Lub hauv paus txheej txheem ntawmPCB Circuit Boardtsim hauv SMT nti ua yuav tsum tau saib xyuas tshwj xeeb.Ib lub hom phiaj tseem ceeb ntawm kev tsim hluav taws xob hluav taws xob yog muab lub rooj sib tham rau PCB Circuit Board tsim thiab npaj lub hauv paus rau PCB board tsim.Cov txheej txheem tsim ntawm ntau txheej PCB pawg thawj coj saib yog qhov pib zoo ib yam li cov qauv tsim ntawm ib lub rooj tsav xwm PCB zoo tib yam.Qhov txawv yog tias cov xaim hluav taws xob nruab nrab ntawm cov teeb liab txheej thiab kev faib tawm ntawm cov hluav taws xob sab hauv yuav tsum tau nqa tawm.Ua ke, kev tsim ntawm ntau txheej PCB Circuit Court board yog qhov zoo ib yam.Muab faib ua cov kauj ruam hauv qab no:
1. Kev npaj Circuit Court board feem ntau yog npaj rau lub cev loj ntawm PCB pawg thawj coj saib, daim ntawv ntim ntawm cov khoom, cov txheej txheem kev teeb tsa, thiab cov qauv ntawm lub rooj tsavxwm, uas yog, ib txheej txheej boards, ob txheej txheej boards, thiab ntau txheej. lub rooj tsavxwm.
2. Kev teeb tsa ua haujlwm, feem ntau yog hais txog kev ua haujlwm ib puag ncig kev teeb tsa thiab kev ua haujlwm txheej txheej txheej txheej.Kev teeb tsa raug thiab tsim nyog ntawm PCB ib puag ncig tsis tuaj yeem nqa tau yooj yim rau lub rooj tsav xwm Circuit Court tsim thiab txhim kho kev ua haujlwm.
3. Cov txheej txheem txheej txheem thiab kev hloov kho.Tom qab ua haujlwm ua ntej tiav lawm, lub rooj sib tham hauv lub network tuaj yeem raug xa mus rau hauv pcb, lossis lub rooj sib tham hauv lub network tuaj yeem raug xa ncaj qha rau hauv daim duab schematic los ntawm kev hloov kho pcb.Cov txheej txheem txheej txheem thiab kev hloov kho yog cov haujlwm tseem ceeb hauv PCB tsim, uas cuam tshuam ncaj qha rau kev ua haujlwm tom ntej xws li kev xaim thiab hluav taws xob sab hauv txheej segmentation.
4. Kev teeb tsa cov kab hluav taws xob feem ntau teeb tsa ntau yam tshwj xeeb rau kev xaim hluav taws xob, xws li hlau dav, kab sib txuas sib txuas, kev nyab xeeb ntawm cov xov hlau thiab cov ntaub qhwv, thiab ntawm qhov loj me.Tsis muaj teeb meem dab tsi thaiv txoj kev raug saws, cov kev cai thaiv kab yog tsim nyog.Ib kauj ruam tseem ceeb, txoj cai xaim hluav taws xob zoo tuaj yeem ua kom muaj kev nyab xeeb ntawm Circuit Board routing, ua raws li cov txheej txheem tsim khoom, thiab txuag nqi.
5. Lwm qhov kev pabcuam pabcuam, xws li tooj liab txheej thiab teardrop filling, nrog rau kev ua cov ntaub ntawv xws li cov ntawv tshaj tawm thiab txuag luam ntawv.Cov ntaub ntawv no tuaj yeem siv los xyuas thiab hloov kho PCB Circuit Board, thiab tseem tuaj yeem siv los ua cov npe ntawm cov khoom yuav khoom.
Component routing cov cai
1. Tsis pub xaim tsis pub dhau thaj tsam ≤1mm ntawm ntug ntawm PCB pawg thawj coj saib thiab tsis pub dhau 1 hli nyob ib ncig ntawm lub qhov mounting;
2. Cov kab hluav taws xob yuav tsum dav li qhov ua tau thiab yuav tsum tsis pub tsawg dua 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. Ib txwm ntawm qhov tsis muaj tsawg dua 30mil;
4. Dual in-line plug: ncoo 60mil, aperture 40mil;1/4W resistor: 51 * 55mil (0805 nto mount);thaum ntsaws rau hauv, ncoo 62mil, aperture 42mil;electrodeless capacitor: 51 * 55mil (0805 nto mount);Thaum tso ncaj qha, lub ncoo yog 50mil thiab lub qhov taub yog 28mil;
5. Ua tib zoo saib xyuas tias cov kab hluav taws xob thiab cov xaim hauv av yuav tsum yog radial li sai tau, thiab cov kab teeb liab yuav tsum tsis txhob raug xa mus rau hauv cov voj voog.