Kub muag

PCB yog cov ntawv luv rau cov ntawv luam tawm Circuit Board ua lus Askiv. Printed circuits feem ntau hu ua cov qauv conductive ua los ntawm cov ntawv luam tawm, cov khoom luam tawm, lossis kev sib xyaw ntawm ob, raws li cov qauv tsim ua ntej ntawm cov ntaub ntawv insulating. Cov qauv conductive uas muab kev sib txuas hluav taws xob ntawm cov khoom ntawm cov khoom siv insulating yog hu ua lub tshuab luam ntawv. Nyob rau hauv txoj kev no, cov ntawv luam tawm lossis cov ntawv ua tiav ntawm cov ntawv luam tawm yog hu ua cov ntawv luam tawm, los yog cov ntawv luam tawm lossis cov ntawv luam tawm. Ntawm qhov yooj yim tshaj plaws PCB, cov khoom yog concentrated ntawm ib sab thiab cov xov hlau yog concentrated rau sab nraud. Vim tias cov xov hlau tsuas yog tshwm sim ntawm ib sab, peb hu rau hom PCB no ib sab PCB. Vim tias ib sab PCBs muaj ntau qhov kev txwv nruj hauv kev tsim hluav taws xob, vim tias lawv tsuas muaj ib sab xwb, cov xaim tsis tuaj yeem cuam tshuam thiab yuav tsum tau khiav ntawm nws tus kheej.

Flexible PCB tau siv dav hauv kev ua lag luam thiab tau dhau los ua cov khoom lag luam tseem ceeb hauv kev lag luam hluav taws xob. Nws tuaj yeem hloov kho rau ntau yam kev siv ntawm PCB hloov tau yooj yim, xws li cov khoom siv coj los siv, cov khoom siv dag zog, cov khoom siv kho mob, RFID modules, thiab lwm yam. Rigid saj zawg zog PCB yog ib qho kev hloov rau cov PCB nruj, ua los ntawm cov khoom siv PCB tab sis nrog cov yam ntxwv khoov. Kev sib xyaw ua ke ntawm nruj thiab yoog raws PCB feem ntau yog siv rau cov xov tooj ntawm tes thiab cov khoom siv hnav. Ob qho tib si semi saj zawg zog thiab rigid saj zawg zog PCBs muab cov qauv ruaj khov nrog kev yooj yim ntxiv rau txav los yog co cov khoom lag luam.

Rigid saj zawg zog PCBs tuaj yeem khoov, quav, lossis sib npaug, thiab tom qab ntawd muab tso rau hauv ntau yam khoom. Lawv muab kev yooj yim, yoog raws, thiab kev txav mus los rau cov khoom siv nqa tau yooj yim. Lawv suav nrog cov npav nthuav dav thiab cov roj teeb ntawm lub laptops lossis desktop computers. Ib qho yooj yim PCB tuaj yeem khoov lossis khoov, tab sis nws tsis hloov pauv raws li lub rooj sib txig sib xyaw ua ke. Lawv kuj yog ib qho kev daws teeb meem uas siv tau zoo vim tias lawv tsis tas yuav muaj kev sib txuas hauv cov cheeb tsam uas muaj cov neeg taug kev siab, vim lawv tuaj yeem khoov yam tsis muaj kev sib tsoo lossis sib cais. Cov ntawv blog no yuav delve rau hauv ntau yam kev siv ntawm cov khoom siv yooj yim PCB thiab semi-flexible PCB tsim.

Printed Circuit Board (PCB), tseem hu ua Printed Circuit Board lossis Printed Circuit Board. Multilayer printed boards hais txog cov ntawv luam tawm uas muaj ntau tshaj ob txheej, uas yog tsim los ntawm kev sib txuas ntawm cov xov hlau ntawm ob peb txheej ntawm insulating substrates thiab cov ntaub qhwv siv los sib dhos thiab vuam cov khoom siv hluav taws xob. Lawv tsis tsuas yog muaj kev ua haujlwm ntawm kev ua cov circuits ntawm txhua txheej, tab sis kuj muaj kev ua haujlwm ntawm kev sib nrig sib rwb thaiv tsev.

PCB multilayer board yog hais txog ntau txheej txheej Circuit Court board siv nyob rau hauv cov khoom siv hluav taws xob, uas siv ntau dua ib qho los yog ob-sided wiring boards. Lub rooj tsav xwm luam tawm uas siv ib txheej txheej ob sab hauv, ob sab ib sab txheej txheej, lossis ob txheej txheej sab hauv, thiab ob sab txheej txheej, thiab sib cuam tshuam nrog cov duab hluav taws xob raws li kev tsim qauv los ntawm kev tso chaw thiab insulating cov ntaub ntawv sib txuas, dhau los ua plaub lossis rau txheej luam tawm Circuit Board, tseem hu ua multi-layer printed circuit board.

Lub hauv paus hlau rwb thaiv tsev yog tsim los ntawm cov hlau puag txheej, txheej rwb thaiv tsev, thiab txheej tooj liab clad Circuit Court txheej. Nws yog cov khoom siv hluav taws xob hlau hluav taws xob uas yog cov khoom siv hluav taws xob, uas muaj cov txheej txheem thermal rwb thaiv tsev, hlau phaj, thiab cov ntawv hlau. Nws muaj qhov tshwj xeeb sib nqus conductivity, zoo heev tshav kub dissipation, siab mechanical zog, thiab kev ua tau zoo.

Cov hlau rwb thaiv tsev substrate yog tsim los ntawm cov hlau substrate txheej, ib txheej rwb thaiv tsev, thiab tooj liab clad Circuit Court txheej. Sab saum toj txheej yog tooj liab clad Circuit Court txheej, uas pib muaj ib txheej ntawm tooj liab. Raws li cov kev xav tau ntawm kev sib txuas hluav taws xob, lub Circuit Court tuaj yeem raug corroded rau hauv qhov yuav tsum tau ua. Lub hwj chim transistor core, tsav tsheb tswj nti, thiab lwm yam tuaj yeem ncaj qha mus rau ntawm cov tooj liab clad Circuit Court txheej. Txhawm rau kom yooj yim vuam thiab tiv thaiv oxidation, cov ntaub qhwv ntsej yog coated nrog Ti, Pt, Cu, Au thiab lwm yam kub nyias zaj duab xis, nrog thickness ntau thiab tsawg ntawm 35, 50, 70105140 microns; Cov txheej txheem nruab nrab yog ib txheej txheej nruab nrab, feem ntau yog ua los ntawm epoxy iav fiber ntau daim ntaub nplaum nrog cov thermal conductivity zoo, epoxy resin, los yog organic dielectric zaj duab xis ntim nrog cov ntaub ntawv ceramic. Nws cov tuab yog muab faib ua plaub qhov tshwj xeeb: 50, 75, 100, 150 microns.

High zaus PCB pawg thawj coj saib yog hais txog ib yam tshwj xeeb ntawm Circuit Court board nrog high electromagnetic zaus, siv nyob rau hauv lub teb ntawm high zaus (frequency ntau dua 300MHz los yog wavelength tsawg dua 1 meter) thiab microwave (ntau zaus ntau dua 3GHz los yog wavelength tsawg dua 0.1 meter) . Nws yog lub rooj tsav xwm hauv lub tshuab hluav taws xob uas tsim los ntawm microwave substrate tooj liab clad board siv qee cov txheej txheem ntawm cov khoom siv hluav taws xob zoo tib yam los yog cov txheej txheem tshwj xeeb.

Qhov hnyav tooj liab PCB ntu yog ib feem ntawm peb cov khoom. Txhawm rau txhawb cov ntu tseem ceeb no, peb tab tom tsim kev sib raug zoo nrog ntau lub Hoobkas uas tau ua tib zoo xaiv hauv peb cov txheej txheem kev xa khoom.

HDI PCB (High Density Interconnect PCB) yog lub rooj tsav xwm sib txuas sib txuas siab uas siv los ua kom muaj kev sib txuas ntau dua thiab qhov ntom ntom dua hauv qhov chaw tsawg. Nws feem ntau yog siv hauv cov khoom siv hluav taws xob nyuaj xws li smartphones, ntsiav tshuaj, thiab khoos phis tawj.

Lub HDI PCB Circuit Board tau txais cov txheej txheem ntawm kev tsim cov thev naus laus zis, xws li micro circuits, qhov muag tsis pom kev faus qhov, embedded resistors, thiab interlayer interconnections. Cov thev naus laus zis no tso cai rau HDI PCBs kom ua tiav kev sib txuas ntau dua thiab cov qauv tsim hluav taws xob ntau dua hauv qhov me me.

Vim yog cov txheej txheem tsim khoom thiab cov kev xav tau siab ntawm HDI PCB Circuit Board, cov nqi tsim khoom ntawm HDI PCB feem ntau yog siab dua piv rau cov khoom siv hluav taws xob zoo tib yam. Qhov no yog vim HDI PCBs xav tau kev siv cov txheej txheem nyuaj thiab cov cuab yeej siv siab heev kom ua tiav lawv qhov ceev thiab qhov nyuaj.

Tsis tas li ntawd, kev tsim thiab kev teeb tsa ntawm HDI PCB Circuit Court boards kuj yuav tsum tau muaj peev txheej engineers ntau dua thiab lub sijhawm peev los xyuas kom meej qhov kev ntseeg tau thiab kev ua haujlwm ntawm lub circuit.

Yog li, feem ntau, cov nqi tsim khoom ntawm HDI PCB Circuit Board yog siab dua li ntawm cov khoom siv hluav taws xob. Txawm li cas los xij, tus nqi tshwj xeeb cuam tshuam rau qhov tseem ceeb kuj cuam tshuam los ntawm ntau lwm yam, xws li cov txheej txheem yuav tsum tau muaj, kab dav / qhov sib txawv, qhov xav tau aperture, thiab lwm yam.

FPC (Flexible Circuit Board) yog ib hom PCB, tseem hu ua "soft board". FPC yog ua los ntawm cov ntaub ntawv hloov tau yooj yim xws li polyimide lossis polyester zaj duab xis, uas muaj qhov zoo ntawm cov kab hluav taws xob siab, lub teeb yuag, nyias thickness, yooj, thiab siab yooj. Nws tuaj yeem tiv taus ntau lab ntawm cov dynamic khoov yam tsis muaj kev puas tsuaj rau cov xov hlau, thiab tuaj yeem txav mus los thiab nthuav dav raws li qhov yuav tsum tau ua kom tiav kev sib dhos peb sab, ua tiav kev sib koom ua ke ntawm cov khoom sib dhos thiab cov xaim txuas. Nws muaj qhov zoo uas lwm hom Circuit Court boards tsis tuaj yeem sib piv.

FPC yog dav siv nyob rau hauv txhua yam khoom siv rhiab heev vim nws yooj yooj yim tso cai rau Circuit Court boards tiv thaiv kev co. Flexible PCBs yog qhov ruaj khov dua li cov khoom siv hluav taws xob ib txwm muaj, tab sis lawv cov txheej txheem tsim khoom yog rhiab heev thiab nyuaj.

Ob-sided PCB board yog ib yam tseem ceeb ntawm PCB board nyob rau hauv lub khw muag khoom Circuit Court. Muaj ob sab PCB boards nrog hlau puag, Hi-Tg hnyav tooj liab ntawv ci Circuit Court board, tiaj thiab winding ob-sided PCB boards, high-frequency PCB boards, mixed dielectric puag high-frequency double-sided PCB boards, thiab lwm yam. yog tsim rau ntau yam kev lag luam high-tech xws li kev sib txuas lus, kev siv hluav taws xob, khoos phis tawj, kev tswj hwm kev lag luam, cov khoom siv digital, cov cuab yeej tshawb fawb thiab kev kawm, khoom siv kho mob, tsheb, kev tiv thaiv aerospace, thiab lwm yam.

Ntau tus neeg siv ntawm PCBs pom ceramic PCBs muaj qhov zoo dua li cov PCBs ua los ntawm lwm cov ntaub ntawv. Qhov kom zoo dua no yog vim cov ceramic PCBs muab cov khoom tsim nyog rau cov khoom siv hluav taws xob nrog cov thermal conductivity thiab qis coefficient ntawm thermal expansion (CTE).

Ceramic PCB yog qhov muaj ntau yam thiab tuaj yeem hloov kho ib txwm siv PCB nrog cov qauv tsim tsawg dua thiab kev ua haujlwm tau zoo. Koj tuaj yeem siv lawv hauv ntau yam khoom, xws li cov hluav taws xob hluav taws xob siab, chip-on-board modules thiab cov sensors sib thooj.