Muaj ntau PCB tsim cov neeg nyiam, tshwj xeeb tshaj yog cov pib tshiab, tsis nkag siab txog ntau txheej txheej hauv PCB tsim. Lawv tsis paub nws txoj haujlwm thiab kev siv. Nov yog ib qho lus piav qhia rau txhua tus neeg:

1. Cov txheej txheem txheej txheem, raws li lub npe implies, yog cov tsos ntawm tag nrho cov PCB board rau txhua yam shaping. Qhov tseeb, thaum peb tham txog txheej txheej tshuab, peb txhais tau tias tag nrho cov tsos ntawm PCB pawg thawj coj saib. Nws tseem tuaj yeem siv los teeb tsa qhov ntev ntawm lub rooj tsav xwm hauv Circuit Court, cov ntaub ntawv cim, cov cim kev sib dhos, cov lus qhia sib dhos thiab lwm yam ntaub ntawv siv tshuab. Cov ntaub ntawv no txawv nyob ntawm qhov yuav tsum tau ntawm lub tuam txhab tsim lossis PCB chaw tsim khoom. Tsis tas li ntawd, cov txheej txheem txheej txheem tuaj yeem muab ntxiv rau lwm cov khaubncaws sab nraud povtseg kom tso tawm thiab tso tawm ua ke.

2. Tshem tawm txheej (txheej txheej thaiv thaiv), siv los txheeb xyuas thaj chaw uas cov khoom siv thiab cov xaim tuaj yeem muab tso rau hauv pawg thawj coj saib xyuas. Kos ib cheeb tsam kaw rau ntawm txheej txheej no ua qhov chaw zoo rau kev routing. Tsis siv neeg layout thiab routing yog tsis tau sab nraum cheeb tsam no. Cov txheej txheem txwv tsis pub muaj kev cuam tshuam cov ciam teb thaum peb nteg tawm cov yam ntxwv hluav taws xob ntawm tooj liab. Qhov ntawd yog hais tias, tom qab peb thawj zaug txhais cov txheej txheem txwv tsis pub siv hluav taws xob, nyob rau hauv cov txheej txheem xaim yav tom ntej, cov xaim hluav taws xob nrog cov yam ntxwv tsis tuaj yeem tshaj qhov txwv tsis pub txuas. Nyob rau ntawm ciam teb ntawm txheej, feem ntau yog ib tug cwj pwm ntawm kev siv cov Keepout txheej raws li ib tug neeg kho tshuab txheej. Cov qauv no yeej tsis raug, yog li nws pom zoo kom koj ua qhov sib txawv, txwv tsis pub lub Hoobkas yuav tau hloov cov cwj pwm rau koj txhua zaus koj tsim.

3. Txheej teeb liab: Cov teeb liab txheej feem ntau yog siv los npaj cov xov hlau ntawm lub rooj tsav xwm Circuit Court. Nrog rau sab saum toj txheej (sab saum toj txheej), Hauv qab txheej (hauv qab txheej) thiab 30 MidLayer (nruab nrab txheej). Sab saum toj thiab hauv qab cov khaubncaws sab nraud povtseg tso cov khoom siv, thiab cov khaubncaws sab hauv yog routed.

4. Top paste and Bottom paste are the top and bottom pad stencil layers, which are the same size as the pads. This is mainly because we can use these two layers to make the stencil when we do SMT. Just dug a hole the size of a pad on the net, and then we cover the stencil on the PCB board, and apply the solder paste evenly with a brush with solder paste, as shown in Figure 2-1.

5. Sab saum toj thiab hauv qab Solder Qhov no yog lub npog ntsej muag los tiv thaiv cov roj ntsuab los ntawm kev npog. Peb feem ntau hais tias “qhib lub qhov rais”. Cov pa roj carbon monoxide lossis cov xov hlau yog them nrog cov roj ntsuab los ntawm lub neej ntawd. Yog tias peb siv lub npog ntsej muag kom haum Yog tias nws tau tuav, nws yuav tiv thaiv cov roj ntsuab los ntawm kev npog nws thiab nthuav tawm cov tooj liab. Qhov sib txawv ntawm ob tuaj yeem pom hauv daim duab hauv qab no:

6. Internal dav hlau txheej (sab hauv lub hwj chim / hauv av txheej): Hom txheej no tsuas yog siv rau cov boards multilayer, feem ntau yog siv los npaj cov kab hluav taws xob thiab hauv av. Peb hu ua ob-txheej boards, plaub-txheej boards, thiab rau-txheej boards. Tus naj npawb ntawm cov teeb liab txheej thiab lub zog sab hauv / hauv av txheej.

7. Silkscreen txheej: Lub silkscreen txheej yog tsuas yog siv los tso cov ntaub ntawv luam tawm, xws li cov ntsiab lus thiab cov ntawv sau, ntau yam annotation cim, thiab lwm yam. Altium muab ob txheej silk screen, Sab saum toj thiab hauv qab Overlay, tso cov ntaub ntawv lo lo ntxhuav saum toj kawg nkaus thiab hauv qab silk screen cov ntaub ntawv feem.

8. Ntau txheej (ntau txheej): Cov ntaub qhwv thiab nkag mus rau ntawm lub rooj tsav xwm hauv Circuit Court yuav tsum nkag mus rau tag nrho lub rooj tsavxwm thiab tsim kev sib txuas hluav taws xob nrog cov txheej txheem sib txawv. Yog li ntawd, lub kaw lus tau teeb tsa ib qho kev paub daws teeb meem-ntau txheej. Feem ntau, cov ntaub qhwv thiab vias yuav tsum tau teem rau ntawm ntau txheej. Yog tias txheej txheej no raug muab tua, cov ntaub qhwv thiab vias tsis tuaj yeem tshwm sim.

9. Laum Drawing (drilling txheej): txheej txheej drilling muab cov ntaub ntawv drilling thaum lub sij hawm tsim cov txheej txheem Circuit Court (xws li cov ntaub qhwv, vias yuav tsum tau drilled). Altium muab ob txheej txheej drilling: Laum kab sib chaws thiab Laum kos duab.