Thaum nws los txog rau kev tsim cov ntawv luam tawm Circuit boards (PCBs) thiab lwm yam khoom siv hluav taws xob, ob txoj kev ua haujlwm feem ntau yog laser stencils thiab etching stencils. Thaum ob qho tib si stencils ua haujlwm rau lub hom phiaj ntawm kev tsim cov qauv meej, lawv cov txheej txheem tsim khoom thiab kev siv sib txawv. Hauv kab lus no, peb yuav piav qhia qhov tsis sib xws ntawm laser stencils thiab etching stencils.
Dab tsi yog chemical etching stencil?
Chemical etching yog cov txheej txheem tsim tawm uas siv cov tshuaj kho mob los xaiv tshem tawm cov khoom los ntawm cov substrates. Nws yog dav siv hauv kev tsim cov ntawv luam tawm Circuit Board (PCBs) thiab tseem ua haujlwm los tsim cov stencils. Cov txheej txheem etching rau stencils feem ntau yog siv cov stencil mus rau PCB, ntxuav ob lub stencil thiab lub rooj tsavxwm, thiab rov ua cov kauj ruam no kom txog rau thaum qhov kev xav tau tiav. Cov txheej txheem rov ua dua no tuaj yeem siv sijhawm ntev, ua rau nws yog ib qho ntawm kev siv zog ntau dua ntawm kev tsim cov khoom siv hluav taws xob tshwj xeeb, cov khoom sib dhos, thiab cov khoom siv hluav taws xob. Txhawm rau kov yeej cov teeb meem cuam tshuam nrog kev sib tsoo tsoos, qee cov tuam txhab tau pib siv laser-txiav stencils ua lwm txoj hauv kev.
Vim li cas thiaj siv etching stencil?
Etching stencils muaj cov yam ntxwv tseem ceeb hauv qab no.
l Nqi-effectiveness:
Kev tsim cov txheej txheem rau etching stencils feem ntau ua pov thawj ntau tus nqi zoo thaum piv rau laser stencils.
l Txaus Precision:
Thaum tsis ua tiav tib theem ntawm kev ua tiav zoo li laser stencils, etching stencils tseem muab qhov tseeb txaus siab rau ntau yam kev siv PCB.
l Flexibility:
Etching stencils tuaj yeem hloov kho yooj yim lossis hloov kho kom haum raws li kev hloov kho, ua rau lawv tshwj xeeb tshaj yog tsim rau prototyping thiab me me.
Etching stencils feem ntau ua haujlwm hauv cov txheej txheem los ntawm lub qhov (THT) thiab yog qhov zoo rau cov khoom siv uas yuav tsum muaj cov khoom siv loj dua. Lawv pom qhov tsim nyog hauv cov ntawv thov nrog cov khoom siv qis dua qhov uas tus nqi ua tau zoo xav tias qhov tseem ceeb dua.
Laser stencil yog dab tsi?
Laser stencils, tseem hu ua digital stencils, yog ib daim ntawv niaj hnub ntawm kev tsim cov khoom siv hluav taws xob uas siv lub computer tswj cov lasers kom txiav cov ntaub ntawv rau hauv cov duab tshwj xeeb thiab cov qauv. Cov thev naus laus zis no tau tshwm sim hauv kev tsim khoom lag luam nyob ib puag ncig 2010-2012, ua rau nws tseem tshiab hauv kev lag luam.
Txawm hais tias yog ib qho kev txhim kho tsis ntev los no, laser stencils muaj ntau qhov zoo dua li cov tshuaj etching stencils. Cov neeg tsim khoom tuaj yeem tau txais txiaj ntsig los ntawm kev txo lub sijhawm thiab cov khoom xav tau thaum tsim stencils siv cov txheej txheem no. Ntxiv mus, laser-txiav stencils muab kev txhim kho qhov tseeb piv rau lawv cov tshuaj etching counterparts.
Cov txiaj ntsig ntawm kev siv laser stencil
Laser stencils muaj cov yam ntxwv sib txawv hauv qab no.
l Qauv Precision
Kev ua hauj lwm ntawm laser txiav tshuab enables tsim intricate thiab refined qauv, kom ntseeg tau lub siab tshaj plaws precision nyob rau hauv solder paste deposition ntawm PCBs.
l Ntau yam
Laser stencils muab cov kev hloov kho tsis yooj yim thiab kev xaiv txiav kom tau raws li cov qauv tsim tshwj xeeb, ua rau lawv tsim tshwj xeeb rau kev siv dav hauv PCB.
l Durability
Cov stencils no feem ntau yog tsim los ntawm qib qib stainless hlau, uas ua rau lawv muaj qhov tshwj xeeb ua haujlwm ntev thiab siv tau ntev, yog li tso cai rau ntau yam kev siv.
Laser stencils pom ntau daim ntawv thov nyob rau hauv cov txheej txheem nto mount technology (SMT), qhov tseeb solder paste deposition plays lub luag hauj lwm tseem ceeb. Lawv cov kev siv yog tau txais txiaj ntsig tshwj xeeb rau kev siv nyiaj ntau rau PCBs, cov khoom siv zoo, thiab cov hluav taws xob zoo nkauj.
Qhov sib txawv ntawm etching stencil thiab laser stencil
Qhov tsis sib xws ntawm laser stencils thiab etching stencils tuaj yeem ua tiav raws li hauv qab no:
1. Cov txheej txheem tsim khoom:
Laser stencils yog tsim los ntawm laser txiav, thaum etching stencils yog coj mus rau fruition ntawm tshuaj etching.
2. Precision:
Laser stencils muab superior precision, yam tsawg kawg nkaus yog 0.01mm, rendering lawv zoo tagnrho rau nplua-pitch Cheebtsam thiab high-density PCBs. Nyob rau hauv sib piv, etching stencils xa txaus precision rau daim ntaub ntawv nrog tsawg zog yuav tsum tau.
3. Khoom siv thiab Durability:
Laser stencils feem ntau crafted los ntawm stainless hlau, guaranteeing durability rau ntau yam kev siv. Hloov pauv, etching stencils feem ntau yog ua los ntawm tooj dag lossis npib tsib xee, uas yuav tsis muaj tib theem ntawm kev ua haujlwm ntev.
4. Daim ntawv thov:
Laser stencils ua tau zoo hauv SMT cov txheej txheem uas cuam tshuam nrog kev sib txuas sib txuas, thaum etching stencils pom kev siv ntau dua hauv THT cov txheej txheem thiab cov ntawv thov uas xav tau cov khoom siv loj dua.
Kev xaiv ntawm laser stencils thiab etching stencils thaum kawg hinges raws li cov kev xav tau tshwj xeeb ntawm cov txheej txheem tsim khoom PCB. Cov phiaj xwm xav tau siab precision, zoo-pitch Cheebtsam, thiab intricate circuitry yuav tau txais txiaj ntsig los ntawm kev siv laser stencils. Hloov pauv, yog tias tus nqi-zoo, yoog raws, thiab kev sib raug zoo nrog cov khoom siv loj dua cov khoom siv ua ntej, etching stencils muab cov kev daws teeb meem zoo.