PCB raws li daim ntawv thov pawg thawj coj los cais tawm ib lub vaj huam sib luag, ob chav vaj huam sib luag, multilayer PCB; Raws li cov khoom siv, muaj lub rooj tsav xwm yooj yim PCB (hloov pauv tau yooj yim), PCB pawg tswj hwm nruj, hloov pauv tau yooj yim PCB pawg thawj coj (pawg tswj hwm hloov tau yooj yim), thiab lwm yam. Luam Circuit Board (PCB), tseem hu ua Printed Circuit Board, yog cov khoom siv hluav taws xob tseem ceeb, yog lub cev txhawb nqa cov khoom siv hluav taws xob, yog tus muab cov khoom siv hluav taws xob txuas hluav taws xob, vim nws tau tsim los ntawm tshuab luam ntawv hluav taws xob, yog li nws kuj yog hu ua Printed Circuit Board. PCB yog ib daim phaj nyias uas muaj cov khoom siv sib txuas thiab lwm yam khoom siv hluav taws xob.

I. Kev faib tawm raws li tus lej txheej txheej

Faib rau hauv ib lub vaj huam sib luag, ob chav vaj huam sib luag thiab txheej txheej ntau txheej. Cov rooj sib tham ntau txheej yog feem ntau yog 3-6 txheej, thiab cov rooj sib txig sib luag sib luag tuaj yeem ncav ntau dua 10 txheej.

(1) Tib lub vaj huam sib luag

Ntawm daim phiaj xwm txheej luam tawm yooj yim, cov ntu tau mloog zoo rau ntawm ib sab thiab cov xov hlau tau tsom mus rau lwm qhov. Vim tias cov xov hlau zoo nkaus li tsuas yog ib sab, daim ntawv luam tawm Circuit board tau hu ua ib lub vaj huam sib luag. Kev siv hluav taws xob thaum ntxov siv hom kev sib tham ntawm lub rooj tsav xwm no vim tias muaj ntau txoj kev txwv nruj rau kev tsim qauv Circuit Court ntawm ib lub vaj huam sib luag (vim tias tsuas muaj ib sab xwb, cov hlua thaiv tsis tuaj yeem hla thiab yuav tsum tau khiav hauv txoj kev sib cais).

PCB dab tsi yog kev faib tawm ntawm cov laug cam luam tawm

(2) Ob chav panels

Lub rooj tsav xwm hluav taws xob muaj cov xov hlau ntawm ob sab. Txhawm rau kom cov xov hlau ntawm ob sab sib txuas lus, yuav tsum muaj kev sib txuas zoo ntawm ob sab, uas yog hu ua phau ntawv qhia. Phau ntawv qhia qhov yog qhov me me hauv cov ntawv luam tawm Circuit Board, tau sau lossis coated nrog hlau, uas tuaj yeem txuas nrog cov xov hlau ntawm ob sab. Ob chav vaj huam sib luag tuaj yeem siv rau ntawm cov kab hluav taws xob sib txawv ntau dua li ib lub vaj huam sib luag vim tias thaj chaw loj dua ob zaug thiab cov hlua tuaj yeem sib cuam tshuam (nws tuaj yeem raug mob rau sab nraud).

PCB dab tsi yog kev faib tawm ntawm cov laug cam luam tawm

(3) Multilayer board

Txhawm rau txhawm rau txhawm rau thaj tsam uas tuaj yeem txuas tau, cov laug cam ntau txheej siv ntau dua ib leeg lossis ob tog thaiv kab thaiv. Cov laug cam ntau tus neeg siv tus lej ntawm ob chav vaj huam sib luag, thiab muab ib txheej insulating nruab nrab ntawm txhua txheej ntawm pawg thawj coj tom qab sib txuas. Tus nab npawb ntawm cov txheej txheem ntawm lub rooj tsav xwm sawv cev rau tus lej ntawm cov txheej txheem ywj pheej, feem ntau yog cov lej ib txheej, thiab muaj ob txheej sab nraud.

PCB dab tsi yog kev faib tawm ntawm cov laug cam luam tawm

Ob, raws li hom substrate

Cov kab hluav taws xob hloov pauv tau yooj yim, cov laug cam sib dhos thiab cov ntawv sib dhos ua tau yooj yim.

(1) Saj zawg zog PCB pawg thawj coj saib (hloov pauv tau)

Cov laug cam yooj yim yog luam tawm cov laug cam uas tsim los ntawm cov khoom hloov pauv tau yooj yim, uas muaj qhov zoo ntawm kev khoov kom yooj yim los sib dhos cov khoom siv hluav taws xob. FPC tau siv dav hauv kev ua haujlwm huab cua, tub rog, kev sib txuas lus hauv xov tooj, cov khoos phis tawj nqa tau, lub khoos phis tawj, PDA, cov koob yees duab digital thiab lwm yam haujlwm lossis cov khoom lag luam.

PCB dab tsi yog kev faib tawm ntawm cov laug cam luam tawm

(2) Rigid PCB pawg thawj coj saib

Nws yog ua los ntawm daim ntawv puag (feem ntau yog siv rau ib sab) lossis iav daim ntaub puag (feem ntau siv rau ob sab thiab ntau txheej), ua ntej tsis tau pleev xim phenolic lossis epoxy cob, ib lossis ob sab ntawm cov nplaim nplaum nrog cov ntawv tooj liab thiab ces laminated kho. Hom PCB tooj liab-clad foil board no, peb hu nws ua pawg nruj. Tom qab ntawd ua rau hauv PCB, peb hu nws nruj PCB txhav board tsis yooj yim rau khoov, muaj lub zog thiab tawv ntawm cov khoom siv tawv ua los ntawm cov ntawv luam tawm Circuit Board, nws qhov zoo yog tias nws tuaj yeem txuas nrog cov khoom siv hluav taws xob los muab kev txhawb nqa

PCB dab tsi yog kev faib tawm ntawm cov laug cam luam tawm

(3) Rigid-flexible PCB board (txhav-yooj ywm PCB board)

Rigid-flexible bonded board hais txog daim ntawv luam tawm Circuit board uas muaj ib lossis ntau qhov chaw nruj thiab yoog raws, suav nrog cov laug cam thiab cov laug cam hloov pauv laminated ua ke. Qhov kom zoo dua ntawm cov ntawv sib dhos ua ke tau yooj yim yog tias nws tuaj yeem tsis tsuas yog muab kev txhawb nqa ntawm cov ntawv khov khov, tab sis kuj tseem muaj cov yam ntxwv khoov ntawm cov phaj hloov pauv, uas tuaj yeem ua tau raws li qhov xav tau ntawm kev sib dhos peb sab.