High precision Circuit Court board hais txog kev siv cov kab dav dav / qhov sib txawv, qhov me me, qhov dav dav dav (lossis tsis muaj lub nplhaib dav), thiab faus thiab qhov muag tsis pom qhov kom ua tiav qhov siab ceev.Thiab siab precision txhais tau hais tias qhov tshwm sim ntawm "nyias, me, nqaim, nyias" yuav inevitably nqa high precision yuav tsum, coj cov kab dav raws li piv txwv: O. 20mm kab dav, raws li cov kev cai los tsim O. 16 ~ 0.24mm yog tsim nyog, qhov yuam kev yog (O.20 ± 0.04) mm;thiab O. Rau txoj kab dav ntawm 10 hli, qhov yuam kev yog (0.10 ± 0.02) hli.Obviously, qhov tseeb ntawm tom kawg yog ob npaug, thiab yog li ntawd tsis yooj yim rau kev nkag siab, yog li cov kev cai siab-precision yuav tsis sib tham.Tab sis nws yog ib qho teeb meem tseem ceeb hauv kev tsim khoom siv tshuab. 
(1) Kev siv hluav taws xob zoo
Lub neej yav tom ntej siab zoo hlau dav / qhov sib txawv yuav raug hloov ntawm 0.20mm-O.13mm-0.08mm-0.005mm tuaj yeem ua tau raws li qhov yuav tsum tau muaj ntawm SMT thiab ntau lub nti pob (Multichip Package, MCP).Yog li ntawd, cov txheej txheem hauv qab no yuav tsum tau ua.
①Siv nyias los yog ultra-thin copper foil (<18um) substrate thiab zoo nto kho tshuab. ② Kev siv cov yeeb yaj kiab nyias nyias thiab cov txheej txheem ntub dej, cov yeeb yaj kiab nyias thiab zoo zoo tuaj yeem txo cov kab dav distortion thiab tsis xws luag.Cov lamination ntub dej tuaj yeem ua rau cov pa me me, ua rau muaj kev sib txuas ntawm lub ntsej muag, thiab txhim kho cov xaim kev ncaj ncees thiab raug. ③ Siv electrodeposited photoresist zaj duab xis (Electro-deposited Photoresist, ED).Nws cov tuab tuaj yeem tswj tau nyob rau hauv thaj tsam ntawm 5-30 / um, uas tuaj yeem tsim cov xov hlau zoo tshaj plaws, tshwj xeeb tshaj yog tsim rau lub nplhaib nqaim, tsis muaj lub nplhaib dav thiab tag nrho-board electroplating.Tam sim no, muaj ntau tshaj kaum ED cov kab ntau lawm hauv ntiaj teb. ④ Siv cov tshuab hluav taws xob sib xyaw ua ke.Txij li thaum lub teeb pom kev sib luag tuaj yeem kov yeej qhov cuam tshuam ntawm kab dav qhov sib txawv los ntawm oblique lub teeb ntawm "point" lub teeb ci, cov xov hlau zoo nrog cov kab dav dav dav thiab cov npoo huv tuaj yeem tau txais.Txawm li cas los xij, cov khoom siv sib xyaw ua ke yog kim, xav tau kev nqis peev siab, thiab xav tau kev ua haujlwm hauv qhov chaw huv huv. ⑤ Txais kev siv tshuab kho qhov muag tsis siv neeg (Auto Optical Inspection, AOI).Cov thev naus laus zis no tau dhau los ua ib qho tseem ceeb ntawm kev tshawb nrhiav hauv kev tsim cov xov hlau zoo, thiab tau nce sai, siv thiab tsim.Piv txwv li, AT&T tuam txhab muaj 11 AoIs, thiab}tadco Company muaj 21 AoIs tshwj xeeb uas siv los ntes cov duab ntawm txheej sab hauv. (2) Microvia technology
Lub qhov ua haujlwm ntawm cov ntawv luam tawm siv rau saum npoo av feem ntau ua lub luag haujlwm ntawm kev sib txuas hluav taws xob, uas ua rau daim ntawv thov ntawm microvia technology tseem ceeb dua.Siv cov khoom siv tho me me thiab CNC drilling tshuab los tsim cov qhov me me muaj ntau qhov tsis ua tiav thiab cov nqi siab.Yog li ntawd, qhov ntom ntawm cov ntawv luam tawm feem ntau yog vim qhov ntom ntom ntawm cov xov hlau thiab cov ntaub qhwv.Txawm hais tias tau ua tiav cov txiaj ntsig zoo, nws lub peev xwm raug txwv.Txhawm rau txhim kho qhov ntom ntom (xws li cov xov hlau tsawg dua 0.08mm), tus nqi yog ceev.litres, yog li tig mus rau kev siv cov micropores los txhim kho densification.
Nyob rau hauv xyoo tas los no, kev ua tiav tau ua tiav hauv CNC drilling tshuab thiab micro-drill tshuab, yog li micro-qhov tshuab tau tsim sai heev.Qhov no yog qhov tseem ceeb tshaj plaws hauv kev tsim khoom PCB tam sim no.Nyob rau hauv lub neej yav tom ntej, thev naus laus zis ntawm kev tsim cov qhov me me yuav tsuas yog vam khom CNC drilling tshuab thiab zoo heev me me taub hau, thaum lub qhov tsim los ntawm laser technology tseem qis dua cov tsim los ntawm CNC drilling tshuab los ntawm qhov pom ntawm tus nqi thiab qhov zoo. . ① CNC drilling tshuab Tam sim no, thev naus laus zis ntawm CNC drilling tshuab tau ua tiav tshiab thiab kev vam meej.Thiab tsim ib lub cim tshiab ntawm CNC drilling tshuab yam ntxwv los ntawm drilling qhov me me.Kev ua tau zoo ntawm qhov drilling me me (tsawg dua 0.50mm) los ntawm lub tshuab micro-qhov drilling yog 1 zaug siab dua li ntawm cov pa CNC drilling tshuab, nrog tsawg dua kev ua haujlwm, thiab kev sib hloov ceev yog 11-15r / min;Nws tuaj yeem laum O. 1 ~ 0.2mm micro-qhov, cov khoom siv zoo me me nrog cov ntsiab lus cobalt siab, thiab peb daim hlau (1.6mm / block) tuaj yeem muab tso rau hauv qhov drilling.Thaum lub laum me ntsis puas lawm, nws tuaj yeem nres thiab tshaj tawm txoj haujlwm, tuaj yeem hloov lub laum me ntsis thiab tshawb xyuas txoj kab uas hla (cov cuab yeej xov xwm tuaj yeem ua tau ntau pua daim), thiab tuaj yeem tswj tau qhov kev ncua deb ntawm lub laum taub thiab lub hau. phaj thiab qhov tob drilling, yog li qhov muag tsis pom qhov tuaj yeem raug drilled., thiab yuav tsis ua puas lub countertop.Lub CNC drilling tshuab lub rooj txais cov cua cushion thiab magnetic floating hom, uas txav sai dua, sib dua thiab meej dua, thiab yuav tsis khawb lub rooj.Xws li kev xyaum xovxwm tam sim no nyob rau hauv cov khoom tsis txaus, xws li Mega 4600 los ntawm Prute hauv ltalis, ExcelIon 2000 series hauv Tebchaws Meskas, thiab cov khoom tsim tshiab los ntawm Switzerland thiab Lub Tebchaws Yelemees. ② Muaj tseeb muaj ntau yam teeb meem nrog laser drilling pa CNC drilling tshuab thiab xyaum xyaum qhov me me.Nws tau cuam tshuam qhov kev nce qib ntawm micro qhov thev naus laus zis, yog li laser qhov etching tau them nyiaj mloog, kev tshawb fawb thiab kev siv.Tab sis muaj qhov tsis zoo rau kev tuag, uas yog, tsim ntawm lub qhov taub, uas yog aggravated nrog nce ntawm phaj thickness.Ntxiv nrog rau cov pa phem ntawm qhov kub thiab txias ablation (tshwj xeeb tshaj yog ntau txheej boards), lub neej thiab kev saib xyuas ntawm lub teeb ci, qhov rov ua dua ntawm qhov etching thiab tus nqi, kev nce qib thiab kev siv cov micro qhov hauv kev tsim cov ntawv luam tawm muaj. tau txwv.Txawm li cas los xij, laser ablation tseem siv nyob rau hauv nyias thiab high-density microplates, tshwj xeeb tshaj yog nyob rau hauv high-density interconnect (HDI) technology ntawm MCM-L, xws li M. c.Nws tau raug siv nyob rau hauv high-density interconnection combining polyester zaj duab xis etching nyob rau hauv Ms thiab hlau deposition (sputtering txheej txheem).faus los ntawm kev tsim nyob rau hauv high-density interconnect multilayer boards nrog faus thiab qhov muag tsis pom ntawm cov qauv kuj yuav siv tau.Txawm li cas los xij, vim yog kev txhim kho thiab thev naus laus zis ntawm CNC drilling tshuab thiab cov khoom siv me me, lawv tau nce sai thiab siv tau.Yog li lub laser drilled qhov ntawm qhov chaw Daim ntawv thov nyob rau hauv mounted Circuit Court boards tsis tuaj yeem tsim dominance.Tab sis nws tseem muaj qhov chaw nyob hauv ib qho chaw. ③ Kev siv tshuab faus, qhov muag tsis pom thiab los ntawm qhov kev sib xyaw ua ke ntawm kev faus, qhov muag tsis pom kev thiab los ntawm lub qhov tshuab kuj yog ib txoj hauv kev tseem ceeb los txhim kho lub siab ceev ntawm cov ntawv luam tawm.Feem ntau, faus thiab dig muag vias yog qhov me me.Ntxiv nrog rau kev nce cov xov tooj ntawm lub rooj tsavxwm, faus thiab qhov muag tsis pom vias yog sib cuam tshuam ntawm "ze" cov txheej sab hauv, uas txo cov naj npawb ntawm cov qhov tsim, thiab qhov teeb tsa ntawm qhov kev sib cais disc kuj tseem yuav txo tau cov naj npawb ntawm cov qhov. vias.Kev txo qis, yog li ua kom cov xov tooj muaj txiaj ntsig zoo thiab kev sib cuam tshuam ntawm interlayer hauv lub rooj tsavxwm, thiab txhim kho cov kev sib txuas siab ntawm kev sib tshuam.Yog li ntawd, cov txheej txheem ntau txheej nrog kev sib xyaw ua ke ntawm faus, qhov muag tsis pom thiab dhau ntawm lub qhov yog tsawg kawg yog 3 zaug siab dua li cov qauv ntawm txhua qhov-dhau-qhov board qauv nyob rau hauv tib qhov loj thiab cov txheej txheem.Qhov loj ntawm cov ntawv luam tawm ua ke nrog los ntawm qhov yuav raug txo kom tsawg lossis cov txheej txheem yuav raug txo kom tsawg.Yog li ntawd, nyob rau hauv high-density nto mount printed boards, faus thiab dig muag ntawm technologies yog nce siv, tsis tsuas yog nyob rau hauv nto mount printed boards nyob rau hauv loj computers, khoom siv sib txuas lus, thiab lwm yam, tab sis kuj nyob rau hauv pej xeem thiab kev siv.Nws kuj tau siv dav hauv kev lag luam, thiab txawm tias nyob rau hauv qee lub rooj tsav tsheb nyias, xws li cov laug cam uas muaj ntau tshaj li rau 6 txheej ntawm PCMCIA, Ntse, IC phaib, thiab lwm yam. Cov luam ntawv Circuit Court boards nrog faus thiab qhov muag tsis pom qhov Cov txheej txheem feem ntau ua tiav los ntawm "split board" txoj kev tsim khoom, uas txhais tau hais tias nws tsuas tuaj yeem ua tiav tom qab ntau zaus ntawm kev nias, drilling, qhov plating, thiab lwm yam, yog li qhov tseeb qhov chaw tseem ceeb heev.. 
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