Ngokuthuthuka okusheshayo kwamamojula wezimoto ze-elekthronikhi namandla okuxhumana, amabhodi esekethe e-foil e-ultra-thick copper engu-12oz nangaphezulu kancane kancane abe uhlobo lwamabhodi e-PCB akhethekile anamathemba amakethe abanzi, adonse ukunakwa nokunaka kwabakhiqizi ngokwengeziwe;Ngokusetshenziswa okubanzi kwe amabhodi wesifunda aphrintiwe emkhakheni we-elekthronikhi, izidingo zokusebenza zemishini ziya ngokuya zikhuphuka.Amabhodi wesifunda aphrintiwe ngeke nje anikeze uxhumo oludingekayo lukagesi kanye nokusekelwa kwemishini yezingxenye ze-elekthronikhi, kodwa futhi kancane kancane anikezwe okwengeziwe Ngemisebenzi eyengeziwe, amabhodi aphrintiwe we-ultra-thick copper angahlanganisa imithombo yamandla, anikeze ukuthembeka okuphezulu kwamanje nokuphezulu kuye kancane kancane kwanda. imikhiqizo eyakhiwe yimboni ye-PCB futhi inamathemba abanzi.

Njengamanje, abasebenzi bocwaningo kanye nentuthuko embonini bathuthukise ngempumelelo a ibhodi lesifunda eliphrintiwe kabili emaceleni enogqinsi lwethusi oluqediwe lwe-10oz ngokusebenzisa indlela enezingqimba yokujiya okulandelanayo kokucwila kwethusi elenziwe nge-electroplated + usizo lokuphrinta imaski ye-solder eminingi.Kodwa-ke, kunemibiko embalwa yokukhiqizwa kwethusi eliwugqinsi amabhodi amaningi aphrintiwe ngogqinsi lwethusi oluqediwe lwe-12oz nangaphezulu;lesi sihloko sigxile kakhulu ocwaningweni olungenzeka lwenqubo yokukhiqiza yamabhodi aphrintiwe we-multilayer wethusi angu-12oz.I-copper ewugqinsi ngesinyathelo ngesinyathelo elawulwa ubuchwepheshe bokujula obujulile + ubuchwepheshe be-lamination bokwakha, ibona ngokuphumelelayo ukucutshungulwa nokukhiqizwa kwamabhodi aphrintiwe we-multilayer wethusi angu-12oz.

Inqubo yokukhiqiza

2.1 Stack up design

Lona ungqimba olu-4, Ugqinsi lwangaphandle/lwangaphakathi lwe-cooper 12 oz, ububanzi bamaminithi/isikhala esingu-20/20mil, nqwabelana ngezansi:

2.1 Ukuhlaziywa kobunzima bokucubungula

❶ Ubuchwepheshe bokufaka ikhopha okujiyile kakhulu (ucwecwe lwethusi luwugqinsi kakhulu, kunzima ukulushutheka): thenga ucwecwe lwekhopha olukhethekile lwe-12OZ, sebenzisa ubuchwepheshe bokukhipha ukujula obuphozithivu obunegethivu obunamandla nobubi okulawulwayo ukuze ubone ukucushwa kwamasekhethi ethusi amakhulu kakhulu.

❷ Ubuchwepheshe be-lamination yethusi obukhulu kakhulu: Ubuchwepheshe besifunda sohlangothi olulodwa-okulawulwa ukujula okujulile ngokucindezela i-vacuum nokugcwalisa kusetshenziselwa ukunciphisa ngempumelelo ubunzima bokucindezela.Ngesikhathi esifanayo, isiza ukucindezelwa kwe-silicone pad + epoxy pad ukuxazulula inkinga ye-ultra-thick copper laminate Izinkinga zobuchwepheshe ezifana namabala amhlophe kanye ne-lamination.

❸ Ukulawulwa okunembayo kokuqondanisa okubili kongqimba olufanayo lwemigqa: ukukalwa kokunwetshwa nokufinyezwa ngemva kokucwenga, ukulungiswa kokunwetshwa nokufinyezwa kwesinxephezelo somugqa;ngesikhathi esifanayo, ukukhiqizwa komugqa kusebenzisa i-LDI laser imaging eqondile ukuze kuqinisekiswe ukunemba kokugqagqana kwehluzo ezimbili.

❹ Ubuchwepheshe bokumba ithusi obukhulu kakhulu: Ngokuthuthukisa isivinini sokuzungeza, isivinini sokuphakelayo, isivinini sokuhlehla, impilo yokubhoboza, njll., ukuze kuqinisekiswe ikhwalithi enhle yokumba.

2.3 Ukugeleza kwenqubo (thatha ibhodi elinezingqimba ezi-4 njengesibonelo)

2.4 Inqubo

Ngenxa ye-ultra-thick copper foil, alikho ibhodi lethusi eliwugqinsi elingu-12oz embonini.Uma ibhodi eliyinhloko liqiniswe ngokuqondile ku-12oz, i-circuit etching inzima kakhulu, futhi ikhwalithi ye-etching inzima ukuyiqinisekisa;ngesikhathi esifanayo, ubunzima bokucindezela isifunda ngemva kokubunjwa kwesikhathi esisodwa nakho kwanda kakhulu., Ibhekene nebhodlela lobuchwepheshe elikhudlwana.

Ukuze uxazulule izinkinga ezingenhla, kulokhu kucutshungulwa kwethusi okujiyile kakhulu, izinto ezikhethekile ze-copper 12oz zithengwa ngokuqondile ngesikhathi sokuklanywa kwesakhiwo.Isekhethi isebenzisa ubuchwepheshe bokujula obujulile obulawulwa isinyathelo ngesinyathelo, okungukuthi, ucwecwe lwethusi luqoshwa kuqala ukujiya okungu-1/2 ohlangothini olungemuva → icindezelwe ukuze kwakhiwe umgogodla wethusi owugqinsi Ibhodi → ukunamathisela ngaphambili ukuze kutholwe ungqimba lwangaphakathi. iphethini yesifunda.Ngenxa ye-etching yesinyathelo ngesinyathelo, ubunzima bokudweba buyancishiswa kakhulu, futhi ubunzima bokucindezela buyancipha.

❶ Idizayini yefayela lomugqa
Amasethi amabili wamafayela enzelwe ungqimba ngalunye lwesekethe.Ifayela lokuqala elinegethivu lidinga ukufakwa isibuko ukuze kuqinisekiswe ukuthi isifunda sisesimweni esifanayo ngesikhathi sokulawula okuya phambili/okuhlehlayo kokushona okujulile, futhi ngeke kube khona ukungahambi kahle.

❷ Buyisela emuva lawula ukushumeka okujulile kwemifanekiso yesifunda

❸ Ukulawula ukunemba kwesithombe sesekhethi yesibili
Ukuze kuqinisekiswe ukuhambisana kwemigqa emibili, inani lokunwetshwa nokufinyela kufanele lilinganiswe ngemva kwe-lamination yokuqala, futhi ukunwetshwa komugqa kanye nesinxephezelo sokunciphisa kufanele kulungiswe;ngesikhathi esifanayo,

Ukuqondanisa okuzenzakalelayo kwe-LDI imaging laser kuthuthukisa ngempumelelo ukunemba kokuqondanisa.Ngemuva kokwenza kahle, ukunemba kokuqondanisa kungalawulwa ngaphakathi kwama-25um.

❹ Ukulawula ikhwalithi yokushumeka ikhopha ewugqinsi
Ukuze kuthuthukiswe ikhwalithi yokushumeka yamasekhethi ethusi anogqinsi kakhulu, izindlela ezimbili zokukhipha i-alkaline kanye ne-acid etching zisetshenziswe ekuhlolweni kokuqhathanisa.Ngemva kokuqinisekisa, isekethe ene-asidi inamabhula amancane kanye nokunemba kobubanzi bomugqa ophakeme, okungahlangabezana nezidingo zokushumeka zethusi eliwugqinsi kakhulu.Umphumela uboniswa kuThebula 1.

Ngezinzuzo ze-etching ejulile elawulwa ngesinyathelo ngesinyathelo, nakuba ubunzima be-lamination buye bancishiswa kakhulu, uma indlela evamile isetshenziselwa i-lamination, isabhekene nezinkinga eziningi, futhi kulula ukukhiqiza izinkinga zekhwalithi ezifihliwe ezifana ne-lamination. amabala amhlophe kanye lamination delamination.Ngenxa yalesi sizathu, ngemva kokuhlolwa kokuqhathanisa kwenqubo, ukusetshenziswa kwe-silicone pad pressing kunganciphisa amabala amhlophe a-laminating, kodwa indawo yebhodi ayilingani nokusabalalisa kwephethini, okuthinta ukubukeka kanye nekhwalithi yefilimu;uma i-epoxy pad nayo isizwa, ikhwalithi yokucindezela ithuthukiswa kakhulu, Ingakwazi ukuhlangabezana nezidingo ezicindezelayo zethusi eliwugqinsi.

❶ Indlela yethusi ewugqinsi kakhulu

❷ Ikhwalithi ye-laminate yethusi ewugqinsi

Uma ubheka isimo sezingcezu ezinqanyuliwe, isifunda sigcwaliswa ngokugcwele, ngaphandle kwama-bubbles ama-micro-slit, futhi yonke ingxenye ejulile ejulile igxilile ku-resin;ngasikhathi sinye, ngenxa yenkinga ye-ultra-thick copper side etching, ububanzi bomugqa ongaphezulu bukhulu kakhulu kunobubanzi bomugqa omncane phakathi nendawo Cishe u-20um, lo mumo ufana "nesitebhisi esihlanekezelwe", esizothuthukisa nakakhulu ukubamba kokucindezela, okuyisimangaliso.

❷ Ubuchwepheshe bokwakha ithusi obukhulu kakhulu

Kusetshenziswa ubuchwepheshe bokujula obujule ngesinyathelo obubalulwe ngenhla + inqubo ye-lamination, izendlalelo zingangezwa ngokulandelana ukuze kuqashelwe ukucutshungulwa kanye nokukhiqizwa kwamabhodi aphrintiwe e-ultra-thick yethusi;ngesikhathi esifanayo, lapho ungqimba lwangaphandle lwenziwa, ukujiya kwethusi kumayelana ne-approx kuphela.I-6oz, ebangeni lenqubo ye-mask ye-solder evamile, inciphisa kakhulu ubunzima benqubo yokukhiqiza imaski ye-solder futhi ifinyeze umjikelezo wokukhiqiza imaski ye-solder.

Imingcele yokumba ithusi ewugqinsi

Ngemuva kokucindezela okuphelele, ubukhulu bepuleti eliqediwe lingu-3.0mm, futhi ubukhulu bekhopha bufinyelela ku-160um, okwenza kube nzima ukubhola.Ngalesi sikhathi, ukuze kuqinisekiswe ikhwalithi yokumba, imingcele yokubhoboza yalungiswa ngokukhethekile endaweni.Ngemuva kokwenza kahle, ukuhlaziya ucezu kubonise ukuthi ukubhoboza akunasici njengamakhanda ezinzipho nezimbobo ezimahhadla, futhi umphumela muhle.

Isifinyezo
Ngocwaningo lwenqubo kanye nokuthuthukiswa kwebhodi eliphrintiwe le-ultra-thick copper multilayer, kusetshenziswa ubuchwepheshe be-etching obujulile obulawulwayo obuhle futhi obungalungile, futhi i-silicone pad + epoxy pad isetshenziselwa ukuthuthukisa ikhwalithi ye-lamination ngesikhathi sokulayishwa, okuxazulula ngempumelelo ubunzima bokufaka isekethe yethusi ewugqinsi kakhulu Izinkinga zobuchwepheshe ezivamile embonini, njengezindawo ezimhlophe ze-laminate eziwugqinsi kanye nokunyathelisa okuningi kwe-mask ye-solder, ziye zaqaphela ngempumelelo ukucubungula nokukhiqizwa kwamabhodi aphrintiwe we-ultra-thick yethusi;ukusebenza kwayo kuqinisekisiwe ukuthi ithembekile, futhi iye yanelisa isidingo esikhethekile samakhasimende samanje.

❶ Isinyathelo nesinyathelo lawula ubuchwepheshe bokufaka ukujula kwemigqa emihle nemibi: ukuxazulula ngempumelelo inkinga yokushumeka komugqa wethusi owugqinsi;
❷ Ubuchwepheshe bokulawula ukunemba kokuqondanisa komugqa okuhle nokubi: ukuthuthukisa ngempumelelo ukunemba kokugqagqana kwezithombe ezimbili;
❸ Ubuchwepheshe be-lamination bokwakha ithusi obugqinsile kakhulu: bubona ngokuphumelelayo ukucutshungulwa nokukhiqizwa kwamabhodi aphrintiwe we-multilayer yethusi.

Isiphetho
Amabhodi aphrintiwe ekhopha anogqinsi kakhulu asetshenziswa kakhulu kumamojula okulawula amandla emishini emikhulu ngenxa yokusebenza kwawo okudlulele kwamanje.Ikakhulukazi ngokuthuthukiswa okuqhubekayo kwemisebenzi ebanzi, amabhodi aphrintiwe ethusi anogqinsi azobhekana namathemba emakethe abanzi.Lesi sihloko singesereferensi nereferensi nje kontanga.