Tam sim no, kev tsim cov hluav taws xob cov laug cam feem ntau ntawm cov qauv sib dhos, uas cuam tshuam ntau dhau los ntawm cov khoom siv tooj liab-clad laminate los ua cov qauv custom.
Cov txheej txheem ntau lawm ntawmPCB Multi-Txheej Txheej Txheem Circuit Court:
Txoj kev txo qis feem ntau siv tshuaj lom neeg corrosion, uas yog nyiaj txiag thiab muaj txiaj ntsig. Tsuas yog tshuaj corrosion tsis muaj kev sib txawv, yog li nws yog ib qho tsim nyog los tiv thaiv cov qauv ntawm cov qauv ntawm corrosion, thiab tom qab ntawd txo cov corrosion ntawm kev tiv thaiv tooj liab ntawv ci. Nyob rau hauv thaum ntxov hnub, tiv thaiv corrosion cov neeg sawv cev tau luam tawm nyob rau hauv daim ntawv ntawm cov kab siv tshuaj ntsuam luam ntawv nrog anti-corrosion number case inek, li no lub npe "luam tawm cov kab ke". Txawm li cas los xij, nrog kev nce qib ntawm cov khoom hluav taws xob, cov duab daws teeb meem uas cov khoom xav tau ua tiav, ua rau kev siv cov khoom siv duab. Cov ntaub ntawv photoresist yog cov ntaub ntawv photensitive uas rhiab rau qee yam wavelength ntawm lub teeb ci, sib sau ua ib daim duab tshuaj tiv thaiv nrog nws los ua ib lub polymer. Tsuas yog siv cov duab kos duab rau kev xaiv cov duab, thiab tom qab ntawd tev tawm ntawm cov tshuaj tsis muaj kev sib raug zoo (xws li 1% los tsim cov txheej txheem kev tiv thaiv kab ke.
Lub interlayer conductivity muaj zog kuj tseem ua tiav los ntawm kev ua haujlwm ntawm pcb, thiab kev ua haujlwm electring electring tau ua rau thaum kawg ua tiav interlayer conductivity.
Noj cov pa6 Layers PCBUa piv txwv, cov txheej txheem ntau lawm yog raws li hauv qab no:
1, Ua ntej, ua ob qho tsis muaj zog ob tog
Txiav (Raw Khoom Siv Ob-Sided Copper-Clad Laminate) - Sab Hauv Txheej Txheej Txheem Ntau Lawm) - Sab Hauv Txheej Etching (rho tawm ntau dhau tooj liab ntawv
2, kua nplaum thiab nyem ob zaug ua ntej ua cov tub ntxhais ua tub ntxhais tab nrog Epoxy Resin Fiberglass SEMI kho cov ntawv txheeb. Rivet ob sab hauv cov laug cam rau cov ntawv txheeb xyuas SEMI, thiab tom qab ntawd nteg lub tooj liab ntawv ntawm ob sab. Siv xovxwm tshuab kom ua tiav cov nias hauv qab qhov kub thiab kub siab rau kev sib khi ua ke. Cov khoom tseem ceeb yog daim ntawv kho tau zoo ib yam li cov khoom sib xyaw ua ke raws li cov khoom siv raw, uas yog epoxy resin iav fiber ntau. Txawm li cas los xij, nws yog nyob rau hauv ib lub xeev tsis tiav thiab liquefies ntawm qhov kub ntawm 7-80 degrees. Tus neeg saib xyuas kev kho tau ntxiv rau nws, uas crosslinks nrog lub cob thiab solidifies ntawm 150 degrees, thiab yog tsis thim rov qab. Los ntawm xws li lub semi-zoo kua khoom hloov dua siab hloov dua siab tshiab, cov nplaum ua tau tiav tiav nyob rau hauv kev kub siab.
Ob qho tib si nyob rau hauv cov nqe lus tsim thiab tsim khoom, PCB multilayer cov laug cam ntau dua ib qho thiab ib qho yuav ntsib qee qhov teeb meem yog tias tsis ceev faj. Yog li, peb yuav tsum tsis txhob muaj kev nyuaj rau PCB multilayer Circuit Court Board Sampling?
Kev nyuaj siab nyob rau hauv sampling multi-txheej impedance camts
1. Kev nyuaj rau hauv interlayer signment
Vim tias cov khaubncaws sab nraud povtseg ntawm cov khaubncaws sab nraud povtseg ntawm cov txheej txheem hluav taws xob ntau txheej, cov neeg siv tau nce siab ntxiv rau PCB txheej calibration. Feem ntau, cov kev ua kom haum rau kev ua raws li cov khaubncaws sab nraud pov hwm ntawm 75 microns. Xav txog qhov loj loj ntawm ntau txheej txheem bircuit Court Board ib puag ncig, kev kub siab thiab av noo hauv cov txheej txheem sib txawv ntawm cov pob zeb sib txawv yog qhov nyuaj dua.
2. Cov teeb meem nyob rau hauv Circuit Court Raug
Multilayer Circuit Cours siv cov ntaub ntawv tshwj xeeb xws li High Figh, tuab heev xav tau ntawm Circuit Court Fabrication thiab nraaj tswj. Piv txwv li, kev ncaj ncees ntawm kev sib kis tus kis tau tus kis tau nce qhov nyuaj ntawm Circuit Court tsim. Qhov dav thiab kab kab sib txawv yog qhov me me, ua rau muaj kev nce ntxiv hauv kev qhib thiab luv luv ntawm cov voj voog, thiab tus nqi qis; Ntau yam nyias nyias lub teeb liab txheej nce qhov tshwm sim ntawm AOI Taumnage nrhiav tau hauv txheej sab hauv; Tus thawj coj sab hauv yog nyias, nquag mus rau wrinkling, muaj tsis zoo raug, thiab muaj kev nkhaus ntawm etching; High qib phiaj yog feem ntau cov kab ke system cov laug cam nrog chav loj thiab cov khoom lag luam siab SCRAP.
3. Kev nyuaj hauv compression manufacturing
Ntau tus tub ntxhais hluas sab hauv thiab semi cov rooj zaum cov thawj coj tau muab coj los cuam tshuam rau qhov tsis xws luag xws li swb, delamination, thiab cov npuas nyob hauv cov stamples ntau lawm. Hauv kev tsim ntawm Laminated cov qauv, lub cua sov kuj, siab tsis kam, thiab cov khoom tsim nyog nias cov txheej txheem rau multi-txheej txheej txheem boards yuav tsum tau tsim. Due to the large number of layers, the consistency of expansion and contraction control and size coefficient compensation cannot be maintained, and the thin interlayer insulation layer is prone to failure in interlayer reliability testing.
4. Nyuaj rau hauv kev tsim cov khoom drilling
Kev siv ntawm qhov siab siab, siab nrawm, tuab zaus, tuab tus neeg tooj liab tshwj xeeb nce qhov nyuaj, laum kev ua kom nruj, thiab tshem cov drilling stains. Ntau txheej, cumulative tag nrho tooj liab thickness thiab phaj tuab, yooj yim los tawg cov cuab yeej drilling; Qhov teeb meem ntawm CAF tsis ua hauj lwm tshwm sim los ntawm ntom BGA thiab qhov nqaim lub ntsa loog kab; Vim yog cov tuab tuab ntawm lub rooj tsavxwm, nws yog qhov yooj yim los ua rau muaj teeb meem drilling.
Cov Txheej Txheem Multilayer PCB Fabrication Txheej Txheem PCBA Los Ua Si Multilayer Pcb PCBa Dab tsi yog ib qho kev txiav txim pcb siping
#How yog multilayer Circuit Cots ua? #Hyog yog Circuit Court Txiag Tsim? #Qhov yog 4 txheej Pcbs ua? #Web yog tus txheej txheem ntawm SMT?
#What yog qhov zoo ntawm multilayer pcb?