Printed Circuit Board yog dab tsi?
Lub rooj tsav xwm luam tawm (PCB) yog ib qho khoom siv hluav taws xob uas siv cov khoom siv tooj liab los tsim hluav taws xob sib txuas ntawm cov khoom thiab muab kev txhawb nqa rau lawv. PCBs yog tsim los ntawm cov khoom siv tsis zoo nrog cov kab hluav taws xob luam tawm lossis kos rau hauv nws. Tom qab ntawd cov khoom siv hluav taws xob tau muab tso rau ntawm lub rooj tsavxwm, thiab cov kab txuas txuas rau cov khoom siv los ua ib qho chaw ua haujlwm.
Vim Li Cas Xaiv Peb
Pab neeg tshaj lij
Lub chaw muab kev pabcuam kev ruaj ntseg ntseeg tau los ntawm cov neeg siv khoom, nws ua haujlwm rau cov neeg siv khoom hauv ntau lub lag luam xws li tsoomfwv thiab kev lag luam, nyiaj txiag, kev kho mob, Internet, e-lag luam thiab lwm yam.
Kev pab txhawb nqa
Peb pab pawg kws tshaj lij muaj peev xwm pab daws teeb meem, teb cov lus nug txog kev txawj ntse, thiab muab kev taw qhia.
Kev ntseeg tau
Peb muab cov qauv kev sib koom ua ke vertically muab cov saw hlau kom ntseeg tau tias cov khoom siv tau ntev thiab ua tiav traceability.
Kev Pabcuam Cov Neeg Siv Khoom
Peb ua qhov tseem ceeb qhib kev sib txuas lus los hais txog peb cov neeg siv khoom tshwj xeeb thiab xa cov kev daws teeb meem rau tus kheej.
PCBs yog tsim los ntawm kev sib cais ntawm qhov saum npoo ntawm tooj liab ntawv nyiaj conductive txheej los ntawm lub rooj tsavxwm hauv cov khoom siv rwb thaiv tsev, uas tso cai rau tam sim no ntws los ntawm ntau yam khoom raws li kev tsim ua ntej, thaum kawg ua tiav cov haujlwm xws li kev tsim hluav taws xob, amplification, attenuation, modulation, demodulation, thiab coding.
Kev nkag siab txog yuav ua li cas lub rooj tsav xwm luam tawm ua haujlwm yuav tsum pib nrog nws cov khoom. Tag nrho PCBA board yog tsim los ntawm cov laug cam thiab cov khoom siv, xws li microchips, resistors, capacitors thiab connectors. Cov neeg tsim khoom muab cov khoom sib txuas rau PCB los ntawm kev sib txuas los yog lwm cov txheej txheem. Piv txwv li, ib qho PCB ib leeg, lub rooj tsavxwm uas muaj cov khoom siv hluav taws xob thiab cov xov hlau ntawm ib sab ntawm lub rooj tsavxwm. Feem ntau peb mount cov khoom ntawm lub rooj tsavxwm uas tsis yog-conductive los ntawm SMT los ua ke technology los yog PCBA DIP los ua ke technology thiab txuas lawv los ntawm txoj kev me me hu ua kab. Cov kab mob tso cai rau cov khoom siv hluav taws xob ntawm tag nrho lub rooj tsavxwm ua haujlwm los ntawm kev ua kom muaj zog. Tsis yog txhua yam khoom siv kho vajtse tau txuas ncaj qha rau ntawm PCB, cov khoom xws li cov saib thiab cov koob yees duab txuas nrog PCB los ntawm cov khoom sib txuas thiab cov kab ncaj nraim.
Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm ob sab thiab ntau txheej Circuit Court boards yog los qhia cov txheej txheem roj (Ar, N2, O2, thiab lwm yam) nyob rau hauv lub tshuab nqus tsev siab, thiab cov roj yog ionized rau hauv cov ntshav. Nyob rau hauv qhov kev txiav txim ntawm hluav taws xob teb, cov plasmas txav mus rau siab muaj peev xwm thiab tsis tshua muaj peev xwm feem. Cov pab pawg atomic txav mus rau qhov tsis tshua muaj peev xwm ua rau lub hom phiaj (tooj liab), kom cov tooj liab atoms raug stripped ntawm tooj liab, thiab thaum kawg them rau ntawm lub substrate (FRP), uas yog, tooj liab clad laminate. Qhov no yog ib txoj kev siv lub cev ib txwm muaj, uas muaj qhov zoo ntawm tsis muaj kuab paug thiab paub tab technology. Qhov tsis zoo yog tias qhov ua tau zoo yog qeeb thiab lub voj voog ntev. Yog tias koj xav paub sai sai ntawm cov txheej txheem tsim khoom PCB, koj tuaj yeem nteg tus qauv etched ua ntej, thiab tom qab ntawd tsim cov PCB raws li txoj hauv kev saum toj no, thiab sab hauv lub qhov rau kev sib txuas kuj tuaj yeem plated nrog hlau tooj liab kom nws metallized.
Qhov zoo ntawm Printed Circuit Boards
Kev daws teeb meem
Lub rooj tsav xwm luam tawm tuaj yeem muaj ntau qhov chaw thiab cov khoom. Vim tias lawv siv tooj liab es tsis yog cov xov hlau tiag tiag, nws tso cai rau tib hom kev tshwm sim yam tsis siv cov xaim nqa tam sim no. Cov laug cam yog me me thiab lawv tsis loj li. Qhov no yog ib qho laj thawj uas muaj ntau yam khoom siv hluav taws xob sib txawv me dua li yav dhau los. Cov PCBs tau pab thawb thev naus laus zis mus rau ntau txoj hauv kev. Nws yog tam sim no ua tau kom muaj cov circuits nyuaj heev hauv cov pob me me.
Txuag Sijhawm thiab Zog
Ib qho txiaj ntsig zoo tshaj plaws ntawm kev siv cov ntawv luam tawm hauv Circuit Court yog lub sij hawm uas tuaj yeem txuag tau. Kev sib txuas cov khoom siv ib txwm siv sijhawm ntau, thaum lub rooj tsav xwm hauv Circuit Court yuav siv sij hawm tsawg dua los sib sau ua ke thaum tsim tiav. Cov theem tsim yog feem ntau yuav siv sij hawm ntau npaum li cas nrog cov ntawv luam tawm Circuit Court boards, tab sis txawm tias qhov no tuaj yeem txo qis thaum siv hom software rau nws cov creation. AdvancedPCB yeej muab cov neeg siv khoom pub dawb ntawm software hu ua PCB Artist. Nws yog ib qho yooj yim thiab intuitive siv thiab nws muab ib tug kuj yooj yim txoj kev los tsim thiab ntsuam xyuas cov luam Circuit Court board ua ntej mus rau tus so ntawm tus txheej txheem.
Tsis Muaj Kev Sib Txuas Loose
Cov kev sib txuas hauv cov ntawv luam tawm Circuit Board yog tsim los ntawm cov ntawv luam tawm, thiab ntev npaum li lawv tau tsim tau zoo, koj tsis tas yuav cuam tshuam nrog luv luv Circuit Court lossis xoob kev sib txuas. Sib piv qhov no rau lwm txoj hauv kev siv cov xov hlau tiag tiag, uas tuaj yeem xoob thaum lub rooj tsavxwm txav mus. Qee zaum, cov hlau nws tus kheej yuav muaj teeb meem kev sib txuas. Qhov no tuaj yeem nyuaj rau kev taug qab thiab nrhiav qhov chaw ntawm qhov teeb meem tiag tiag. Nrog cov ntawv luam tawm Circuit Board, hom teeb meem no tsis muaj nyob. Yog tias muaj teeb meem nrog lub rooj tsavxwm, nws zoo li yooj yim rau kev kuaj mob thiab kho.
Ib qho Kev Xaiv Zoo
Nws tsis yog qhov xwm txheej uas muaj ntau lub tuam txhab thiab cov tib neeg niaj hnub no tau siv cov ntawv luam tawm Circuit Board. Lawv yog cov kev daws teeb meem txhim khu kev qha uas tuaj yeem ua haujlwm rau ntau yam kev siv thiab cov khoom loj thiab me. Lawv tuaj yeem siv sijhawm ntev thaum lawv tau ua kom zoo, uas yuav ua rau tib neeg muaj kev ntseeg siab nrog cov khoom siv hluav taws xob uas lawv siv. Qhov no muaj tseeb txawm tias cov cuab yeej ntawd yuav yog lub xov tooj, lub computer, lossis cov khoom siv tub rog qib uas siv nyob rau hauv qhov tsawg dua qhov kev zam txim.
Tus nqi qis
Tau kawg, thaum nws los tsim thiab tsim ntau yam khoom siv hluav taws xob, tus nqi tseem ceeb heev. Hmoov zoo, ib zaug lub rooj tsav xwm hauv Circuit Court tau tsim thiab kuaj xyuas kom ntseeg tau tias nws ua haujlwm zoo, cov khoom loj yog pheej yig heev. Muaj cov khoom siv tsawg dua siv nyob rau hauv feem ntau, uas pab txo tus nqi mus rau qib pheej yig rau feem ntau cov tuam txhab.
Hom Printed Circuit Boards
Feem ntau, cov laug cam tuaj yeem muab faib ua peb pawg: nruj, flex, lossis hlau-core.
Rigid boards feem ntau yog feem ntau ntawm cov laug cam uas tus tsim qauv yuav ntsib, qhov chaw ntawm lub rooj tsavxwm muaj nyob rau hauv ib qho nyuaj substrate tsim los ntawm kev kub kub thiab siab lamination txheej txheem. Cov khoom siv rau cov laug cam yog FR-4, tab sis nyob ntawm qhov kev xav tau tshwj xeeb ntawm cov qauv tsim, qhov no tuaj yeem hloov kho kom pom tseeb lossis ua kom zoo dua qee yam ntawm lub rooj tsavxwm.
Cov boards yooj yim yog tsim los ntawm cov khoom siv tsis tshua muaj zog uas tso cai rau ntau dua deflection. Cov ntaub ntawv yog tactilely reminiscent ntawm ib zaj duab xis yob, thiab lub board thickness feem ntau yog deb tsawg tshaj li ib tug txheej txheem rigid board. Thaum lawv twb pom cov kev siv loj, muaj kev cia siab tias cov boards hloov tau yooj yim yuav ua rau cov kauj ruam tom ntej ntawm kev siv thev naus laus zis thiab tshem tawm cov kev txwv tam sim no uas muaj nyob rau hauv cov khoom siv nruj.
Ib lub hlau-core PCB yog ib yam ntawm kev tawm tsam ntawm kev tsim cov txheej txheem nruj, nrog rau kev muaj peev xwm ua kom muaj cua sov thoob plaws hauv lub rooj tsavxwm los tiv thaiv cov hluav taws xob tsis zoo. Cov style no tuaj yeem yog qhov kev xaiv rau cov qauv tsim tam sim no los tiv thaiv thermal hnav thiab tsis ua haujlwm.
Txhua qhov chaw muaj kev tswj xyuas electromagnetism, cov ntawv luam tawm Circuit Court boards tsim cov txheej txheem los tswj nws. Tau kawg, Circuit Court boards tsis yog lub caij nplooj ntoos hlav tawm ntawm qhov tsis muaj dab tsi - lawv cov qauv tsim thiab kev tsim khoom yog ib qho kev lag luam loj loj uas ua rau lawv tus kheej.
Cov txheej txheem ntawm Printed Circuit Board Design
Ua ntej lub rooj tsav xwm luam tawm tuaj yeem tsim tau, nws yuav tsum tau tsim. Qhov no yog ua tiav siv PCB Circuit Board tsim CAD cov cuab yeej. PCB tsim tau tawg ua ob pawg tseem ceeb: schematic capture los tsim cov kev sib txuas hauv Circuit Court hauv daim duab thiab tom qab ntawd PCB layout los tsim lub rooj tsav xwm lub cev.
Tsim lub Library CAD Parts
Thawj kauj ruam yog los tsim cov tsev qiv ntawv CAD qhov xav tau rau kev tsim. Qhov no yuav suav nrog cov cim schematic, simulation qauv, hneev taw rau PCB layout, thiab cov qauv kauj ruam rau 3D luam tawm Circuit Board zaub. Thaum cov tsev qiv ntawv npaj tau lawm, cov kauj ruam tom ntej yog los tsim cov kev xav tau ntawm lub circuitry ntawm ib qho schematic. CAD cov cuab yeej siv los tso cov cim rau ntawm daim ntawv schematic thiab tom qab ntawd txuas lawv los tsim cov kab hluav taws xob.
Nyob rau tib lub sij hawm, Circuit Court simulation yog khiav los xyuas kom meej tias tus tsim yuav ua hauj lwm hluav taws xob raws li nws yog npaj rau. Thaum cov haujlwm no tiav lawm, cov cuab yeej schematic yuav xa lawv cov ntaub ntawv txuas mus rau cov cuab yeej layout.
Layout
Nyob rau sab layout ntawm PCB tsim, schematic connectivity yog tau txais thiab ua tiav raws li nets uas txuas ob los yog ntau tshaj tivthaiv pins. Nrog rau ib qho kev nthuav dav ntawm lub hom phiaj ntawm lub rooj tsavxwm ntawm qhov screen, tus tsim qauv tsim yuav tso cov hneev taw rau hauv qhov chaw raug. Thaum cov khoom sib xyaw no tau zoo, cov kauj ruam tom ntej yog txuas cov nets rau cov pins los ntawm kos cov kab thiab cov dav hlau ntawm cov pins. Cov cuab yeej CAD yuav muaj cov cai tsim tsim rau hauv lawv uas tiv thaiv cov kab ntawm ib lub vas los ntawm kov lwm lub vas thiab tswj hwm ntau lwm qhov dav thiab qhov chaw xav tau rau kev tsim kom tiav. Thaum lub routing tiav lawm, cov cuab yeej tsim tau siv dua los tsim cov duab kos thiab cov ntaub ntawv tso tawm uas cov chaw tsim khoom yuav siv los tsim lub rooj tsavxwm.
Kev tsim thiab kev tsim khoom ntawm lub rooj tsav xwm hauv Circuit Court yog cov txheej txheem ib ntus: schematic creation thiab simulation, teeb tsa PCB tsim daim phiaj thiab DRCs, qhov chaw tso khoom, PCB routing, lub dav hlau fais fab, thiab thaum kawg sib sau ua ke BOM thiab tsim lub rooj tsavxwm.
Qauv thiab kev siv ntawm Printed Circuit Board
Ntau yam ntawm cov yam ntxwv tseem ceeb ntawm kev ua haujlwm ntawm PCB yog txhais nyob rau hauv pawg-up lossis kev npaj ntawm txheej hauv PCB. Cov txheej txheej txheej-up yog tsim nrog alternating txheej ntawm conductive thiab insulating cov ntaub ntawv, thiab nrog alternating txheej ntawm core thiab prepreg (ob hom dielectrics siv nyob rau hauv lub txheej stack-up). Lub dielectric thiab mechanical zog ntawm cov tub ntxhais thiab prepreg yuav txiav txim siab kev ntseeg siab thiab lub teeb liab / lub zog ncaj ncees hauv kev tsim, thiab lawv yuav tsum tau ua tib zoo xaiv thaum tsim cov ntawv thov kev ntseeg siab. Piv txwv li, kev siv tub rog thiab kev kho mob xav tau cov qauv tsim muaj kev ntseeg siab uas yuav raug xa mus rau hauv qhov chaw hnyav, thiab PCB rau kev sib tham hauv xov tooj yuav xav tau PTFE laminate qis hauv ib pob me me.
Ib qho piv txwv ntawm PCB stack-up yog qhia hauv qab no. Hauv qhov piv txwv no, pawg-up siv cov txheej txheem 4- txheej txheej nrog ob txheej dav hlau sab hauv (L02_GND rau hauv av, thiab L03_PWR rau lub zog). Hom kev teeb tsa no tsim nyog rau cov khoom siv IoT, lub teeb yuag embedded systems, thiab ntau lwm yam qauv uas siv cov txheej txheem ceev ceev. Lub dav hlau sab hauv pab kom muaj kev ncaj ncees lub zog thaum tseem muab qee qhov kev tiv thaiv tiv thaiv sab nraud EMI. Lub dav hlau sab hauv cov khaubncaws sab nraud povtseg kuj muab ib qho kev siv zoo ib yam rau kev tswj cov cim impedance. Hom kev teeb tsa no yog qhov zoo rau ntau tus qauv tsim thiab feem ntau yog qhov pib taw qhia rau ntau cov ntawv luam tawm niaj hnub.
Common Cheebtsam ntawm Printed Circuit Boards
Cov ntawv luam tawm Circuit Board yog tsim los ntawm ntau yam khoom siv PCB thiab cov khoom siv hluav taws xob. Common PCB Cheebtsam muaj xws li:
Resistors
Resistors xa cov hluav taws xob tam sim no los tsim hluav taws xob thiab dissipate hluav taws xob raws li cua sov. Lawv tuaj hauv ntau yam khoom siv.
Capacitors
Txoj haujlwm ntawm lub capacitor yog tuav cov nqi hluav taws xob hauv lub rooj tsavxwm thiab tom qab ntawd tso tawm thaum xav tau ntau lub zog rau lwm qhov hauv Circuit Court. Capacitors feem ntau ua haujlwm los ntawm kev sau cov nqi sib txawv ntawm ob txheej txheej txheem uas tau sib cais los ntawm cov khoom siv insulating.
Inductors
Cov no zoo ib yam li cov capacitors uas lawv khaws lub zog. Txawm li cas los xij, lawv feem ntau siv los thaiv cov teeb liab hauv PCB, xws li cuam tshuam los ntawm lwm yam khoom siv hluav taws xob.
Transistors
Transistor yog ib qho amplifier. Nws yog siv los hloov lossis tswj cov teeb liab hluav taws xob hauv lub rooj tsavxwm. Muaj ntau ntau yam sib txawv ntawm transistors muaj, tab sis feem ntau yog cov transistor bipolar.
Hloov pauv
Cov no yog siv los hloov hluav taws xob hluav taws xob los ntawm ib lub voj voog mus rau lwm qhov ntawm kev nce, lossis txo qis, hauv qhov hluav taws xob.
Diodes
Ib lub diode tso cai rau cov hluav taws xob tam sim no ntws hauv ib qho kev taw qhia, tab sis tsis nyob rau lwm qhov. Yog li ntawd, diodes yog siv los nres cov hluav taws xob tam sim no los ntawm kev ntws mus rau qhov tsis ncaj ncees lawm thiab ua rau lub rooj tsavxwm thiab cov cuab yeej puas. Daim ntawv nrov tshaj plaws ntawm diode yog LED (uas sawv cev rau lub teeb-emitting diode).
Sensors
Cov cuab yeej siv no yog siv los ntsuas qhov kev hloov pauv ntawm ib puag ncig thiab tsim hluav taws xob teeb liab uas sib haum rau qhov kev hloov pauv. Cov teeb liab no ces xa mus rau lwm cov khoom hauv lub rooj tsav xwm Circuit Court. Sensors hloov lub cev lub cev xws li lub teeb txav, huab cua zoo, lossis lub suab rau hauv hluav taws xob.
Cov txheej txheem PCB
Txhua hom PCB muaj ntau cov txheej txheem sib txawv uas ua rau nws ua haujlwm. Txawm li cas los xij, tsis hais seb koj xaiv PCB hom twg, txhua lub rooj tsavxwm muaj tib lub hauv paus tseem ceeb. Qhov no txhais tau tias tag nrho cov PCBs muaj plaub txheej hauv qab no:
Substrate txheej
Qhov no feem ntau yog ua los ntawm fiberglass, uas muab lub rooj tsavxwm nws rigidity. Cov khaubncaws sab nraud povtseg kuj tuaj yeem ua nrog epoxies, tab sis cov no tsis muaj qhov ruaj khov uas fiberglass muab.
Copper txheej
Raws li koj xav tau los ntawm lub npe, txheej tooj liab ntawm PCB yog tsim los ntawm ib txheej nyias ntawm cov ntawv ci tooj liab uas yog laminated rau lub rooj tsavxwm siv cov cua sov.
Thaum peb tham txog txawv 'txheej txheem' ntawm PCB, peb tab tom tham txog pes tsawg txheej tooj liab lawv muaj. Piv txwv li, ib sab PCB tsuas yog muaj ib txheej ntawm cov khoom siv ntawm ib sab ntawm lub rooj tsavxwm. Hauv qhov xwm txheej no, sab nraud ntawm lub rooj tsavxwm yog siv rau kev sib xyaw cov khoom siv hluav taws xob sib txawv. Lub caij no, ob sab PCB yuav txuas cov khoom siv tooj liab thiab cov khoom ntawm ob sab ntawm lub rooj tsavxwm.
Lub thickness ntawm cov txheej tooj liab yuav raug txiav txim los ntawm tus nqi ntawm lub zog uas PCB xav tau los tiv thaiv. PCBs uas yuav tsum tau tswj lub zog siab dua yuav muaj qib tooj liab tuab dua.
Solder mask txheej
Lub npog ntsej muag yog muab tso rau saum cov tooj liab thiab muab cov PCBs feem ntau nrog lawv cov xim ntsuab. Cov txheej no insulates cov tooj liab thiab xyuas kom meej tias nws tsis tuaj yeem cuam tshuam nrog lwm cov khoom.
Silkscreen txheej
Cov txheej silkscreen feem ntau yog ntxiv rau cov txiaj ntsig ntawm tib neeg. Nws suav nrog kev ntxiv cov ntawv, lej thiab cov cim rau lub rooj tsavxwm yog li nws yooj yim dua rau cov neeg siv nkag siab txog kev ua haujlwm ntawm cov pins sib txawv thiab LEDs.
Peb lub Hoobkas
Sihui Fuji Electronics Technology Co., Ltd. Founded hauv 2009, nws tau tsom mus rau lub sij hawm ntev thiab txhim khu kev qha Circuit Court board ntau lawm rau 14 xyoo. Nrog lub zog ntawm cov khoom pov thawj allegro, ntau lawm, ntau lub npe khoom, ntau yam khoom siv, thiab lub sijhawm xa khoom luv, nws muab cov kev pabcuam ib-nres kom tau raws li cov kev xav tau ntawm cov neeg siv khoom mus rau qhov loj tshaj plaws. Nws yog ib lub tuam txhab hluav taws xob hluav taws xob hauv Suav teb uas muaj kev paub dhau los hauv kev tswj xyuas zoo ntawm cov tuam txhab Japanese. Kev lag luam.
FAQ
Raws li ib qho ntawm cov ua lag luam thiab cov muag khoom nyob rau hauv Suav teb, peb sov siab txais tos koj los yuav los yog lag luam wholesale bulk luam ntawv Circuit Court board rau muag ntawm no los ntawm peb lub hoobkas. Tag nrho cov khoom customized yog nrog cov khoom zoo thiab cov nqi sib tw. Tiv tauj peb rau kev hais lus thiab qauv dawb.