High Quality Printed Circuit Board Board PCB

PCB (PCB Assembly) Cov txheej txheem muaj peev xwm

Txog

PCB tau tsim los ntawm ib txheej mus rau ob sab, ntau txheej thiab hloov tau yooj yim, thiab niaj hnub tsim nyob rau hauv cov kev taw qhia ntawm siab precision, siab ceev thiab siab ntseeg.Nruam qhov loj me me, txo tus nqi, thiab kev txhim kho kev ua tau zoo yuav ua rau cov ntawv luam tawm ntawm lub rooj tsavxwm tseem tuav lub zog tseem ceeb hauv kev tsim cov khoom siv hluav taws xob yav tom ntej.Nyob rau hauv lub neej yav tom ntej, txoj kev loj hlob ntawm cov luam ntawv Circuit Court board manufacturing technology yog tsim nyob rau hauv cov kev taw qhia ntawm high density, high precision, me aperture, nyias hlau, me me suab, muaj kev ntseeg siab, ntau txheej, high-speed kis tau tus mob, lub teeb yuag thiab nyias zoo li.

Cov kauj ruam ntxaws ntxaws thiab ceev faj ntawm PCB ntau lawm

1. Tsim
Ua ntej cov txheej txheem tsim khoom pib, PCB yuav tsum tau tsim / teeb tsa los ntawm CAD tus neeg teb xov tooj raws li kev ua haujlwm hauv Circuit Court schematic.Thaum cov txheej txheem tsim tiav, ib txheej ntawm cov ntaub ntawv raug muab rau PCB cov chaw tsim khoom.Cov ntaub ntawv Gerber tau suav nrog hauv cov ntaub ntawv, uas suav nrog txheej txheej txheej txheej, cov ntaub ntawv drillthrough, khaws thiab tso cov ntaub ntawv, thiab cov ntawv sau.Ua cov ntawv luam tawm, muab cov lus qhia tseem ceeb rau kev tsim khoom, tag nrho cov PCB specifications, qhov ntev thiab kam rau ua.

2. Kev npaj ua ntej kev tsim khoom
Thaum lub PCB lub tsev tau txais tus tsim cov ntaub ntawv pob, lawv tuaj yeem pib tsim cov txheej txheem tsim khoom thiab pob kos duab.Kev tsim tshwj xeeb yuav txiav txim siab txog txoj kev npaj los ntawm kev teev cov khoom xws li cov khoom siv, nto tiav, plating, array ntawm cov vaj huam sib luag ua haujlwm, cov txheej txheem routing, thiab lwm yam.Tsis tas li ntawd, ib txheej ntawm lub cev kos duab tuaj yeem tsim los ntawm cov yeeb yaj kiab plotter.Artwork yuav suav nrog tag nrho cov txheej txheem ntawm PCB nrog rau cov duab kos rau lub ntsej muag thiab lub sijhawm kos npe.

3. Kev npaj khoom siv
Lub PCB specification xav tau los ntawm tus tsim qauv txiav txim siab cov khoom siv, cov tuab tuab thiab tooj liab hnyav siv los pib npaj cov khoom.Ib leeg-sided thiab ob-sided rigid PCBs tsis tas yuav muaj txheej txheej sab hauv thiab mus ncaj qha rau cov txheej txheem drilling.Yog tias PCB muaj ntau txheej txheej, kev npaj cov khoom zoo sib xws yuav ua tiav, tab sis nyob rau hauv daim ntawv ntawm cov khaubncaws sab nraud povtseg, uas feem ntau yog thinner thiab tuaj yeem tsim tau mus txog qhov kev txiav txim siab zaum kawg thickness (stackup).
Lub vaj huam sib luag ntau lawm yog 18 "x 24", tab sis txhua qhov loj tuaj yeem siv tau ntev npaum li nws nyob hauv PCB kev tsim muaj peev xwm.

4. Multilayer PCB nkaus xwb - txheej txheej txheej
Tom qab qhov tsim nyog qhov ntev, cov khoom siv, cov tub ntxhais thickness thiab tooj liab qhov hnyav ntawm txheej txheej yog npaj, nws raug xa mus rau laum lub machined qhov thiab ces luam tawm.Ob sab ntawm cov txheej no yog coated nrog photoresist.Teem lub sab siv sab hauv txheej artwork thiab cov cuab yeej qhov, tom qab ntawd nthuav tawm txhua sab rau UV teeb qhia txog qhov pom qhov tsis zoo ntawm cov kab thiab cov yam ntxwv tau teev tseg rau txheej ntawd.UV lub teeb poob rau ntawm photoresist bonds cov tshuaj mus rau qhov chaw tooj liab, thiab cov tshuaj ntxiv uas tsis tau raug tshem tawm raug tshem tawm hauv chav da dej.

Cov kauj ruam tom ntej yog tshem tawm cov tooj liab los ntawm txoj kev etching.Qhov no tso cov kab tooj liab zais hauv qab txheej txheej photoresist.Thaum lub sij hawm etching txheej txheem, ob qho tib si qhov concentration ntawm etchant thiab lub sij hawm raug yog qhov tseem ceeb tsis.Tom qab ntawd tus tiv thaiv yog stripped, tawm hauv kab thiab nta ntawm lub puab txheej.

Cov neeg siv khoom PCB feem ntau siv cov tshuab kho qhov muag kho qhov muag los tshuaj xyuas cov txheej txheem thiab tom qab etch punches txhawm rau txhim kho cov cuab yeej lamination qhov.

5. Multilayer PCB nkaus xwb - Laminate

Ib pawg predetermined ntawm cov txheej txheem yog tsim thaum lub sij hawm tsim txheej txheem.Cov txheej txheem lamination yog ua nyob rau hauv ib qho chaw huv si nrog cov txheej txheem ua tiav, prepreg, tooj liab ntawv ci, xovxwm daim hlau, pins, stainless hlau spacers thiab rov qab daim hlau.Txhua pawg xovxwm tuaj yeem ua raws li 4 mus rau 6 boards rau ib lub xovxwm qhib, nyob ntawm qhov tuab ntawm PCB tiav.Ib qho piv txwv ntawm 4-txheej board stackup yuav yog: platen, steel separator, tooj liab ntawv ci (4th txheej), prepreg, core 3-2 txheej, prepreg, tooj liab ntawv ci, thiab rov ua dua.Tom qab 4 mus rau 6 PCBs tau sib sau ua ke, ruaj ntseg rau saum platen thiab muab tso rau hauv lub lamination xovxwm.Cov xovxwm ramps mus rau contours thiab siv lub siab kom txog rau thaum cov resin melts, ntawm qhov taw tes lub prepreg ntws, sib txuas cov txheej ua ke, thiab cov xovxwm txias.Thaum muab tawm thiab npaj

6. Drilling
Cov txheej txheem drilling yog ua los ntawm CNC tswj ntau lub chaw nres tsheb drilling uas siv lub siab RPM spindle thiab carbide laum me ntsis tsim rau PCB drilling.Hom vias tuaj yeem ua me me li 0.006 "rau 0.008" drilled ntawm speeds saum 100K RPM.

Cov txheej txheem drilling tsim kom huv si, du phab ntsa uas yuav tsis ua puas rau cov txheej txheem sab hauv, tab sis qhov drilling muab txoj hauv kev rau kev sib tshuam ntawm cov txheej sab hauv tom qab plating, thiab qhov tsis yog los ntawm lub qhov xaus mus rau hauv tsev mus rau hauv lub qhov.
Cov qhov tsis-plated feem ntau yog drilled ua haujlwm thib ob.

7. Tooj plating
Electroplating yog dav siv hauv PCB ntau lawm qhov twg plated los ntawm qhov yuav tsum tau ua.Lub hom phiaj yog tso ib txheej ntawm tooj liab rau ntawm cov khoom siv hluav taws xob los ntawm kev kho tshuaj lom neeg, thiab tom qab ntawd los ntawm cov txheej txheem electroplating txuas ntxiv kom cov tuab ntawm cov txheej tooj liab mus rau qhov tshwj xeeb tsim thickness, feem ntau 1 mil lossis ntau dua.

8. Kev kho txheej txheej sab nrauv
Cov txheej txheem txheej txheej txheej yog tiag tiag tib yam li cov txheej txheem yav dhau los tau piav qhia rau txheej sab hauv.Ob sab ntawm sab saum toj thiab hauv qab txheej yog coated nrog photoresist.Teem lub sab siv cov duab kos duab sab nrauv thiab cov cuab yeej qhov, tom qab ntawd nthuav tawm txhua sab rau UV lub teeb kom nthuav dav cov qauv kho qhov muag tsis zoo ntawm cov kab thiab cov yam ntxwv.UV lub teeb poob rau ntawm photoresist bonds cov tshuaj mus rau qhov chaw tooj liab, thiab cov tshuaj uas tsis muaj tshuaj ntxiv raug tshem tawm hauv chav da dej.Cov kauj ruam tom ntej yog tshem tawm cov tooj liab los ntawm txoj kev etching.Qhov no tso cov kab tooj liab zais hauv qab txheej txheej photoresist.Tom qab ntawd, tus tiv thaiv yog stripped, tawm hauv cov kab thiab nta ntawm txheej txheej.Cov txheej txheej tsis xws luag tuaj yeem pom ua ntej solder daim npog ntsej muag uas siv cov khoom siv kho qhov muag.

9. Muab tshuaj txhuam
Daim ntawv thov daim npog ntsej muag zoo ib yam li cov txheej txheem sab hauv thiab txheej txheej.Qhov sib txawv tseem ceeb yog kev siv lub ntsej muag photoimageable es tsis txhob photoresist hla tag nrho saum npoo ntawm cov khoom vaj huam sib luag.Tom qab ntawd siv cov artwork coj cov duab rau saum thiab hauv qab txheej.Tom qab kis tau, daim npog qhov ncauj yog tev tawm hauv thaj chaw duab.Lub hom phiaj yog kom nthuav tawm tsuas yog thaj chaw uas cov khoom yuav raug muab tso thiab soldered.Lub npog ntsej muag kuj txwv qhov chaw tiav ntawm PCB rau thaj chaw raug.

10. Kev kho deg

Muaj ob peb txoj kev xaiv rau qhov kawg nto tiav.Kub, nyiaj, OSP, tsis muaj hlau lead-dawb solder, txhuas-muaj solder, thiab lwm yam. Tag nrho cov no yog siv tau, tab sis tiag tiag boil rau tsim cov kev cai.Kub thiab nyiaj yog siv los ntawm electroplating, thaum tsis muaj txhuas thiab cov hlau lead uas muaj cov hlau lead yog siv horizontally los ntawm cov cua kub solder.

11. Nomenclature
Feem ntau cov PCBs tau thaiv cov cim ntawm lawv qhov chaw.Cov cim no feem ntau yog siv rau hauv cov txheej txheem sib dhos thiab suav nrog cov piv txwv xws li cov cim qhia thiab cov cim polarity.Lwm cov cim tuaj yeem ua tau yooj yim raws li kev txheeb xyuas tus lej lossis cov lej tsim hnub.

12. Sub-board
PCBs yog tsim nyob rau hauv tag nrho cov khoom vaj huam sib luag uas yuav tsum tau tsiv tawm ntawm lawv cov contours manufacturing.Feem ntau PCBs tau teeb tsa hauv arrays txhawm rau txhim kho kev sib dhos ua haujlwm.Yuav muaj tus lej tsis kawg ntawm cov arrays no.piav tsis tau.

Feem ntau cov arrays yog qhov profile milled ntawm CNC zeb siv cov cuab yeej carbide los yog qhab nia siv pob zeb diamond-coated serrated cov cuab yeej.Ob txoj kev siv tau, thiab kev xaiv ntawm txoj kev feem ntau yog txiav txim siab los ntawm pab pawg sib dhos, uas feem ntau pom zoo rau cov array tsim thaum ntxov.

13. Test
PCB cov tuam txhab feem ntau siv cov kev sojntsuam ya los yog lub txaj ntawm cov ntsia hlau kuaj txheej txheem.Txoj kev sim txiav txim los ntawm cov khoom kom muaj nuj nqis thiab / lossis cov khoom siv muaj

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Peb Qhov Kev Pabcuam

1. PCB Assembly Services: SMT, DIP & THT, BGA kho thiab reballing
2. ICT, Kev ntsuas kub tsis tu ncua thiab ntsuas kev ua haujlwm
3. Stencil, Cables thiab Enclosure tsev
4. Txheem ntim thiab xa tuaj raws sij hawm