Nrog rau kev loj hlob sai ntawm cov khoom siv hluav taws xob thiab hluav taws xob sib txuas lus, ultra-thick tooj liab ntawv ci Circuit Court boards ntawm 12oz thiab saum toj no tau maj mam dhau los ua ib yam tshwj xeeb PCB boards nrog rau kev lag luam dav dav, uas tau nyiam ntau thiab ntau tus neeg tsim khoom thiab kev saib xyuas;Nrog rau kev siv dav ntawm luam tawm Circuit Boards nyob rau hauv cov khoom siv hluav taws xob, kev ua haujlwm ntawm cov khoom siv tau nce siab thiab siab dua.Cov ntawv luam tawm Circuit Court boards yuav tsis tsuas yog muab kev sib txuas hluav taws xob tsim nyog thiab kev txhawb zog rau cov khoom siv hluav taws xob, tab sis kuj maj mam muab ntxiv Ntxiv nrog rau kev ua haujlwm ntxiv, cov ntawv luam tawm ultra-thick tooj liab uas tuaj yeem sib xyaw cov khoom siv hluav taws xob, muab cov khoom siv hluav taws xob siab thiab kev ntseeg siab tau maj mam nrov. cov khoom tsim los ntawm PCB kev lag luam thiab muaj kev cia siab dav.

Tam sim no, kev tshawb fawb thiab kev txhim kho cov neeg ua haujlwm hauv kev lag luam tau ua tiav ib qho kev ua tiav ob-sided luam ntawv Circuit Court board nrog ib tug tiav tooj liab thickness ntawm 10oz los ntawm txheej txheej txheej ntawm successive thickening ntawm electroplated tooj liab dab dej + ntau yam solder mask printing pab.Txawm li cas los xij, muaj ob peb tsab ntawv ceeb toom txog kev tsim cov tooj liab ultra-thick multilayer printed boards nrog ib tug tiav tooj liab thickness ntawm 12oz thiab saum toj no;tsab xov xwm no tsuas yog tsom rau txoj kev tshawb fawb txog kev tsim khoom ntawm 12oz ultra-tick tooj liab multilayer luam ntawv boards.Thick tooj liab step-by-step tswj sib sib zog nqus etching tshuab + tsim-up lamination tshuab, zoo paub txog kev ua thiab zus tau tej cov 12oz ultra-thick tooj liab multilayer luam boards.

Kev tsim khoom

2.1 Stack up design

Qhov no yog 4 txheej, Sab nrauv / sab hauv cooper thicknesss 12 oz, min dav / qhov chaw 20/20mil, pawg li hauv qab no:

2.1 Kev soj ntsuam ntawm kev ua haujlwm nyuaj

❶ Ultra-thick tooj liab etching thev naus laus zis (copper foil yog ultra-thick, nyuaj rau etch): yuav khoom tshwj xeeb 12OZ tooj liab ntawv ci, txais yuav qhov zoo thiab tsis zoo tswj kev sib sib zog nqus etching tshuab kom paub qhov etching ntawm ultra-thick tooj liab circuits.

❷ Ultra-thick tooj liab lamination tshuab: Cov cuab yeej siv hluav taws xob ib leeg-tswj sib sib zog nqus etching los ntawm lub tshuab nqus tsev nias thiab txhaws yog siv los txo qhov nyuaj ntawm kev nias.Nyob rau tib lub sijhawm, nws pab nias ntawm silicone ncoo + epoxy ncoo los daws qhov teeb meem ntawm ultra-thick tooj liab laminate Cov teeb meem xws li cov pob dawb thiab lamination.

❸ Kev tswj xyuas qhov tseeb ntawm ob qhov kev sib dhos ntawm tib txheej ntawm kab: kev ntsuas kev nthuav dav thiab kev cog lus tom qab lamination, kev hloov kho ntawm kev nthuav dav thiab kev cog lus them nyiaj ntawm txoj kab;tib lub sijhawm, cov kab ntau lawm siv LDI laser direct imaging los xyuas kom meej qhov sib tshooj ntawm ob daim duab.

❹ Ultra-thick tooj liab drilling tshuab: Los ntawm kev ua kom zoo ntawm kev sib hloov ceev, pub ceev, khiav ceev, xyaum lub neej, thiab lwm yam, kom ntseeg tau tias zoo drilling zoo.

2.3 Txheej txheem ntws (siv 4-txheej board ua piv txwv)

2.4 Txheej txheem

Vim lub ultra-thick tooj liab ntawv ci, tsis muaj 12oz tuab tooj liab core board nyob rau hauv kev lag luam.Yog hais tias lub core board yog ncaj qha thickened mus rau 12oz, lub Circuit Court etching yog heev nyuaj, thiab etching zoo yog ib qho nyuaj rau lav;Nyob rau tib lub sijhawm, qhov nyuaj ntawm kev nias lub voj voog tom qab ib zaug molding kuj tseem muaj zog heev., ntsib ib tug loj dua technical bottleneck.

Txhawm rau daws cov teeb meem saum toj no, hauv kev ua cov tooj liab ultra-thick, cov khoom tshwj xeeb 12oz tooj liab ntawv nyiaj ncaj qha yuav ncaj qha thaum lub sij hawm tsim qauv.Lub Circuit Court txais yuav ib kauj ruam-los-kauj ruam tswj kev sib sib zog nqus etching tshuab, uas yog, cov ntawv ci tooj liab yog thawj zaug etched 1/2 thickness ntawm sab nraub qaum → nias los tsim cov tuab tooj liab core Board → etching rau pem hauv ntej kom tau txais txheej txheej sab hauv. circuit qauv.Vim lub etching step-by-step, qhov nyuaj ntawm etching yog heev txo, thiab qhov nyuaj ntawm nias kuj txo.

❶ Kab ntawv tsim
Ob txheej ntawm cov ntaub ntawv yog tsim rau txhua txheej ntawm lub voj voog.Thawj cov ntaub ntawv tsis zoo yuav tsum tau tsom iav kom ntseeg tau tias lub voj voog nyob rau hauv tib txoj hauj lwm thaum lub sij hawm rau pem hauv ntej / thim rov qab tswj sib sib zog nqus etching, thiab yuav tsis muaj misalignment.

❷ Rov qab tswj qhov sib sib zog nqus etching ntawm Circuit Court graphics

❸ Secondary circuit graphics alignment precision tswj
Txhawm rau kom ntseeg tau qhov sib txawv ntawm ob txoj kab, qhov kev nthuav dav thiab kev cog lus tus nqi yuav tsum tau ntsuas tom qab thawj lub lamination, thiab cov kab expansion thiab contraction nyiaj yuav tsum tau kho;tib lub sijhawm,

Kev sib dhos tsis siv neeg ntawm LDI laser imaging zoo txhim kho qhov kev sib raug zoo raug.Tom qab kev ua kom zoo, qhov kev sib raug zoo tuaj yeem tswj tau hauv 25um.

❹ Super tuab tooj liab etching zoo tswj
Txhawm rau txhim kho cov etching zoo ntawm ultra-thick tooj liab circuits, ob txoj kev ntawm alkaline etching thiab acid etching tau siv rau kev sib piv.Tom qab kev txheeb xyuas, cov kua qaub-etched Circuit Court muaj me me burrs thiab siab dua kab dav qhov tseeb, uas tuaj yeem ua tau raws li qhov yuav tsum tau ua ntawm ultra-thick tooj liab.Cov nyhuv yog qhia hauv Table 1.

Nrog rau qhov zoo ntawm step-by-step tswj kev sib sib zog nqus etching, txawm hais tias qhov nyuaj ntawm lamination tau txo qis heev, yog tias cov qauv siv rau lamination, nws tseem muaj ntau yam teeb meem, thiab nws yooj yim los tsim cov teeb meem tsis zoo xws li lamination. dawb me ntsis thiab lamination delamination.Vim li no, tom qab kev sib piv cov txheej txheem, kev siv cov silicone ncoo nias tuaj yeem txo qhov laminating dawb me ntsis, tab sis lub rooj tsavxwm nto tsis sib xws nrog cov qauv kev faib tawm, uas cuam tshuam rau cov tsos thiab qhov zoo ntawm cov yeeb yaj kiab;Yog hais tias lub epoxy ncoo kuj tau pab, nias zoo yog ho txhim khu kev qha, tuaj yeem ua tau raws li cov kev xav tau ntawm ultra-thick tooj liab.

❶ Super tuab tooj liab lamination txoj kev

❷ Super tuab tooj liab laminate zoo

Judging los ntawm cov xwm txheej ntawm laminated slices, lub Circuit Court yog tag nrho, tsis muaj micro-slit npuas, thiab tag nrho cov sib sib zog nqus-etched ib feem yog tob tob hauv cov resin;Nyob rau tib lub sijhawm, vim qhov teeb meem ntawm ultra-thick tooj liab sab etching, cov kab saum toj kawg nkaus yog qhov loj dua li txoj kab nqaim tshaj plaws nyob rau hauv nruab nrab ntawm txog 20um, cov duab no zoo ib yam li "tus ntaiv inverted", uas yuav ntxiv dag zog rau cov kab hauv nruab nrab. tuav ntawm nias, uas yog ib qho surprise.

❷ Ultra-thick tooj liab tsim tshuab

Siv cov txheej txheem saum toj no-los-kauj ruam tswj kev sib sib zog nqus etching thev naus laus zis + txheej txheem lamination, txheej txheej tuaj yeem ntxiv ua tiav kom paub txog kev ua tiav thiab tsim cov tooj liab ntau txheej txheej luam ntawv;tib lub sij hawm, thaum txheej txheej yog tsim, tooj liab thickness tsuas yog hais txog approx.6oz, nyob rau hauv ntau yam ntawm cov txheej txheem ntawm cov pa roj carbon monoxide muaj peev xwm, zoo heev txo cov txheej txheem nyuaj ntawm solder daim npog qhov ncauj ntau lawm thiab shortens lub voj voog ntawm solder daim npog qhov ncauj ntau lawm.

Ultra-thick tooj liab drilling tsis

Tom qab tag nrho nias, lub thickness ntawm lub tiav phaj yog 3.0 hli, thiab tag nrho cov tooj liab thickness ncav cuag 160um, uas ua rau nws nyuaj rau xyaum.Lub sijhawm no, txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau nws, nws yog qhov zoo tshaj plaws los txiav txim siab qhov zoo ntawm qhov drilling), cov txheej txheem drilling tau raug kho tshwj xeeb hauv zos.Tom qab kev ua kom zoo, qhov kev txheeb xyuas cov hlais tau pom tias qhov drilling tsis muaj qhov tsis xws luag xws li cov ntsia hlau taub hau thiab cov qhov ntxhib, thiab cov nyhuv zoo.

Cov ntsiab lus
Los ntawm cov txheej txheem kev tshawb fawb thiab kev loj hlob ntawm ultra-thick tooj liab multilayer luam ntawv board, qhov zoo thiab tsis zoo tswj kev sib sib zog nqus etching tshuab yog siv, thiab silicone ncoo + epoxy ncoo yog siv los txhim kho qhov zoo ntawm lamination thaum lub sij hawm lamination, uas muaj txiaj ntsig zoo. teeb meem ntawm etching lub ultra-thick tooj liab Circuit Court Tej teeb meem nyob rau hauv kev lag luam, xws li ultra-thick laminate dawb me ntsis thiab ntau luam ntawv rau solder daim npog qhov ncauj, tau ntse paub txog kev ua thiab zus tau tej cov ultra-thick tooj liab multilayer luam boards;nws qhov kev ua tau zoo tau raug txheeb xyuas kom ntseeg tau, thiab nws tau txaus siab rau cov neeg siv khoom tshwj xeeb xav tau tam sim no.

❶ Step-by-step tswj kev sib sib zog nqus etching tshuab rau cov kab zoo thiab tsis zoo: daws tau qhov teeb meem ntawm ultra-thick tooj liab kab etching;
❷ Qhov zoo thiab qhov tsis zoo ntawm txoj kab sib dhos qhov tseeb tswj tshuab: ua kom zoo dua qhov sib tshooj ntawm ob daim duab;
❸ Ultra-thick tooj liab build-up lamination tshuab: ua tau zoo paub txog kev ua thiab kev tsim ntawm ultra-thick tooj liab multilayer luam boards.

Xaus
Ultra-thick tooj liab luam ntawv boards yog dav siv nyob rau hauv loj-scale cov khoom siv fais fab tswj modules vim lawv cov kev ua tau zoo tshaj tam sim no.Tshwj xeeb tshaj yog nrog kev txhim kho txuas ntxiv ntawm kev ua haujlwm dav dav, ultra-thick tooj liab luam ntawv boards raug khi rau lub ntsej muag dav dua Kev Lag Luam.Tsab ntawv no tsuas yog siv rau kev siv thiab siv rau cov phooj ywg.