Rigid Circuit Board yog dab tsi?
Lub Rooj Tswjhwm Saib nruj nruj (PCB) yog ib hom ntawm lub rooj tsavxwm luam tawm uas muaj txheej txheej nruj uas tsis tuaj yeem khoov. Rigid PCBs yog tsim los ntawm cov khoom siv ceramic lossis iav thiab yog cov khoom siv ruaj khov, muaj peev xwm tiv taus cua sov, thiab tiv taus ntev ntev ntawm cov khoom. Lawv feem ntau siv rau hauv cov khoom siv uas yuav tsum tau ua kom nruj, xws li khoos phis tawj thiab tshuab luam ntawv, thiab zoo haum rau cov chaw siv siab.
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.
Durability thiab Reliability
Rigid PCBs yog tsim los ntawm cov ntaub ntawv nyuaj, ruaj khov xws li fiberglass lossis epoxy resin, uas muab lub hauv paus ruaj khov rau cov khoom. Lub zog ntawm cov qauv no ua kom ntseeg tau tias cov laug cam tuaj yeem tiv taus kev ntxhov siab ntawm lub cev thiab tsis tshua muaj kev puas tsuaj thaum tuav, tsim khoom, thiab ua haujlwm.
Yooj yim ntawm Fabrication thiab Assembly
Lub rigidity ntawm cov boards no ua rau lawv yooj yim los tuav thaum lub sij hawm sib dhos txheej txheem. Cov Cheebtsam tuaj yeem yooj yim soldered rau ntawm lub rooj tsavxwm, thiab qhov kev pheej hmoo ntawm kev puas tsuaj rau lub rooj tsavxwm thaum lub sijhawm sib dhos yog qis dua piv rau cov PCB hloov tau yooj yim.
High Component Density
Rigid PCBs tuaj yeem txhawb nqa qhov ntom ntom ntawm cov khoom thiab cov khoom siv hluav taws xob. Qhov no tshwj xeeb tshaj yog muaj txiaj ntsig zoo hauv cov ntawv thov uas qhov chaw yog tus nqi them, xws li hauv smartphones thiab lwm yam khoom siv hluav taws xob compact.
Thermal stability
Rigid PCBs feem ntau pom zoo thermal stability, txhais tau tias lawv tuaj yeem tiv taus qhov kub thiab txias yam tsis muaj deforming. Qhov no yog qhov tseem ceeb heev rau kev siv hluav taws xob siab thiab ib puag ncig uas PCB raug tshav kub heev.
Nqi-zoo
Rau kev tsim khoom loj, nruj PCBs feem ntau muaj txiaj ntsig zoo dua piv rau cov hloov tau yooj yim lossis nruj-flex PCBs. Cov txheej txheem ntawm cov khoom siv thiab cov txheej txheem tsim khoom ua rau lawv pheej yig dua rau kev tsim khoom loj.
Zoo ib yam
Vim lawv cov txheej txheem tsim tau zoo, cov PCBs nruj zoo li muaj qhov zoo sib xws thiab kev ua haujlwm zoo. Qhov kev twv ua ntej no yog qhov tseem ceeb hauv kev lag luam uas kev ntseeg siab yog qhov tseem ceeb, xws li hauv cov cuab yeej kho mob lossis kev siv dav hlau.
High-Speed Circuitry Compatibility
Rigid PCBs muaj peev xwm txhawb kev kub ceev circuitry. Lawv muab lub platform ruaj khov rau high-frequency circuits, uas yog qhov tseem ceeb hauv kev sib txuas lus thiab kev suav.
Environmental Resistance
Ntau cov PCBs nruj yog tsim los tiv thaiv ib puag ncig hnyav, suav nrog kev raug tshuaj lom neeg, noo noo, thiab kub heev. Qhov no ua rau lawv haum rau kev siv sab nraum zoov thiab kev lag luam.
Kev siv Rigid Circuit Board
Rigid cov ntawv sau ua ke tau txhim kho Circuit Court ntom ntom, ua rau kev txo qis hauv ob qho loj thiab qhov hnyav ntawm pawg thawj coj saib. Cov ntawv thov ntawm PCBs nruj yog ntau haiv neeg raws li cov khoom siv hluav taws xob hauv nws tus kheej. Nov yog qee qhov piv txwv xwb:
Kev suav:Los ntawm desktop PCs mus rau laptops thiab smartphones, PCBs nruj tsim cov caj qaum ntawm cov khoom siv no, txuas cov processors, nco, thiab lwm yam tseem ceeb.
Consumer Electronics:TV, koob yees duab, game consoles, thiab ntau dua txhua tus cia siab rau cov PCBs nruj rau lawv cov circuitry sab hauv.
Kev Siv Hluav Taws Xob:Cov khoom siv fais fab, cov tswj lub cev muaj zog, thiab ntau yam khoom siv hauv kev lag luam siv cov PCBs nruj rau lawv cov kev ua tau zoo thiab kev tswj xyuas kub.
Cov cuab yeej kho mob:Pacemakers, defibrillators, thiab lwm yam khoom siv kho mob tseem ceeb nyob ntawm qhov kev ntseeg tau thiab qhov tseeb ntawm cov PCBs nruj.
Aerospace thiab Defense:Satellites, aircraft electronics, thiab cov cuab yeej siv tub rog feem ntau xav tau qhov ruggedness thiab stability ntawm nruj PCBs.
Hom Rigid Circuit Board
Ib qho ntawm qhov zoo ntawm PCBs nruj yog lawv lub peev xwm ua haujlwm tau siv rau ntau qhov project specifications thiab configurations. Ntawm MCL, peb muab cov PCB nruj hauv ntau hom, suav nrog:
Ib sab:Ib leeg-sided circuit boards yog thawj PCB. Lawv muaj ib txheej ntawm cov khoom siv hluav taws xob, thiab tag nrho cov khoom nyob rau ntawm ib sab ntawm lub rooj tsavxwm. Nrog lawv cov qauv tsim yooj yim, PCBs ib leeg yog ceev thiab yooj yim los tsim, txo qhov ua yuam kev. Qhov kev teeb tsa raug nqi zoo no zoo nyob hauv cov qauv tsim qis.
Ob sab:Tsis yog ib txheej txheej txheej, ob sab PCBs siv tooj liab conductive txheej ntawm ob sab. Nrog rau ob zaug ntawm qhov chaw rau cov khoom, ob-sided PCBs muaj ntau txoj kev xaiv tsim thiab muaj zog Circuit Court complexity, ua rau lawv muaj feem xyuam rau ntau yam ntawm tej yaam num.
Multilayer:Hom PCB no siv peb lossis ntau txheej ntawm cov khoom siv hluav taws xob tso rau hauv nruab nrab nrog ob peb lwm txheej nyob ib puag ncig cov tub ntxhais. Nrog rau ntau txheej txheej thiab txheej txheem kho kom zoo, cov laug cam multilayer txo qhov kev xav tau ntawm kev sib txuas sib txuas, txuag chaw thiab ua rau lub PCB tuab thiab tawv.
Carrier board los yog Mechanical Spacer:Thaum koj xav tau lub nraub qaum nruj los muab kev txhawb nqa thaum lub sijhawm sib dhos rau cov PCBs nyias nyias, qee lub tuam txhab tuaj yeem xaiv siv lub rooj tsav xwm uas tsis muaj cov txheej txheem ua haujlwm. Txhua lub rooj tsav xwm hluav taws xob uas siv rau kev ua haujlwm txhua yam muaj cov txheej tooj liab lossis xav tau kev sib txuas hluav taws xob. Ntawm MCL, peb tuaj yeem tsim cov PCB tsis muaj zog raws li koj qhov tshwj xeeb tshwj xeeb los txhawb txhua yam khoom siv thiab khoom siv uas koj npaj siab ua haujlwm nrog.
Rigid PCB Boards Ua li cas?
PCBs yog dab tsi?
Rigid PCB muaj cov txheej txheem sib txawv uas tau koom ua ke siv cov nplaum thiab cov cua sov, muab cov duab zoo rau cov khoom siv. Cov khaubncaws sab nraud povtseg hauv qab no yog siv los tsim cov PCB nruj.
Substrate Txheej
Lub substrate txheej, tseem hu ua cov khoom siv hauv paus, yog ua los ntawm fiberglass. FR4 feem ntau yog siv los ua cov khoom siv substrate, feem ntau cov fiberglass uas muab rigidity thiab nruj rau lub rooj tsavxwm. Phenolics thiab epoxies kuj tseem siv los ua cov khoom siv hauv paus, tab sis lawv tsis zoo li FR4. Txawm li cas los xij, lawv tsis tshua kim thiab muaj cov ntxhiab tsw ntxhiab tsw phem. Lub decomposition kub ntawm phenolics yog tsawg heev, ua rau delamination ntawm txheej yog solder muab tso rau ntev.
Copper Txheej
Nyob rau sab saum toj ntawm lub substrate txheej, ib daim ntawv tooj liab yog laminated rau ntawm lub rooj tsavxwm nrog kev pab los ntawm cov nyiaj ntxiv ntawm tshav kub thiab nplaum. Hauv kev siv txhua hnub, ob sab ntawm lub rooj tsavxwm yog laminated nrog tooj liab; Txawm li cas los xij, qee cov khoom siv hluav taws xob pheej yig tuaj nrog tsuas yog ib txheej ntawm cov khoom siv tooj liab ntawm lub rooj tsavxwm. Cov boards sib txawv tuaj nrog cov thicknesses sib txawv, uas tau piav qhia hauv ounces ib square feet.
Solder Mask Txheej
Solder Mask Layer tsev nyob saum txheej tooj liab. Cov txheej no yog ntxiv rau ntawm lub rooj tsavxwm kom ntxiv cov rwb thaiv tsev ntawm cov txheej tooj liab kom tsis txhob muaj kev puas tsuaj yog tias cov khoom siv raug kov nrog cov txheej tooj liab.
Silkscreen Txheej
Lub silkscreen txheej yog nyob rau saum lub npog ntsej muag. Nws yog siv los ntxiv cov cim lossis cov cim ntawm lub rooj tsavxwm kom nkag siab lub rooj tsavxwm zoo dua. Dawb xim yog tsuas yog siv rau silkscreen. Txawm li cas los xij, lwm cov xim kuj muaj xws li grey, liab, dub, thiab daj.
Rigid Pcbs thiab Flex Circuits txawv li cas?
Lub PCB nruj, feem ntau hu ua PCB, yog qhov uas tib neeg feem ntau xav txog thaum lawv xav txog lub rooj tsavxwm. Cov laug cam no txuas cov khoom siv hluav taws xob siv cov khoom siv hluav taws xob thiab lwm yam khoom siv, uas tau teem rau ntawm lub substrate uas tsis yog conductive. Nyob rau hauv ib tug nruj Circuit Court board, lub non-conductive substrate feem ntau muaj iav, uas txhawb lub rooj tsavxwm thiab muab nws lub zog thiab rigidity. Lub rooj tsav xwm nruj nruj muab kev txhawb nqa zoo rau cov khoom siv, nrog rau kev ua haujlwm zoo thermal.
Txawm hais tias lub PCB hloov tau yooj yim kuj tseem muaj cov kab hluav taws xob ntawm cov khoom siv hluav taws xob tsis zoo, cov khoom siv hluav taws xob no siv cov khoom siv yooj yim xws li polyimide. Lub hauv paus hloov tau tso cai rau cov voj voog hloov tau los tiv thaiv kev co, dissipate tshav kub thiab quav mus rau ntau yam duab. Vim tias lawv cov qauv muab, flex circuits tau siv ntau dua hauv cov khoom siv hluav taws xob thiab cov khoom siv tshiab.
Dhau li ntawm cov txheej txheem txheej thiab rigidity, qhov sib txawv ntawm PCBs thiab flex circuits suav nrog:
Cov khoom siv conductive:Vim tias cov flex circuits yuav tsum khoov, cov tuam txhab lag luam tuaj yeem siv cov khoom siv tau yooj yim dua dov annealed tooj liab es tsis txhob electro-deposited tooj liab ua cov khoom siv hluav taws xob.
Kev tsim khoom:Hloov chaw ntawm kev siv lub npog ntsej muag, cov chaw tsim khoom siv PCB hloov tau siv cov txheej txheem hu ua overlay lossis coverlay los tiv thaiv lub PCB hloov pauv ntawm cov khoom siv hluav taws xob.
Tus nqi raug:Flex circuits feem ntau raug nqi ntau dua li cov kab hluav taws xob nruj. Txawm li cas los xij, vim tias lawv muaj peev xwm ua kom haum rau hauv qhov chaw compact, flex circuits tso cai rau cov engineers kom txo qhov loj ntawm lawv cov khoom, ua rau kev txuag nyiaj tsis ncaj.
Yuav ua li cas xaiv ntawm ib tug nruj thiab saj zawg zog pcb
Rigid thiab hloov tau yooj yim Circuit Court boards pom siv nyob rau hauv ntau yam khoom sib txawv, txawm hais tias qee daim ntawv thov yuav tau txais txiaj ntsig ntau dua los ntawm ib hom ntawm Circuit Board. Piv txwv li, PCBs nruj ua rau muaj kev nkag siab zoo hauv cov khoom loj, xws li TVs thiab cov khoos phis tawj desktop, thaum lub voj voog hloov tau xav tau rau cov khoom siv ntau dua, xws li smartphones thiab cov cuab yeej siv tau zoo.
Pcb nyob rau hauv ib puag ncig hnyav: Yuav ua li cas ceev faj?
Qee pawg ntawm cov khoom siv hluav taws xob yuav tsum ua haujlwm tshwj xeeb, xws li tshuaj tsuag ntsev, ntsev, plua plav, xuab zeb, lossis kub heev. Txhawm rau kom ntseeg tau tias cov hluav taws xob hluav taws xob txuas ntxiv ua haujlwm zoo li qub, PCB yuav tsum tau tsim los tiv thaiv cov xwm txheej no yam tsis muaj kev puas tsuaj. Cov PCBs siv nyob rau hauv tsheb, kev lag luam lossis kev lag luam aerospace, piv txwv li, tsis tu ncua raug kev vibrations, mechanical stresses, shocks, dav heev thermal excursions thiab ntau dua.
Cov teeb meem tseem ceeb ntawm PCBs rau qhov chaw hnyav tuaj yeem raug sau tseg raws li hauv qab no:
Moisture, plua plav thiab av:Txhawm rau tiv thaiv cov xwm txheej ib puag ncig no, feem ntau yuav tsum tau kho PCB nrog cov txheej txheem tshwj xeeb hu ua conformal txheej. Nrog nws, PCB yog them tom qab txheej txheem sib dhos nrog ib txheej nyias ntawm cov khoom siv tiv thaiv tsis zoo xws li silicon, acrylic, urethane lossis p-xylene. Cov txheej tso cai rau kom ntev lub neej ntawm cov hluav taws xob hluav taws xob los ntawm kev tiv thaiv nws los ntawm cov kab mob sab nraud.
Kub kub:Yog tias PCB yuav tsum ua haujlwm tsis tu ncua ntawm qhov kub siab tshaj tus qauv, nws yog qhov zoo dua los siv cov khaubncaws sab nraud povtseg nrog cov tooj liab tuab (hnyav tooj liab). Copper thicknesses ntau dua 3 ounces ib square feet yog feem ntau ua ke nrog rau daim ntawv thov txheej txheej los muab lub rooj tsavxwm nrog kev tiv thaiv siab nyob rau hauv qhov xwm txheej ntawm kev ua haujlwm tsis cuam tshuam ntawm qhov kub thiab txias. Kev siv cov khaubncaws sab nraud povtseg nrog cov iav hloov pauv siab dua (Tg), xws li FR-4 TG140 lossis TG170), muab PCB nrog kev tiv thaiv ntxiv ntawm qhov kub thiab txias
Ionizing hluav taws xob:PCBs rau aerospace daim ntaub ntawv yog bombarded nrog hais ntau yam, ntxiv rau electromagnetic hluav taws xob generated los ntawm lub hnub thiab lwm yam celestial lub cev. Cov hluav taws xob no tuaj yeem ua rau muaj kev cuam tshuam ib ntus (xws li me ntsis flip lossis kev nco qab tshem tawm) lossis cov khoom siv ruaj khov thiab kev co, tshwj xeeb tshaj yog hauv kev siv tsheb thiab aerospace.
Corrosion:Nws yog ib qho ntawm cov pitfalls tseem ceeb rau txhua qhov hlau. Corrosion tshwm sim thaum oxygen thiab hlau daim ntawv cog lus rau ib leeg ntawm cov txheej txheem hu ua oxidation. Qhov no ua rau xeb thiab ua rau cov hlau poob nws cov tshuaj lom neeg, decomposing dhau sijhawm. Txij li cov PCBs muaj cov hlau ntau, yog tias raug cov pa oxygen, lawv yuav raug corrosion.
Txhawm rau tiv thaiv kev puas tsuaj los ntawm cov neeg ua haujlwm hauv huab cua, cov txheej txheem tiv thaiv tsis zoo hu ua conformal txheej yog siv rau PCB tom qab sib dhos (Daim duab 1). Qhov no feem ntau siv rau PCBs rau cov neeg siv khoom, cov khoom siv thiab cov khoom siv txawb, qhov chaw uas nws muaj feem xyuam rau kev ua haujlwm ntawm cov dej noo, plua plav lossis lwm yam hnyav ib puag ncig. Cov txheej txheem tiv thaiv siv rau PCB tso cai rau cov dej noo tam sim no hauv PCB cov khaubncaws sab nraud povtseg, thaum tiv thaiv cov neeg ua haujlwm sab nraud los ntawm kev ncav cuag lub rooj tsavxwm thiab nws cov khoom, cuam tshuam lawv cov haujlwm. Ntxiv nrog rau kev txhim kho kev ntseeg siab, cov txheej txheem conformal txuas ntxiv lub neej ntawm lub voj voog.
Cov txheej txheem ntau tshaj plaws yog silicone, acrylic resin, polyurethane thiab p-xylene, txhua tus muaj peev xwm muab qee qhov kev tiv thaiv. Silicone, piv txwv li, tuaj yeem npog qhov dav dav ntawm qhov kub thiab txias thiab yog li qhov kev xaiv zoo tshaj plaws rau cov ntawv thov nrog qhov kub thiab txias. Ntawm qhov tod tes, silicone muaj lub zog nplaum tsis zoo ntawm qee hom substrate thiab qis tshuaj tiv thaiv dua li acrylic resin. Lub tom kawg, vim nws cov qauv nruj, tsis yog tshwj xeeb tshaj yog haum nyob rau hauv lub xub ntiag ntawm shocks thiab vibrations. Polyurethanes muaj kev tiv thaiv siab rau cov av noo, abrasion thiab vibrations, tiv taus qhov kub thiab txias, tab sis tsis kub siab. Nws ua raws li lawv feem ntau yog siv rau hauv daim ntawv thov nrog kub ntawm -40 degree mus rau +120 degree . P-xylene yog cov khoom siv zoo ib yam uas muaj kev tiv thaiv siab tab sis yog kim thiab ua rau cov kab mob tsis zoo yuav tsum tau siv rau hauv lub tshuab nqus tsev.
Hais txog daim ntawv thov ntawm PCB conformal txheej, plaub txoj kev siv tau: dipping, automated xaiv txheej, txau thiab txhuam. Txhua qhov kev xaiv no ua tiav tib lub hom phiaj: kom npog tag nrho PCB nrog rau cov npoo ntse thiab tag nrho cov npoo ntawm lub rooj tsavxwm. Tom qab daim ntawv thov, txheej txheej yog kho los ntawm huab cua kom qhuav, qhov cub kom qhuav lossis los ntawm UV teeb.
Qhov nce ceev ntawm cov khoom ntawm PCB ua rau muaj qhov tsis tuaj yeem nce hauv kev khiav hauj lwm kub, ib qho xwm txheej uas nyob rau hauv lub sij hawm ntev tuaj yeem cuam tshuam qhov kev ncaj ncees ntawm cov welds los yog ntawm cov khaubncaws sab nraud povtseg ntawm lawv tus kheej vim qhov nthuav thiab contraction ntawm cov ntaub ntawv nrog lub cev sib txawv. Yog li ntawd, lub siab kub PCB yuav tsum siv lub dielectric nrog lub iav hloov kub (Tg) ntawm tsawg kawg yog 170 degree. Ib txoj cai ib txwm siv yog tso cai rau kev ua haujlwm kub txog li 25 degree qis dua Tg tus nqi ntawm cov khoom siv. Ntxiv rau qhov kev xaiv ntawm cov khoom siv, qhov kub siab ntawm PCB tuaj yeem tswj tau los ntawm kev tshem tawm cov cua sov uas tsim tawm thiab xa mus rau lwm qhov chaw ntawm PCB. Yog hais tias cov khoom kub yog ntsia rau sab saum toj ntawm PCB thiab muaj qhov loj txaus, lub dab dej kub tuaj yeem ntsia tau rau ntawm nws uas tuaj yeem tshem tawm cov cua sov ua ntej los ntawm kev ua haujlwm (los ntawm cov khoom mus rau lub heatsink) thiab tom qab ntawd los ntawm convection (los ntawm qhov chaw ntawm lub heatsink mus rau ib puag ncig, cua txias dua).
Yog hais tias qhov kub tivthaiv yog mounted rau hauv qab ntawm PCB thiab nws tsis tuaj yeem mount lub dab dej kub, cov txheej txheem feem ntau siv los ntawm cov neeg tsim qauv yog ntxig rau ntau qhov thermal paths ntawm PCB kom hloov cov cua sov tawm ntawm cov khoom kub mus rau. ib txheej. ntawm tooj liab nyob rau sab saum toj ntawm PCB, los ntawm qhov chaw uas nws tuaj yeem txuas ntxiv mus rau lub dab dej uas tsim nyog. Feem ntau, PCB mounted heat sinks yog loj, nrog finned los yog corrugated nto los ua kom lub dissipation cheeb tsam. Cov kiv cua tuaj yeem muab ntxiv los txhim kho kev quab yuam convection txias, piv rau ntuj convection txias.
Rau qhov chaw ua haujlwm mus sij hawm ntev, tib txoj kev xaiv muaj yog siv "rad-hard" Cheebtsam. Cov Cheebtsam no yog qhov tsawg dua thiab yog li kim dua li cov qauv txheej txheem. Rau lub sijhawm luv luv ntawm qhov chaw tshaj tawm txoj haujlwm (txog ib xyoos), kev siv cov qauv kev lag luam tuaj yeem raug tso cai, raug tshuaj xyuas thiab tshuaj xyuas lawv lub peev xwm tiv thaiv hluav taws xob. Qhov no tso cai rau koj los txo cov nqi tsim khoom ntawm cov khoom siv hauv chaw thiab nthuav cov kev xaiv ntawm cov khoom muaj rau kev tsim. Los ntawm kev siv cov txheej txheem tsim kho vajtse sib txawv, cov teebmeem tsim los ntawm hluav taws xob tuaj yeem tiv thaiv. Nyob rau theem tsim PCB, piv txwv li, nws yog ib qho tseem ceeb kom ntseeg tau tias muaj av txaus ntawm txhua qhov hlau.
Txhawm rau muab kev tiv thaiv kev poob siab thiab kev vibration, PCB tuaj yeem ntsia tau rau hauv lub thawv rau hauv uas cov resin yog poured rau tag nrho encapsulate nws. Qhov siab dua cov txheej resin, qhov kev tiv thaiv zoo dua. Tshwj tsis yog tias tag nrho cov khoom ntawm PCB muaj qhov siab tsis sib xws, lub thickness ntawm cov txheej resin yuav txawv ntawm lub rooj tsavxwm, muab kev tiv thaiv me ntsis rau txhua qhov. Lub thinnest resin txheej yog li sib raug, nyob rau hauv qhov phem tshaj, mus rau theem ntawm kev tiv thaiv muaj nyob rau tag nrho cov board. Ua ntej txawm xav txog resin encapsulation, PCB yuav tsum tau ntxuav kom huv si. Kev sib kis ntawm qhov chaw tuaj yeem cuam tshuam tsis zoo rau qib kev tiv thaiv uas muab los ntawm encapsulation, tshwj xeeb tshaj yog nyob rau hauv cov tshuaj tiv thaiv (raws li nws muab txoj hauv kev yooj yim rau cov tshuaj nkag mus).
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 siab ceev pcb manufacturers thiab cov muag khoom nyob rau hauv Suav teb, peb sov siab txais tos koj los yuav los yog lag luam wholesale bulk high density pcb 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.