Dab tsi yog PCB kev paub yooj yim

Lub rooj tsav xwm hauv Circuit Court (tseem hu ua PCB board) yog ib qho qauv nrog cov xov hlau luam tawm. Nws lub luag haujlwm tseem ceeb yog txhawm rau txo qhov chaw nyob ntawm cov xov hlau thiab teeb tsa cov xov hlau hauv qhov chaw pom tseeb.

Lub rooj tsav xwm hauv Circuit Court yog qhov tshwm sim ntawm kev ua ntawm tooj liab clad laminate, uas yog tsim los ntawm kev npog ib daim ntawm tooj liab ntawv ci rau ntawm qhov chaw ntawm insulating substrate.

Copper clad laminates feem ntau ua tiav siv etching. Cov txheej txheem yog siv cov khoom siv corrosion-resistant rau cov kab kom khaws cia rau ntawm tooj liab clad laminate, thiab tom qab ntawd siv cov tshuaj tua kab mob kom tshem tawm qhov seem, thiab tus so yog cov ntawv ci tooj liab siv los ua cov hlau.

Thaum saib ntawm lub rooj tsavxwm tiag tiag, muaj qhov chaw uas cov xaim dav dav, txawm tias ib daim loj (feem ntau yog cov xaim hauv av). Qhov no yog ua raws li cov qauv tam sim no=voltage/resistance, txo cov nyhuv ntawm qhov tsis kam ntawm cov hlau ntawm qhov loj ntawm qhov tam sim no. Feem ntau qhov kev sib raug zoo ntawm kab dav yog: av xaim> fais fab hlau> teeb liab hlau.

Yuav ua li cas kom tau txais PCB board?

Feem ntau, PCB daim duab kos tsis yog kos ncaj qha rau hauv ib kauj ruam, tab sis lub Circuit Court yog thawj kos thiab tom qab ntawd hloov mus rau hauv daim duab PCB.

Hauv qab no yog ib qho piv txwv ntawm PCB uas siv micro usb los teeb lub teeb LED.

Kauj ruam 1: Daim duab Circuit Court

Kauj ruam 2: Daim duab PCB

Kauj ruam 3: Saib ua ntej ntawm lub rooj tsavxwm hauv 2D:

Kauj ruam 4: Saib ua ntej hauv 3D:

Feem ntau, cov khoom yog nruj nreem txuas rau lub rooj tsav xwm hauv Circuit Court kom txo qhov ntim, thiab lawv tau soldered nyob rau sab nraud ntawm lub rooj tsavxwm, yog li yuav muaj cov ntaub qhwv nyob tom qab. Tom qab lub qhov yog xuas nrig ntaus, txij li thaum nruab nrab ntawm lub rooj tsavxwm yog ib txheej insulating, nws yog ib qhov tsim nyog yuav tsum tau coated lub qhov phab ntsa nrog ib tug hlau txheej thiab txuas mus rau lub ncoo nyob rau sab nraum qab rau conduction.

Kauj Ruam 5: Ib feem ntawm PCB

Device: Cov khoom xyaw. Ntawm PCB lub teeb pom kev zoo, cov cuab yeej tshwm nyob rau hauv daim ntawv ntawm ncoo ntxiv rau lo lo ntxhuav npo.

Pad: Lub ncoo muaj lub qhov taub thiab cov ntawv nyiaj nyob ib puag ncig.

Trace: kab.

Ntawm: Ib lub qhov uas txuas cov xov hlau hla cov khaubncaws sab nraud povtseg.

Silk screen: Kos cov ntaub ntawv ntawm lub rooj tsavxwm nrog cov lej lossis cov ntawv.

Solder Mask: Tsis txhob ua tsis zoo-soldering nyob ib sab tab sis txiav pins thaum lub sij hawm soldering.