PCB thev naus laus zis thev naus laus zis siv cov txheej txheem hauv cov ntsiab lus yooj yim, yog thawj zaug luam theej duab lub rooj tsav xwm hauv Circuit Court boards, sau cov ntsiab lus ntawm cov khoom, thiab cov khoom tshem tawm los ua cov npe khoom (BOM) thiab npaj cov khoom yuav khoom, cov duab khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob. rov qab rau hauv PCB daim ntawv daim duab daim duab, thiab tom qab ntawd xa cov ntaub ntawv PCB rau phaj phaj ua Hoobkas, Tom qab lub rooj tsavxwm tau ua tiav, cov khoom siv yuav tau txuas rau PCB pawg thawj coj ua, thiab tom qab ntawd dhau los ntawm PCB kev sim thiab debugging.

PCB counter-copy board countermeasures

Cov kauj ruam tshwj xeeb ntawm PCB luam ntawv board:

Thawj kauj ruam, tau txais PCB, ua ntej tshaj plaws ntawm daim ntawv kom sau tag nrho cov khoom siv ntawm tus qauv, ntsuas, thiab txoj haujlwm, tshwj xeeb tshaj yog cov diode, peb txoj kab yeeb nkab, IC thais taw qhia. Nws yog qhov zoo tshaj los nqa ob daim duab ntawm txoj haujlwm ntawm kev caij ski nrog lub koob yees duab digital. Tam sim no PCB lub rooj tsav xwm hauv Circuit board tau nce ntau dua li saum toj no diode triode qee qhov tsis ua tib zoo saib yooj yim tsis tuaj yeem pom.

Kauj ruam thib ob, tshem tawm tag nrho cov txheej txheej txheej txheej luam tawm, thiab tshem tawm cov tin hauv PAD qhov. Ntxuav PCB nrog cawv thiab muab tso rau hauv lub tshuab luam ntawv uas ntsuas ntawm qhov siab me ntsis pixels kom tau txais cov duab zoo dua. Tom qab ntawd, txhuam cov txheej saum toj thiab hauv qab maj mam maj mam nrog cov ntawv xov dej kom txog thaum zaj duab xis tooj liab ci. Muab lawv tso rau hauv lub tshuab luam ntawv, pib PHOTOSHOP, thiab txhuam ob txheej sib cais ua xim. Nco ntsoov tias PCB yuav tsum tau muab tso rau hauv kab rov tav thiab ntsug nyob rau hauv lub tshuab luam ntawv, txwv tsis pub cov duab scanned siv tsis tau.

Kauj ruam thib peb, kho qhov sib txawv thiab ntxoov ntxoo ntawm daim ntaub, kom ib feem nrog cov yeeb yaj kiab tooj liab thiab ib feem uas tsis muaj tooj liab zaj duab xis sib piv, thiab tom qab ntawd tig kab lus rau dub thiab dawb, xyuas seb kab ntawv puas tseeb, yog tias tsis yog, rov ua dua cov kauj ruam no. Yog tias nws meej, khaws daim duab ua xim dub thiab dawb BMP hom ntawv top.bmp thiab bot.bmp. Yog tias muaj teeb meem nrog daim duab, koj tuaj yeem siv PHOTOSHOP los kho thiab kho nws.

Cov theem plaub yog hloov ob daim BMP cov ntaub ntawv rau hauv PROTEL cov ntaub ntawv feem, thiab hloov ob txheej mus rau hauv PROTEL. Piv txwv li, txoj haujlwm ntawm PAD thiab VIA uas tau dhau los ntawm ob txheej txheej sib xws, qhia tias cov kauj ruam dhau los tau ua tiav zoo. Yog tias muaj qhov txawv txav, rov ua cov kauj ruam thib peb. Yog li ntawd, PCB daim ntawv theej yog qhov ua haujlwm tau zoo heev, vim tias teeb meem me me yuav cuam tshuam rau qhov ua tau zoo thiab qib sib xws tom qab pawg thawj coj theej.

Kauj Ruam 5, hloov TOP txheej BMP rau TOP.PCB, nco ntsoov hloov SILK txheej, uas yog txheej txheej daj, tom qab ntawd koj taug txoj kab ntawm TOP txheej, thiab tso lub cuab yeej raws li cov duab kos ntawm kauj ruam 2. Rho tawm SILK txheej tom qab pleev xim. Rov ua dua kom txog rau thaum txhua txheej tau kos.

Kauj Ruam 6, hauv PROTEL, hu rau saum. PCB thiab bot. PCB, thiab muab lawv tso ua ib daim duab.

Kauj Ruam 7, siv lub tshuab luam ntawv laser luam tawm TOP LAYER thiab BOTTOM LAYER rau zaj duab xis pob tshab (1: 1 piv), muab zaj duab xis tso rau ntawm PCB ntawd thiab sib piv yog tias nws tsis raug, yog nws yog lawm, koj ua tiav.

Ib daim qauv ntawm thawj lub rooj tsavxwm tau tsim, tab sis nws tsuas yog ib nrab ua tiav. Muaj qhov kev sim txawm tias, kev siv tshuab thev naus laus zis uas ntsuas cov ntawv sib dhos zoo ib yam li thawj lub rooj tsavxwm. Yog nws zoo ib yam ces nws yeej ua tiav.

hais: Yog tias nws yog cov txheej txheem ntau txheej tab sis tseem ua tib zoo txhuam rau sab hauv ntawm txheej sab hauv, tib lub sijhawm rov ua qhov thib peb txog qib thib tsib ntawm kev luam cov pawg thawj coj, tau kawg, cov duab ntawm lub npe sib txawv, raws li tus naj npawb ntawm txheej los txiav txim siab, dav dav ob chav vaj huam sib luag theej lub rooj sib txig yog yooj yim dua li txheej txheej txheej, txheej txheej txheej txheem txheej txheem txheej txheem yog qhov tsis raug, Yog li ntawv ntau lub rooj sib tham ntawm pawg thawj coj saib xyuas yuav tsum tau ceev faj tshwj xeeb thiab ua tib zoo saib (sab hauv los ntawm qhov thiab tsis dhau ntawm qhov yog nquag muaj teeb meem).

Ob chav vaj huam sib luag txoj kev luam:

1. Tshawb xyuas cov txheej txheem sab saud thiab qis ntawm lub rooj tsav xwm Circuit Court thiab txuag ob daim duab BMP.

2. Qhib daim theej software QuickPC 2005, nyem “Cov ntaub ntawv” “Qhib puag”, qhib daim duab scan. Nthuav lub vijtsam nrog PAGEUP, saib ncoo, tso ib daim ntaub raws PP, saib kab ntawv raws li kab PT …… Ib yam li menyuam yaus kos duab, kos nws hauv software thiab nyem “Txuag” los tsim cov ntawv B2P.

3. Nyem “Cov Ntaub Ntawv” thiab “Qhib Daim Ntawv Qhia Hauv Paus” kom qhib lub scan daim duab qhia xim ntawm lwm txheej;

4. Nyem “Cov Ntaub Ntawv” thiab “Qhib” qhib cov ntaub ntawv B2P uas tau khaws tseg yav tas los. Peb tuaj yeem pom tias daim ntawv theej tshiab tau muab tso rau ntawm daim duab no – tib lub rooj tsav xwm PCB nrog qhov nyob hauv tib txoj haujlwm, tab sis kev sib txuas hauv Circuit sib txawv. Yog li peb nias “Xaiv” – “Txheej Txheej” txhawm rau tua cov kab saum toj kawg nkaus thiab cov kab lo lo lo ntxhuav ntawm no, tawm tsuas yog ntau txheej ntawm qhov.

5. Lub qhov nyob rau sab saum toj yog nyob rau hauv tib txoj hauj lwm raws li lub qhov nyob rau hauv qab daim duab. Tam sim no peb tuaj yeem taug txoj kab hauv qab li peb tau ua thaum yau. Nyem “Txuag” dua – cov ntaub ntawv B2P tam sim no muaj cov ntaub ntawv nyob rau theem saum thiab hauv qab.

6. Nyem “cov ntaub ntawv” “Export rau PCB cov ntaub ntawv”, koj tuaj yeem tau txais cov ntaub ntawv PCB nrog ob txheej ntawm cov ntaub ntawv, koj tuaj yeem hloov lub rooj tsavxwm lossis schematic daim duab los yog xa ncaj qha mus rau PCB phaj Hoobkas los tsim multilayer board luam txoj kev:

Qhov tseeb, plaub daim ntawv theej theej txhoj tau rov ua dua ob daim duab ob npaug, rau daim ntawv rov ua dua daim ntawv ob npaug …… Cov khaubncaws sab nraud povtseg txaus ntshai vim tias peb tsis tuaj yeem pom cov hlua sab hauv. Lub rooj sib tham ntau txheej txheej, peb yuav pom nws lub ntiaj teb sab hauv li cas? – txheej.

Tam sim no muaj ntau txoj hauv kev rau txheej, muaj cov tshuaj txhuam hniav, tshem tawm cov cuab yeej, tab sis nws yooj yim rau txheej ntau dhau, poob cov ntaub ntawv. Kev paub qhia rau peb tias cov ntawv xuab zeb yog qhov tseeb tshaj plaws.

Thaum peb ua tiav kev luam cov txheej saum toj thiab hauv qab ntawm PCB, peb feem ntau siv cov ntawv xuab zeb los zom cov txheej saum npoo thiab qhia cov txheej sab hauv. Sandpaper yog cov ntawv xuab zeb zoo tib yam muag hauv khw muag khoom kho vajtse, feem ntau yog muab tso rau ntawm PCB, thiab tom qab ntawd tuav cov ntawv xuab zeb, sib npaug rau ntawm PCB (yog tias lub rooj tsavxwm me me, tseem tuaj yeem tso rau ntawm cov ntawv xuab zeb, nrog ib tus ntiv tes tuav PCB) ntawm cov ntawv txhuam txhuam). Lub ntsiab lus yog kom nws du kom nws txawm tias.

Silk screen thiab roj ntsuab feem ntau tau so tawm, tooj liab hlau thiab tooj liab tawv yuav tsum tau so ntau zaus. Feem ntau hais lus, bluetooth board tuaj yeem so hauv ob peb feeb, txog kaum feeb nco; Tau kawg, nrog lub zog ntau dua, nws siv sijhawm tsawg dua; Lub paj muaj zog yuav muaj sijhawm me ntsis ntxiv.

Zeb phaj yog cov phiaj xwm feem ntau siv hauv kev faib tawm tam sim no, tab sis kuj yog kev lag luam tshaj plaws. Peb tuaj yeem nrhiav PCB pov tseg los sim. Qhov tseeb, nws tsis yog technically nyuaj rau grind lub rooj tsavxwm, tab sis nws yog ib qho tho txawv me ntsis. Nws yuav siv qee qhov kev siv zog, thiab tsis tas yuav txhawj xeeb txog kev sib tsoo lub rooj tsavxwm rau koj cov ntiv tes.

PCB daim duab qhia cov nyhuv tshuaj xyuas

Nyob rau hauv tus txheej txheem ntawm PCB layout, tom qab lub system layout tiav lawm, daim duab PCB yuav tsum tau muab tshuaj xyuas seb lub system layout yog tsim nyog thiab seb qhov kev pom zoo yuav ua tau tiav. Feem ntau nws tuaj yeem kuaj xyuas los ntawm cov hauv qab no:

1. Txawm hais tias qhov kev teeb tsa ntawm lub cev tuaj yeem ua kom muaj qhov tsim nyog lossis kev pom zoo, txawm hais tias nws tuaj yeem ua kom ntseeg tau cov kab hluav taws xob, seb nws puas tuaj yeem ua kom muaj kev ntseeg siab ntawm kev ua haujlwm hauv Circuit Court. Thaum lub sij hawm layout, koj yuav tsum muaj ib tug tag nrho kev nkag siab thiab kev npaj ntawm lub teeb liab kev taw qhia thiab lub hwj chim thiab hauv av network.

2. Txawm hais tias qhov loj ntawm lub rooj tsavxwm luam ntawv yog raws li qhov loj ntawm cov txheej txheem kev kos duab, seb nws puas ua tau raws li cov txheej txheem tsim khoom ntawm PCB, thiab seb puas muaj cov cim kev coj cwj pwm. Qhov taw tes no xav tau kev saib xyuas tshwj xeeb, ntau lub PCB Circuit Court layout thiab thaiv yog tsim tau zoo nkauj heev, tsim nyog, tab sis tsis saib xyuas qhov tseeb ntawm qhov chaw sib txuas, ua rau kev tsim ntawm Circuit Court tsis tuaj yeem txuas nrog lwm cov circuits.

3. Tsis muaj qhov tsis sib haum xeeb ntawm cov khoom hauv ob sab thiab qhov chaw peb sab. Ua tib zoo saib xyuas qhov loj ntawm lub cuab yeej, tshwj xeeb tshaj yog qhov siab ntawm lub cuab yeej. Nyob rau hauv lub weld-dawb layout ntawm cov khoom, qhov siab feem ntau tsis tuaj yeem tshaj 3 hli.

4. Tivthaiv layout yog tuab thiab orderly, ntxiab txheej txheem, seb tag nrho daim ntaub. Thaum tso tawm cov khoom, peb yuav tsum tsis tsuas yog xav txog cov kev taw qhia thiab hom teeb liab, thiab cov cheeb tsam uas xav tau kev saib xyuas lossis kev tiv thaiv, tab sis kuj xav txog qhov ntom ntom ntawm cov cuab yeej tsim kom ua tiav qhov ntom ntom.

5. Cov khoom uas yuav tsum tau hloov ntau zaus tuaj yeem hloov tau yooj yim? Puas yog nws yooj yim rau cov plug-in board tso rau hauv cov khoom siv? Nws yog ib qho tsim nyog los xyuas kom meej qhov yooj yim thiab kev ntseeg tau ntawm kev hloov, kev sib txuas thiab ntxig cov khoom hloov pauv nquag.