Yog pcb ua tiav thaum cov txheej txheem tiav thiab tsis muaj teeb meem pom nrog kev sib txuasThiab txuas?
Cov lus teb, ntawm chav kawm, yog tsis muaj. Coob tus pib tshiab, txawm tias suav nrog qee cov engineers, vim muaj sijhawm tsawg lossis siab luv lossis ntseeg,
zoo li yuav maj mam, tsis quav ntsej cov kev kuaj xyuas lig, muaj qee cov kab muaj tsawg heev, xws li kab dav tsis txaus, Cheebtsam luam ntawv
Siab thiab lub qhov hluav taws xob tau dhau mus ze, phiaj xwm nyob rau hauv lub voj, thiab lwm yam, ua rau cov teeb meem hluav taws xob lossis txheej txheem ua si board, khib. Yog li ntawd,
Kev kuaj xyuas tom qab yog ib kauj ruam tseem ceeb tom qab tus PCB tau tso tawm.
1. Cov ntim ntim
(1) phuam ntub. Yog tias nws yog lub cuab yeej tshiab, los kos lawv tus kheej cov pob pob, xyuas kom meej tias qhov kev sib tw yog qhov tsim nyog. Thawb cov ntaub ntawv ncaj qha cuam tshuam kev vuam ntawm Cheeb Tsam.
(2) ntawm loj (yog tias muaj). Rau cov ntsaws pab kiag li yuav tsum tau khaws cov npoo uas muaj txaus, feem ntau tsis tsawg dua 0.2 hli yog qhov tsim nyog dua.
(3) Qhia tawm ntawm lub vijtsam lo lo ntxhuav. Lub contour vijtsam luam ntawv ntawm cov khoom siv yuav tsum yog
loj dua qhov tseeb me me kom ntseeg tau tias cov cuab yeej tuaj yeem nruab tau yooj yim.
2. Layout
(1) IC yuav tsum tsis txhob nyob ze ntawm lub rooj tsavxwm.
(2) Cov khoom siv ntawm Circuit Court hauv tib lub pob yuav tsum tau muab tso rau ib leeg. Piv txwv li, lub capouspling capacitor yuav tsum yog
Ze rau lub zog fais fab PIN ntawm IC, thiab cov khoom siv uas tau ua tiav cov kev ua haujlwm zoo ib yam yuav tsum muab tso rau hauv tib thaj chaw nrog cov lus qhia meej
kom ntseeg tau tias qhov kev ua tau zoo ntawm cov haujlwm.
(3) Teem lub qhov chaw nyob raws li qhov teeb tsa tiag tiag. Qhov (socket) txuas nrog rau lwm cov qauv los ntawm cov hmoov txhuas, raws li tus qauv qauv tiag tiag,
Txhawm rau nruab tau yooj yim, feem ntau siv cov kev qhia ze ntawm lub taub hau, thiab feem ntau nyob ze board ntug.
(4) Ua tib zoo mloog rau qhov hluav taws xob. Qhov (socket) xav tau kev taw qhia, yog tias cov kev taw qhia yog rov qab, cov hlau yuav tsum tau ua nws. Rau lub tiaj tus kheej, cov kev taw qhia ntawm lub qhov (socket) yuav tsum tau mus rau sab nraud ntawm lub rooj tsavxwm.
(5) Yuav tsum tsis muaj cov khoom siv hauv qhov chaw tawm.
(6) Cov hauv kev cuam tshuam yuav tsum tau nyob deb ntawm qhov kev nkag siab. Kev kub ceev teeb liab, kev kub ceev moos los yog siab tam sim no nyem cov teeb meem, xws li rov pib dua Circuit Court (analog Circuit). Lawv tuaj yeem sib cais los ntawm ib qho av.