PCB counter-copy board countermeasures

PCB kukopa bhodhi tekinoroji yekumisikidza maitiro mumashoko akareruka, ndeyekutanga kuongorora kukopa bhodhi redunhu mabhodhi, kurekodha zvinyorwa zvezvikamu, uye zvikamu zvakabviswa kugadzira zvinyorwa zvinyorwa (BOM) uye kuronga kutenga zvinhu, mufananidzo weplate usina chinhu unotariswa mukugadzirisa software. dzokera muPCB kopi bhodhi chimiro faira, uye wozotumira PCB faira kune ndiro kugadzira ndiro, Mushure mekunge bhodhi raitwa, izvo zvakatengwa zvinoriumba zvichasunganidzwa kuPCB bhodhi rakagadzirwa, uyezve kuburikidza nePCB bvunzo uye debugging.

Matanho chaiwo ePCB kukopa bhodhi:

Nhanho yekutanga, tora pcb, pekutanga pane pepa kuti unyore zvese zvinoumbwa nemuenzaniso, parameter, uye chinzvimbo, kunyanya diode, matatu pombi nzira, IC notch mirayiridzo. Zvakanakisisa kutora mifananidzo miviri yechinzvimbo cheiyo ski ine kamera yedhijitari. Ikozvino pcb redunhu bhodhi iri kuwedzera nekuwedzera kumberi pamusoro pe diode triode vamwe havateerere kungoona chete.

Yechipiri nhanho, bvisa ese ma multilayer board ekukopa zvikamu, uye bvisa tini muPAD gomba. Chenesa iyo PCB nedoro uye woiisa mune scanner iyo inoongorora pamapikisheni akati kwirei kuti uwane mufananidzo unopinza. Zvadaro, polisha zvimusoro zvepamusoro nezvapasi zvishoma nepepa remavara emvura kusvikira iyo firimu yemhangura yapenya. Uzviise mukati me scanner, tanga PHOTOSHOP, uye bhuroka mativi maviri zvakasiyana muvara. Ziva kuti pcb inofanira kuiswa yakatambarara uye yakatwasuka mukati me scanner, zvikasadaro mufananidzo wakavhenekwa haugone kushandiswa.

Nhanho yechitatu, gadzirisa musiyano nemumvuri wevasheni, kuitira kuti chikamu chine mhangura firimu uye chikamu chisina mhangura firimu musiyano zvine simba, wobva wadzora subgraph kune nhema nechena, tarisa kana mitsara yacho yakajeka, kana zvisiri, dzokorora danho iri. Kana zviri pachena, chengetedza iyo pikicha seye nhema uye chena BMP fomati mafaira pamusoro.bmp uye bot.bmp. Kana paine dambudziko nemufananidzo, unogona kushandisa PHOTOSHOP kuigadzirisa nekuigadzirisa.

Nhanho yechina ndeye kushandura iwo maBMP mafaera kuita PROTEL mafaera zvichiteerana, uye nekuchinjisa maviri matanda muPROTEL. Semuenzaniso, zvinzvimbo zvePAD neVIA izvo zvakapfuura iwo matanda maviri zvinowirirana, zvichiratidza kuti matanho apfuura akaitwa nemazvo. Kana paine chero kutsauka, dzokorora danho rechitatu. Naizvozvo, pcb board kukopa ibasa rine moyo murefu, nekuti dambudziko diki rinokanganisa mhando uye nedhijitari inoenderana mushure mekuteedzera bhodhi.

Nhanho 5, chinja TOP rukoko BMP kuenda TOP.PCB, ita shuwa yekushandura SILK rara, ndiyo yeyero rukoko, wozoteedzera mutsetse pane TOP rukoko, uye woisa chishandiso zvinoenderana nemufananidzo wedanho rechipiri. Delete iyo SILK dura mushure mekupenda. Dzokorora kusvikira matanda ese atorwa.

Nhanho 6, muPROTEL, fona kumusoro. PCB uye bot. Pcb, uye uvabatanidze kuita imwe nhamba.

Nhanho 7, shandisa laser printer kudhinda iyo TOP LAYER uye BOTTOM LAYER kune yakajeka firimu (1: 1 ratio), isa iyo firimu pane iyo PCB uye enzanisa kana zvisiri izvo, kana zviri izvo, wapedza.

Kopi yebhodhi rekutanga rakagadzirwa, asi raingoitwa hafu chete. Iva nemuedzo kunyangwe, tekinoroji yemagetsi mashandiro ayo anoedza kuteedzera bhodhi yakafanana neyepakutanga bhodhi. Kana zvakaenzana saka zvanyatsoitwa.

taura pfungwa: Kana iri rakasiyana-siyana bhodhi asi zvakare rakanyatso kubwinyiswa mukati mechikamu chemukati, panguva imwechete dzokorora chetatu kusvika kuchishanu danho rekuteedzera nhanho dzemabhodhi, hongu, mifananidzo yezita iri yakasiyana, maererano huwandu hwematanho ekufunga, iyo yakajairika mbiri mapaneru ekuteedzera bhodhi iri nyore kwazvo kupfuura iyo yakawanda-maseru bhodhi, akawanda-masenduru kukopa bhodhi anokanganisa kusarongeka, Saka iyo multilayer board kopi bhodhi kuti inyatso kuve yakangwarira uye nekuchenjerera (iyo yemukati kuburikidza negomba uye kwete kuburikidza negomba iri nyore kumatambudziko).

Double mapaneru ekuteedzera nzira:

1. Snaidza kumusoro nezasi maseketi edunhu bhodhi uye chengetedza maviri mapikicha eBMP.

2. Vhura iyo kopi software QuickPC 2005, tinya “Faira” “Vhura base”, vhura mufananidzo we scan. Kurisa chidzitiro ne PAGEUP, ona padhi, isa padhi zvinoenderana nePP, ona mutsetse zvinoenderana nePT line …… Kungofanana nemwana anodhirowa, dhonza mu software uye tinya “Sevha” kuti ugadzire B2P faira.

3. Dzvanya “Faira” uye “Vhura Base Mepu” kuti uvhure iyo mepu yeparuvara yeimwe dura;

4. Dzvanya “Faira” uye “Vhura” kuvhura iyo yakambochengetwa B2P faira. Tinogona kuona kuti bhodhi richangoteedzerwa rakakwidziridzwa pamufananidzo uyu – bhodhi rimwe chete rePCB rine maburi munzvimbo imwechete, asi kubatana kwedunhu kwakasiyana. Saka isu tinodzvanya “Sarudzo” – “Layer Zvirongwa” kudzima iyo yekuratidzira yepamusoro mutsetse uye silika skrini pano, kuchisiya chete akati wandei matombo emaburi.

5. Gomba riri kumusoro riri panzvimbo imwechete neburi riri pamufananidzo wepasi. Iye zvino tinogona kuronda mutsara pasi sezvataiita muhuduku. Dzvanya “Sevha” zvakare – iyo B2P faira ikozvino ine data kumusoro uye kuzasi mazinga.

6. Dzvanya “faira” “Export to PCB file”, unogona kuwana PCB faira ine zvidimbu zviviri zve data, unogona kushandura bhodhi kana schematic diagram kana kutumira zvakananga kuPCB plate factory kuti ibudise nzira yakawanda yekukopa bhodhi:

Naizvozvo, iwo mana bhodhi kopi bhodhi inodzokororwa kopi mbiri mbiri mapaneru, matanhatu anodzokororwa kuteedzera matatu maviri mapaneru …… Iwo akaturikidzana anotyisa nekuti isu hatisi kuona wiring mukati. Yakaomeswa multilayer bhodhi, tinoona sei iro remukati muchadenga? – akaturikidzana.

Ikozvino kune nzira dzakawanda dzekuisa, pane potion ngura, chishandiso kubvisa, asi zviri nyore kuturikidzana zvakanyanya, kurasikirwa kwedata. Zvakaitika zvinotitaurira kuti sandpaper ndiyo yakanyatsoita.

Patinopedza kuteedzera pamusoro uye wezasi rukoko rwePCB, isu tinowanzo shandisa sandpaper kukuya kubva pamusoro pevhu uye kuratidza iyo yemukati dura. Sandpaper ndiyo yakajairika sandpaper inotengeswa muchitoro chehardware, kazhinji yakaiswa paPCB, uye wobata sandpaper, zvakaenzana kukwizwa paPCB (kana bhodhi iri diki, zvakare rinogona kuiswa pasandpaper, nemumwe munwe wekubata PCB pane sandpaper kukweshera). Iyo poindi ndeye kuitsvedza kuitira kuti inyatsoenzana.

Silk skrini uye mafuta egirini zvinowanzo pukutwa, waya yemhangura uye ganda remhangura rinofanirwa kupukutwa kakawanda. Kazhinji kutaura, bhodhi reBluetooth rinogona kupukutwa mumaminetsi mashoma, ingangoita maminetsi gumi ndangariro; Ehe, nesimba rakakura, zvinotora nguva shoma; Simba ruva rinenge riine imwe nguva.

Mill ndiro ndiro zano rakajairika rinoshandiswa mukugadzirisa zvinhu parizvino, asi zvakare rakanyanya hupfumi. Tinogona kuwana PCB yakaraswa kuti tiedze. Muchokwadi, hazvisi zvakaoma kukuya bhodhi, asi zvinofinha. Zvinoda kushanda nesimba, uye hapana chikonzero chekunetseka nezvekukuya bhodhi kuminwe yako.

PCB diagram effect wongororo

Mukuita kwePCB dhizaini, mushure mekunge hurongwa hwehurongwa hwapera, dhayagiramu yePCB inofanirwa kuongororwa kuti ione kana marongero ehurongwa ane musoro uye kana iyo yakakwana mhedzisiro inogona kuwanikwa. Kazhinji inogona kuongororwa kubva pane zvinotevera zvinhu:

1. Pasinei nokuti hurongwa hwekugadzirisa hunogona kuvimbisa wiring inonzwisisika kana yakakwana, ingave inogona kuvimbisa wiring yakavimbika, kana inogona kuvimbisa kuvimbika kwebasa redunhu. Panguva yekurongeka, iwe unofanirwa kuve nekunzwisisa kwakazara uye kuronga kwechiratidzo chekutungamira uye simba uye pasi network.

2. Pasinei nokuti ukuru hwebhodhi rakadhindwa hunoenderana nehukuru hwekudhirowa kwekugadzirisa, kana inosangana nezvinodiwa zvePCB yekugadzira nzira, uye kana pane zviratidzo zvekuzvibata. Iyi poindi inoda kutariswa kwakakosha, mazhinji PCB wedunhu marongero uye wiring akagadzirwa akanaka kwazvo, anonzwisisika, asi anoregeredza iyo chaiyo yekumisikidza yekumisikidza yekubatanidza, zvichikonzera dhizaini yedunhu haigone kubatanidzwa nemamwe masekete.

3. Hapana kupesana pakati pezvikamu mumativi maviri uye matatu-dimensional nzvimbo. Ngwarira kuhukuru chaihwo hwechigadzirwa, kunyanya kureba kwechigadzirwa. Mune weld-yemahara marongero echikamu, kureba kazhinji hakugone kudarika 3mm.

4. Chimiro chechikamu chakakora uye chakarongeka, chakarongedzwa zvakanaka, angave machira ese. Kana tichiisa kunze zvikamu, isu hatifanire kungofunga kutungamira uye mhando yezviratidzo, uye nzvimbo dzinoda kutariswa kana kuchengetedzwa, asi zvakare funga nezvehuwandu hwehuwandu hwemagadzirirwo emudziyo kuti uwane yunifomu density.

5. Zvikamu zvinoda kutsiviwa kazhinji kazhinji zvinogona kutsiviwa zviri nyore here? Zviri nyore here kuti plug-in board iiswe mumidziyo? Izvo zvinodikanwa kuve nechokwadi chekureruka uye kuvimbika kwekutsiva, kubatanidza uye kuisa zvinogara zvichishandurwa zvikamu.