PCB Circuit Board Common Sense uas PCB neeg yuav tsum nkag siab

Printed circuit board (PCB), tseem hu ua circuit board, yog ib qho tseem ceeb hauv hluav taws xob thiab hu ua "niam ntawm cov khoom siv hluav taws xob". Cov hauv qab no yog qhov kev nkag siab zoo ntawm PCB Circuit Board uas cov neeg PCB yuav tsum nkag siab:

1. Cov khoom siv hluav taws xob niaj hnub yog cov duab kos duab thiab cov duab kos los ntawm kev luam ntawv resists, yog li lawv raug hu ua cov ntawv luam tawm Circuit Board thiab cov ntawv luam tawm. Tam sim no, feem ntau lub rooj tsav xwm hluav taws xob tau txuas nrog cov khoom siv los tiv thaiv corrosion (laminate lossis txheej), thiab tom qab raug thiab kev loj hlob, lub rooj tsav xwm hauv Circuit Court tuaj yeem etched.

2. Lub rooj tsav xwm Circuit Court tau muab faib ua ib sab, ob sab thiab ntau txheej boards. Ntawm qhov yooj yim tshaj plaws PCB, cov khoom yog concentrated ntawm ib sab thiab cov xov hlau yog concentrated rau sab nraud. Hom PCB no yog hu ua ib lub rooj tsav xwm ib leeg. Lub vaj huam sib luag ob sab muaj tooj liab cladding thiab cov kab ntawm ob sab, thiab tuaj yeem ua cov kab nruab nrab ntawm ob txheej los ntawm vias los tsim cov kev sib txuas uas xav tau. Multilayer board yog hais txog lub rooj tsavxwm luam ntawv nrog ntau tshaj peb txheej txheej txheej txheej thiab cov ntaub ntawv insulating ntawm lawv, thiab cov qauv kev sib txuas yog sib txuas raws li qhov xav tau.

3. Lub rooj tsav xwm hauv Circuit Court feem ntau yog tsim los ntawm cov ntaub qhwv, los ntawm qhov, mounting qhov, xov hlau, cov khoom siv, cov khoom sib txuas, cov muab tub lim, cov khoom siv hluav taws xob, thiab lwm yam. Lub luag haujlwm tseem ceeb ntawm txhua yam yog raws li hauv qab no:

(1) Pad: Lub qhov hlau rau cov khoom siv soldering.

(2) Los ntawm qhov: suav nrog hlau los ntawm qhov thiab tsis yog hlau los ntawm qhov, qhov twg hlau los ntawm qhov yog siv los txuas pins ntawm cov khoom ntawm txhua txheej.

(3) Mounting qhov: siv los kho lub rooj tsav xwm Circuit Court.

(4) Tus neeg xyuas pib: Lub network ntawm cov yeeb yaj kiab tooj liab siv los txuas cov pins ntawm cov khoom.

(5) Connector: Siv los txuas cov khoom nruab nrab ntawm lub rooj tsav xwm hauv Circuit Court.

(6) Filler: Siv tooj liab xaim rau hauv av network tuaj yeem txo qhov impedance.

(7) Hluav taws xob ciam teb: siv los txiav txim qhov loj ntawm lub rooj tsav xwm Circuit Court.

Nco tseg: Tag nrho cov khoom ntawm lub rooj tsavxwm yuav tsum tsis pub dhau ntawm tus ciam teb.

4. Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm lub rooj tsavxwm luam tawm yog: siv lub rooj tsavxwm-raws li cov khoom siv insulating los cais cov txheej txheej tooj liab txheej txheej, kom cov dej ntws tam sim no nyob rau hauv ntau yam khoom raws li txoj kev tsim ua ntej kom ua tiav cov haujlwm xws li kev ua haujlwm, amplification. , attenuation, modulation, Demodulation, encoding thiab lwm yam haujlwm.