Kev cai Fr-4 Circuit Board Pcb Board

Cov cai yooj yim ntawm PCB Layout

1. Layout raws li lub Circuit Court module, cov Circuit Court muaj feem xyuam uas paub txog tib lub luag hauj lwm yog hu ua ib tug module, lub Cheebtsam nyob rau hauv lub Circuit Court module yuav tsum tau txais lub hauv paus ntsiab lus ntawm ze tshaj concentration, thiab cov digital circuits thiab analog circuits yuav tsum tau sib cais;
2. Cov khoom siv thiab cov khoom siv yuav tsum tau mounted nyob rau hauv 1.27mm nyob ib ncig ntawm lub qhov uas tsis yog-mounting qhov xws li positioning qhov thiab txheem qhov, thiab tsis muaj cov khoom yuav tsum tau mounted nyob rau hauv 3.5mm (rau M2.5) thiab 4mm (rau M3) nyob ib ncig ntawm mounting qhov xws li ntsia hlau;
3. Tsis txhob tso vias hauv qab cov khoom xws li kab rov tav mounted resistors, inductors (plug-ins), thiab electrolytic capacitors kom tsis txhob luv luv Circuit Court ntawm lub vias thiab lub plhaub tiv thaiv tom qab yoj soldering;
4. Qhov kev ncua deb ntawm sab nraud ntawm cov khoom siv thiab cov ntug ntawm lub rooj tsavxwm yog 5 hli;
5. Qhov kev ncua deb ntawm sab nraud ntawm lub mounted tivthaiv thiab sab nraud ntawm cov khoom uas nyob ib sab yog ntau tshaj 2 hli;
6. Cov khoom siv plhaub hlau thiab cov khoom siv hlau (cov thawv thaiv, thiab lwm yam) tsis tuaj yeem kov lwm cov khoom, thiab tsis tuaj yeem nyob ze rau cov ntawv luam tawm thiab cov ntaub qhwv, thiab qhov sib nrug yuav tsum siab dua 2 hli.Qhov luaj li cas ntawm qhov chaw nyob, fastener installation qhov, elliptical qhov thiab lwm yam square qhov nyob rau hauv lub phaj yog ntau tshaj 3 hli ntawm ntug ntawm lub phaj;
7. Cov khoom cua sov tsis tuaj yeem nyob ze ntawm cov hlau thiab cov khoom thermal;cov cua kub cua sov yuav tsum tau muab sib npaug;
8. Lub qhov (socket) lub hwj chim yuav tsum tau teem ib ncig ntawm cov ntawv luam tawm kom ntau li ntau tau, thiab cov chaw nres tsheb npav txuas nrog lub qhov hluav taws xob yuav tsum tau teem rau tib sab.Kev saib xyuas tshwj xeeb yuav tsum tsis txhob teeb tsa lub qhov hluav taws xob thiab lwm yam khoom siv sib txuas ntawm cov khoom sib txuas, txhawm rau pab txhawb kev sib txuas ntawm cov sockets thiab cov khoom sib txuas, thiab tsim thiab khi cov hlua hluav taws xob.Qhov kev ncua deb ntawm lub qhov hluav taws xob qhov hluav taws xob thiab cov vuam txuas yuav tsum raug txiav txim siab los pab txhawb kev ntxig thiab tshem tawm cov ntsaws hluav taws xob;
9. Kev npaj ntawm lwm yam khoom:
Tag nrho cov khoom IC yog unilaterally aligned, lub polarity ntawm polar Cheebtsam yog kom meej meej cim, thiab lub polarity marking nyob rau tib lub board luam ntawv yuav tsum tsis txhob ntau tshaj ob cov lus qhia.Thaum ob txoj kev tshwm sim, ob qho kev taw qhia yog perpendicular rau ib leeg;
10. Cov xaim ntawm lub rooj tsavxwm yuav tsum ua kom nruj.Thaum qhov sib txawv hauv qhov sib txawv yog qhov loj heev, nws yuav tsum tau sau nrog Mesh tooj liab ntawv ci, thiab mesh yuav tsum muaj ntau dua 8mil (lossis 0.2 hli);
11. Yuav tsum tsis txhob muaj qhov dhau ntawm qhov ntawm cov ntaub qhwv ntsej, kom tsis txhob poob ntawm cov tshuaj txhuam thiab ua rau cov khoom siv soldered.Cov kab teeb liab tseem ceeb tsis pub dhau ntawm lub qhov (socket pins);
12. Lub thaj yog unilaterally aligned, tus cwj pwm kev taw qhia yog tib yam, thiab ntim cov kev taw qhia yog tib yam;
13. Rau cov khoom siv nrog polarity, kev taw qhia ntawm polarity cim rau ntawm tib lub rooj tsavxwm yuav tsum ua kom zoo ib yam li qhov ua tau.

PCB Component Routing Cov Cai

1. Nyob rau hauv qhov chaw uas qhov chaw thaiv qhov hluav taws xob tsawg dua los yog sib npaug ntawm 1 hli ntawm ntug ntawm PCB, thiab nyob rau hauv 1 hli nyob ib ncig ntawm lub qhov mounting, txwv tsis pub txuas;
2. Cov kab hluav taws xob yuav tsum dav li ntau tau thiab yuav tsum tsis pub tsawg tshaj 18mil;lub teeb liab kab dav yuav tsum tsis pub tsawg tshaj 12mil;cpu input thiab tso zis kab yuav tsum tsis txhob tsawg tshaj li 10mil (los yog 8mil);kab sib nrug yuav tsum tsis pub tsawg tshaj 10mil;
3. Qhov ib txwm dhau ntawm tsis pub tsawg dua 30mil;
4. Dual in-line: ncoo 60mil, aperture 40mil;
1/4W resistor: 51 * 55mil (0805 nto mount);thaum nyob rau hauv kab, lub ncoo yog 62mil, thiab lub aperture yog 42mil;
Electrodeless capacitor: 51 * 55mil (0805 nto mount);thaum ntsaws ncaj qha, lub ncoo yog 50mil, thiab lub aperture yog 28mil;
5.Nco ntsoov tias cov xaim hluav taws xob thiab cov xaim hauv av yuav tsum yog radial li sai tau, thiab cov teeb liab xaim yuav tsum tsis txhob looped.

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