwiri za flybar iliyonse ya thanki yopukutira, kuti zomwe zili mbali ziwiri za chidutswa zitha kusinthidwa padera.

(6) Waveform.Pakalipano, kuchokera pamawonekedwe a waveform, pali mitundu iwiri ya electroplating ndi kudzaza: pulse electroplating ndi DC electroplating.Njira ziwiri izi za electroplating ndi kudzaza dzenje zaphunziridwa.Chowongolera chachikhalidwe chimagwiritsidwa ntchito popanga ma electroplating a DC ndi kudzaza mabowo, komwe kumakhala kosavuta kugwiritsa ntchito, koma ngati mbaleyo ili yokhuthala, palibe chomwe chingachitike.PPR rectifier imagwiritsidwa ntchito popanga ma pulse electroplating ndi kudzaza dzenje, komwe kumakhala ndi njira zambiri zogwirira ntchito, koma kumakhala ndi kuthekera kolimba kwa ma board okulirapo.



Mphamvu ya gawo lapansi

Mphamvu ya gawo lapansi pa electroplating ndi kudzaza dzenje silinganyalanyazidwe.Nthawi zambiri, pali zinthu monga dielectric wosanjikiza zakuthupi, mawonekedwe a dzenje, chiŵerengero cha mawonekedwe, ndi plating yamkuwa yamankhwala.

(1) Dielectric wosanjikiza zinthu.Zida za dielectric wosanjikiza zimakhudza kudzaza dzenje.Zothandizira zopanda magalasi ndizosavuta kudzaza mabowo kuposa zolimbitsa magalasi.Dziwani kuti magalasi CHIKWANGWANI protrusions mu dzenje ndi zotsatira zoipa pa mankhwala mkuwa.Pachifukwa ichi, vuto la kudzaza dzenje la electroplating ndikuwongolera kumamatira kwa mbewu zopanda ma electroless plating, m'malo modzaza dzenje lokha.

M'malo mwake, ma electroplating ndi kudzaza mabowo pamagalasi olimbitsa magalasi agwiritsidwa ntchito popanga kwenikweni.

(2) Chiŵerengero cha mbali.Pakalipano, teknoloji yodzaza dzenje pamabowo amitundu yosiyanasiyana ndi makulidwe amayamikiridwa kwambiri ndi onse opanga ndi opanga.Kutha kudzaza dzenje kumakhudzidwa kwambiri ndi makulidwe a dzenje mpaka m'mimba mwake.Kunena zoona, machitidwe a DC amagwiritsidwa ntchito kwambiri pazamalonda.Popanga, kukula kwa dzenje kudzakhala kocheperako, nthawi zambiri m'mimba mwake ndi 80pm ~ 120Bm, kuya kwa dzenje ndi 40Bm ~ 8OBm, ndipo kuchuluka kwa m'mimba mwake sikudutsa 1: 1.

(3) Wosanjikiza wa mkuwa wopanda magetsi.Makulidwe ndi kufananiza kwakusanjika kwa mkuwa wopanda electroless ndi nthawi yoyimilira pambuyo pakupanga mkuwa wopanda ma electroless zonse zimakhudza magwiridwe antchito a dzenje.Mkuwa wopanda magetsi ndi woonda kwambiri kapena uli ndi makulidwe osagwirizana, ndipo kudzaza dzenje kwake kumakhala koyipa.Nthawi zambiri, tikulimbikitsidwa kudzaza mabowo pamene makulidwe a mkuwa wamankhwala ndi> 0.3pm.Komanso, makutidwe ndi okosijeni wa mankhwala mkuwa amakhalanso ndi zotsatira zoipa pa dzenje kudzaza kwenikweni.

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