Cov kws tsim hluav taws xob feem ntau ntsib teeb meem ntawm kev txiav txim siab qhov zoo ntawm cov txheej txheem rau PCB tsim.Puas yog nws zoo dua los siv ntau txheej lossis tsawg txheej?Koj ua qhov kev txiav txim siab li cas ntawm cov txheej txheem rau PCB?
1.PCB txheej txhais li cas?
Cov khaubncaws sab nraud povtseg ntawm PCB xa mus rau cov txheej tooj liab uas yog laminated nrog substrate.Tsuas yog ib txheej PCBs uas tsuas muaj ib txheej tooj liab xwb, tag nrho cov PCBs uas muaj ob lossis ntau txheej muaj ntau txheej txheej.Cov Cheebtsam yog soldered mus rau txheej txheej sab nraud, thaum lwm cov khaubncaws sab nraud povtseg ua haujlwm sib txuas.Txawm li cas los xij, qee qhov high-end PCBs tseem yuav embed cov khoom nyob rau hauv cov khaubncaws sab nraud povtseg.
PCBs yog siv los tsim ntau yam khoom siv hluav taws xob thiab tshuab hauv kev lag luam sib txawv, xws li cov khoom siv hluav taws xob, tsheb, kev sib txuas lus, aerospace, tub rog, thiab kev kho mob.
kev lag luam.Tus naj npawb ntawm cov khaubncaws sab nraud povtseg thiab qhov loj ntawm ib lub rooj tsavxwm tshwj xeeb txiav txim siab lub zog thiab lub peev xwm ntawm PCB.Raws li tus naj npawb ntawm cov khaubncaws sab nraud povtseg nce, yog li ua haujlwm.
2.Yuav ua li cas thiaj txiav txim siab tus naj npawb ntawm PCB txheej?
Thaum txiav txim siab ntawm cov txheej txheem tsim nyog rau PCB, nws yog ib qho tseem ceeb uas yuav tsum xav txog cov txiaj ntsig ntawm kev siv ntau txheej piv rau ib lossis ob txheej.Nyob rau tib lub sijhawm, nws tseem yuav tsum xav txog qhov zoo ntawm kev siv ib txheej txheej tsim piv rau cov txheej txheem ntau txheej.Cov xwm txheej no tuaj yeem ntsuas los ntawm tsib qhov kev xav hauv qab no:
2-1.Qhov twg yuav siv PCB?
Thaum txiav txim siab cov lus qhia tshwj xeeb rau lub rooj tsavxwm PCB, nws yog ib qho tseem ceeb uas yuav tau xav txog lub tshuab los yog cov cuab yeej siv uas PCB yuav siv rau hauv, nrog rau cov kev cai tshwj xeeb hauv Circuit Court rau cov khoom siv.Qhov no suav nrog kev txheeb xyuas seb lub rooj tsav xwm PCB puas yuav raug siv rau hauv kev txawj ntse thiab
complex cov khoom siv hluav taws xob, lossis hauv cov khoom siv yooj yim nrog kev ua haujlwm yooj yim.
2-2.Dab tsi ua haujlwm zaus yog xav tau rau PCB?
Qhov teeb meem ntawm kev ua haujlwm zaus yuav tsum tau txiav txim siab thaum tsim PCB vim qhov ntsuas no txiav txim siab ua haujlwm thiab muaj peev xwm ntawm PCB.Rau kev ceev dua thiab muaj peev xwm ua haujlwm, ntau txheej PCBs yog qhov tseem ceeb.
2-3.Qhov project pob nyiaj siv yog dab tsi?
Lwm yam yuav tsum xav txog yog cov nqi tsim khoom ntawm ib leeg
thiab ob txheej PCBs piv rau ntau txheej PCBs.Yog tias koj xav tau PCB nrog lub peev xwm siab npaum li qhov ua tau, tus nqi yuav inevitably kuj siab.
Qee tus neeg nug txog kev sib raug zoo ntawm cov txheej txheem hauv PCB thiab nws cov nqi.Feem ntau, cov khaubncaws sab nraud povtseg ntau PCB muaj, nws tus nqi siab dua.Qhov no yog vim kev tsim thiab tsim ntau txheej PCB siv sijhawm ntev dua thiab yog li tus nqi ntau dua.Daim ntawv qhia hauv qab no qhia txog tus nqi nruab nrab ntawm ntau txheej PCBs rau peb lub tuam txhab sib txawv raws li hauv qab no:
PCB txiav txim kom muaj nuj nqis: 100;
PCB loj: 400mm x 200mm;
Cov txheej txheem: 2, 4, 6, 8, 10.
Daim ntawv qhia qhia tus nqi nruab nrab ntawm PCBs los ntawm peb lub tuam txhab sib txawv, tsis suav nrog cov nqi thauj khoom.Tus nqi ntawm PCB tuaj yeem ntsuas tau siv PCB hais cov vev xaib, uas tso cai rau koj xaiv qhov sib txawv xws li tus neeg xyuas pib hom, qhov loj me, qhov ntau, thiab cov txheej txheem.Daim ntawv qhia no tsuas yog muab lub tswv yim dav dav ntawm tus nqi nruab nrab PCB los ntawm peb lub tuam txhab, thiab cov nqi yuav txawv raws li cov txheej txheem.Cov nqi thauj khoom tsis suav nrog.Lub laij lej muaj txiaj ntsig muaj nyob hauv online, muab los ntawm cov tuam txhab lawv tus kheej los pab cov neeg siv khoom ntsuas tus nqi ntawm lawv cov ntawv luam tawm raws li qhov sib txawv xws li tus neeg xyuas pib, qhov loj me, qhov ntau, cov txheej txheem, cov ntaub ntawv rwb thaiv tsev, thickness, thiab lwm yam.
2-4.Lub sij hawm xa tuaj rau PCB yog dab tsi?
Lub sijhawm xa khoom yog hais txog lub sijhawm nws yuav siv los tsim thiab xa ib qho / ob npaug / ntau txheej PCBs.Thaum koj xav tau tsim kom muaj ntau ntawm PCBs, lub sijhawm xa khoom yuav tsum raug coj mus rau hauv tus account.Lub sijhawm khoom xa tuaj rau ib leeg / ob npaug / ntau txheej PCB sib txawv thiab nyob ntawm qhov loj ntawm PCB cheeb tsam.Tau kawg, yog tias koj txaus siab siv nyiaj ntau dua, lub sijhawm xa khoom tuaj yeem luv.
2-5.Dab tsi ntom thiab teeb liab txheej PCB xav tau?
Tus naj npawb ntawm cov khaubncaws sab nraud povtseg hauv PCB nyob ntawm tus pin ceev thiab cov teeb liab txheej.Piv txwv li, tus pin ceev ntawm 1.0 yuav tsum muaj 2 lub teeb liab txheej, thiab raws li tus pin ntom ntom, tus naj npawb ntawm cov txheej yuav tsum tau nce.Yog tias tus pin ceev yog 0.2 lossis tsawg dua, yuav tsum muaj tsawg kawg 10 txheej ntawm PCB.
3.Qhov zoo ntawm cov txheej txheem PCB sib txawv - Ib txheej / ob txheej / ntau txheej.
3-1.Ib txheej PCB
Kev tsim kho ntawm ib txheej PCB yog yooj yim, muaj ib txheej ntawm nias thiab welded txheej ntawm cov khoom siv hluav taws xob.Thawj txheej yog them nrog ib tug tooj liab-clad phaj, thiab ces ib tug solder-resist txheej yog thov.Daim duab ntawm ib txheej PCB feem ntau qhia peb cov xim strips los sawv cev rau txheej thiab nws ob txheej txheej - grey rau dielectric txheej nws tus kheej, xim av rau tooj liab-clad phaj, thiab ntsuab rau cov txheej txheem solder.
Qhov zoo:
● Cov nqi tsim khoom tsawg, tshwj xeeb tshaj yog rau kev tsim cov khoom siv hluav taws xob, uas muaj cov nqi ntau dua.
● Kev sib dhos ntawm cov khoom siv, drilling, soldering, thiab kev teeb tsa yog qhov yooj yim, thiab cov txheej txheem tsim khoom tsis tshua muaj teeb meem.
● Kev lag luam thiab tsim nyog rau kev tsim khoom loj.
● Cov kev xaiv zoo tshaj plaws rau cov qauv tsim qis.
Daim ntawv thov:
● Cov laij lej yooj yim siv ib txheej PCBs.
● Cov xov tooj cua, xws li cov xov tooj cua uas tsis tshua muaj nqi hauv cov khw muag khoom, feem ntau yog siv ib txheej PCBs.
● Cov tshuab kas fes feem ntau siv ib txheej PCBs.
● Qee cov khoom siv hauv tsev siv ib txheej PCBs.
3-2.Ob txheej txheej PCB
Ob txheej txheej PCB muaj ob txheej ntawm tooj liab plating nrog ib txheej insulating nyob nruab nrab.Cheebtsam tau muab tso rau ntawm ob sab ntawm lub rooj tsavxwm, uas yog vim li cas nws tseem hu ua ob-sided PCB.Lawv tsim los ntawm kev sib txuas ob txheej ntawm tooj liab ua ke nrog cov khoom siv dielectric nyob nruab nrab, thiab txhua sab ntawm tooj liab tuaj yeem xa cov hluav taws xob sib txawv.Lawv haum rau cov ntawv thov uas xav tau kev kub ceev thiab ntim ntim.
Cov teeb liab hluav taws xob tau hla ntawm ob txheej ntawm tooj liab, thiab cov khoom siv dielectric ntawm lawv pab tiv thaiv cov teeb liab los ntawm kev cuam tshuam rau ib leeg.Ob txheej txheej PCB yog cov khoom siv hluav taws xob ntau tshaj plaws thiab kev lag luam hluav taws xob los tsim khoom.
Ob-txheej PCBs zoo ib yam li ib txheej PCBs, tab sis muaj ib qho inverted mirrored hauv qab ib nrab.Thaum siv ob-txheej PCBs, lub dielectric txheej yog tuab dua li ntawm ib txheej PCBs.Tsis tas li ntawd, muaj tooj liab plating ntawm ob sab saum toj thiab hauv qab ntawm cov khoom siv dielectric.Tsis tas li ntawd, sab saum toj thiab hauv qab ntawm lub laminated board yog them nrog ib tug solder resist txheej.
Daim duab duab ntawm ob txheej PCB feem ntau zoo li peb-txheej qhaub cij, nrog ib txheej tuab grey nyob rau hauv nruab nrab sawv cev rau dielectric, xim av kab txaij nyob rau sab sauv thiab qis txheej sawv cev rau tooj liab, thiab nyias ntsuab kab txaij nyob rau sab saum toj thiab hauv qab. sawv cev rau cov txheej txheem solder.
Qhov zoo:
● Kev tsim qauv yooj yim ua rau nws haum rau ntau yam khoom siv.
● Tus nqi qis uas ua rau nws yooj yim rau kev tsim khoom loj.
● Yooj yim tsim.
● Me me haum rau ntau yam khoom siv.
Daim ntawv thov:
Ob-txheej PCBs yog tsim rau ntau yam khoom siv hluav taws xob yooj yim thiab nyuaj.Piv txwv ntawm cov khoom tsim tawm loj uas muaj ob txheej txheej PCBs suav nrog:
● HVAC cov chav nyob, cov cua sov hauv tsev thiab cua txias los ntawm ntau hom khoom muaj xws li ob txheej txheej luam tawm Circuit Board.
● Amplifiers, ob txheej PCBs yog nruab nrog amplifier units siv los ntawm ntau tus kws ntaus nkauj.
● Cov tshuab luam ntawv, ntau lub computer peripherals cia siab rau ob txheej txheej PCBs.
3-3.Plaub-txheej PCB
Lub 4-txheej PCB yog lub rooj tsavxwm luam tawm nrog plaub txheej txheej: sab saum toj, ob txheej sab hauv, thiab hauv qab.Ob txheej txheej sab hauv yog cov tub ntxhais, feem ntau yog siv los ua lub zog lossis lub dav hlau hauv av, thaum cov txheej txheem sab saum toj thiab hauv qab yog siv los tso cov khoom siv thiab cov cim qhia.
Cov txheej txheej sab nrauv feem ntau yog them nrog cov txheej txheem solder tiv thaiv nrog cov ntaub qhwv ntsej muag kom muab cov ntsiab lus tso rau kev sib txuas cov khoom siv saum npoo av thiab cov khoom siv los ntawm qhov.Los ntawm-qhov feem ntau yog siv los muab kev sib txuas ntawm plaub txheej, uas yog laminated ua ke los tsim ib lub rooj tsavxwm.
Ntawm no yog qhov tawg ntawm cov khaubncaws sab nraud povtseg:
- Txheej 1: Cov txheej hauv qab, feem ntau yog ua los ntawm tooj liab.Nws ua haujlwm raws li lub hauv paus ntawm tag nrho lub rooj tsav xwm Circuit Court, muab kev txhawb nqa rau lwm cov khaubncaws sab nraud povtseg.
- Txheej 2: Lub zog txheej.Nws yog lub npe hu ua txoj kev no vim nws muab lub zog huv thiab ruaj khov rau tag nrho cov khoom ntawm lub rooj tsavxwm.
- Txheej 3: Txheej dav hlau hauv av, ua haujlwm hauv av rau tag nrho cov khoom ntawm lub rooj tsavxwm.
- Txheej 4: Sab saum toj txheej siv rau kev taw qhia thiab muab cov ntsiab lus txuas rau cov khoom siv.
Hauv 4-txheej PCB tsim, 4 cov kab tooj liab sib cais los ntawm 3 txheej ntawm sab hauv dielectric thiab raug kaw rau saum thiab hauv qab nrog cov txheej txheem tiv thaiv.Feem ntau, cov kev cai tsim rau 4-txheej PCBs tau qhia siv 9 kab thiab 3 xim - xim av rau tooj liab, grey rau core thiab prepreg, thiab ntsuab rau solder resist.
Qhov zoo:
● Durability - Plaub-txheej PCBs muaj zog dua li ib txheej thiab ob txheej txheej.
● Cov me me - Cov qauv me me ntawm plaub txheej PCB tuaj yeem haum rau ntau yam khoom siv.
●Flexibility - Plaub-txheej PCBs tuaj yeem ua haujlwm hauv ntau hom khoom siv hluav taws xob, suav nrog cov khoom yooj yim thiab nyuaj.
● Kev Nyab Xeeb - Los ntawm kev ua kom lub zog thiab cov txheej hauv av kom zoo, plaub txheej PCB tuaj yeem tiv thaiv kev cuam tshuam ntawm electromagnetic.
● Lub teeb yuag - Cov khoom siv nruab nrog plaub txheej PCBs yuav tsum muaj kev sib txuas nrog tsawg dua, yog li lawv feem ntau sib dua ntawm qhov hnyav.
Daim ntawv thov:
● Satellite Systems - Multi-layer PCBs yog nruab rau hauv orbiting satellites.
● Handheld Devices - Smartphones thiab ntsiav tshuaj feem ntau yog nruab nrog plaub txheej PCBs.
● Cov Khoom Siv Tshawb Fawb Chaw - Ntau txheej txheej luam tawm Circuit Board muab lub zog rau cov khoom siv tshawb nrhiav qhov chaw.
3-4.6 pcb ua
Lub 6-txheej PCB yog qhov tseem ceeb ntawm 4-txheej board nrog ob txheej teeb liab ntxiv ntxiv ntawm cov dav hlau.Cov txheej txheem 6-txheej PCB stackup suav nrog 4 txheej txheej txheej (ob txheej thiab ob sab hauv) thiab 2 lub dav hlau sab hauv (ib qho rau hauv av thiab ib qho rau lub zog).
Muab 2 txheej sab hauv rau cov teeb liab siab ceev thiab 2 txheej txheej rau cov teeb liab qis ceev ua kom muaj zog EMI (electromagnetic cuam tshuam).EMI yog lub zog ntawm cov teeb liab hauv cov khoom siv hluav taws xob cuam tshuam los ntawm hluav taws xob lossis induction.
Muaj ntau yam kev npaj rau stackup ntawm 6-txheej PCB, tab sis tus naj npawb ntawm lub zog, teeb liab, thiab cov txheej hauv av siv nyob ntawm cov ntawv thov.
Cov txheej txheem 6-txheej PCB stackup suav nrog txheej sab saum toj - prepreg - txheej hauv av - tub ntxhais - txheej txheej sab hauv routing - prepreg - sab hauv routing txheej - tub ntxhais - sab hauv fais fab txheej - prepreg - hauv qab txheej.
Txawm hais tias qhov no yog tus qauv teeb tsa, nws yuav tsis haum rau txhua tus qauv PCB, thiab nws yuav tsim nyog los hloov cov txheej txheem los yog muaj cov txheej txheem tshwj xeeb.Txawm li cas los xij, kev siv hluav taws xob thiab kev txo qis ntawm crosstalk yuav tsum tau txiav txim siab thaum muab lawv.
Qhov zoo:
● Lub zog - Rau-txheej PCBs yog tuab dua li lawv cov txheej txheem ua ntej thiab yog li muaj zog dua.
● Compactness - Boards nrog rau 6 txheej ntawm cov tuab no muaj peev xwm ua haujlwm ntau dua thiab tuaj yeem siv dav dua.
● Lub peev xwm siab - Rau-txheej lossis ntau dua PCBs muab lub zog zoo rau cov khoom siv hluav taws xob thiab txo qhov muaj peev xwm ntawm crosstalk thiab electromagnetic cuam tshuam.
Daim ntawv thov:
● Cov khoos phis tawj - 6-txheej PCBs pab tsav kev txhim kho sai ntawm cov khoos phis tawj ntawm tus kheej, ua rau lawv sib zog, sib zog, thiab nrawm dua.
● Cov ntaub ntawv khaws cia - Lub peev xwm siab ntawm 6-txheej PCBs tau ua rau cov ntaub ntawv khaws cia ntau ntxiv hauv kaum xyoo dhau los.
● Lub tswb ceeb toom hluav taws - Siv 6 lossis ntau dua Circuit Court boards, lub tswb nrov ua qhov tseeb dua thaum lub sijhawm kuaj pom qhov txaus ntshai tiag tiag.
Raws li tus naj npawb ntawm cov khaubncaws sab nraud povtseg nyob rau hauv lub rooj tsavxwm luam tawm tau nce ntau tshaj li plaub thiab thib rau txheej, cov txheej txheem tooj liab ntau dua thiab cov khoom siv dielectric txheej tau ntxiv rau hauv pawg.
Piv txwv li, ib tug yim-txheej PCB muaj plaub lub dav hlau thiab plaub lub teeb liab txheej tooj liab - yim nyob rau hauv tag nrho - txuas los ntawm xya kab ntawm dielectric khoom.Lub yim txheej stackup yog kaw nrog dielectric solder daim npog qhov ncauj txheej rau saum thiab hauv qab.Qhov tseem ceeb, yim-txheej PCB stackup zoo ib yam li rau-txheej, tab sis nrog ib khub ntxiv ntawm tooj liab thiab prepreg kem.
Shenzhen ANKE PCB Co., Ltd
Xyoo 2023-6-17
Post lub sij hawm: Jun-26-2023
