Panui Circuie Poari (PCB) is short for Printed circuit Board. Usually in insulation material, according to the predetermined design, made of printed circuit, printed components or a combination of both conductive graphics called printed circuit. He tata tonu nga taputapu hiko e kitea ana e taatau kaore e taea te mahi kaore he iti, iti ki nga mataaratanga hiko, taatai, rorohiko rorohiko, ki nga rorohiko, taputapu hiko whakawhitiwhiti, punaha patu hoia, me te mea kei kona ano nga ara hiko me etahi atu waahanga hiko. hononga hiko i waenga i a raatau me whakamahi PCB.

Ko te kauwhata arataki o te hononga hiko i waenga i nga waahanga e waatea ana i runga i te waahanga kiriuhi ka kiia ko te ara iahiko. Ma tenei, ko te ara iahiko taarua raina taarua ranei o te papa kua oti te kiia ko te peehi araahiko kua taarua, e mohiotia ana ko te papa taarua he papaahiko taarua ranei. Ka whakawhiwhia ki te miihini tautoko mo te kohinga huinga o nga momo waahanga hiko penei i te hikoi whakauru, te mohio ki te hononga waea me te hononga hiko hiko hiko ranei i waenga i nga waahanga hiko penei i nga waahanga hiko whakauru, me te whakarato i nga waahanga hiko e hiahiatia ana, penei i te aukati ahurei, me era atu. I te wa ano ki te whakarato kauwhata aukati aukati aunoa; Whakaratohia nga taatai ​​tautuhi me nga whakairoiro mo te whakauru waahanga, tirotiro me te tiaki.

Me pehea te hanga PCBS? When we open the thumb drive of a general-purpose computer, we can see a soft film (flexible insulating substrate) printed with silver-white (silver paste) conductive graphics and potential graphics. Na te tikanga taarua mata o te ao hei tiki i tenei kauwhata, na reira ka kiia e maatau tenei papa huringa taarua hiriwa kowiri tira poari ara iahiko. He rereke i nga papahiko, i nga kaari whakairoiro, i nga kaari whatunga, i nga pouwhanga, i nga kaari oro me i nga papa hiko i runga i nga taputapu kaainga ka kitea i te Taone Rorohiko. Ko nga mea e whakamahia ana hei hanga pepa (he maha nga wa ka whakamahia mo te taha kotahi) he karaihe karaihe ranei (he maha nga waa e whakamahia ana mo te taha-takirua me te papanga maha), he pou-epoxy-epoxy ranei i hangaia i mua, he taha e rua ranei o te mata kua kapi ki te pukapuka parahi, katahi ka whakaorangia te rongoa. Ko tenei momo poari taiawhio e kapi ana i te papa pukapuka parahi, e kiia ana he papa maro. Na ka hanga e maatau he papaahiko taapiri, ka kiia ko te papa huringa taarua uaua. Ko te papa iahiko taarua me nga whakairoiro araahiko kua taatatia ki tetahi taha ka kiia ko te poari taiawhio taarua taha, me te poari taiawhio taarua me nga whakairoiro araina i runga i nga taha e rua, ka honoa ki nga taha e rua na roto i te whakarewanga o nga kohao, ka kiia ana he takirua -panel. Ki te whakamahi i te ararewa rua, e rua te ara kotahi mo te paparanga o waho e rua ranei nga arai rua, e rua nga poraka o te papa o waho o te papa ara iahiko taarua, na roto i te punaha whakanoho me nga rauemi whakapiripiri whakarereke rerekee me te honohono whakairoiro aronga e ai ki te hiahia hoahoa o te ara iahiko. poari riro wha, ono paparanga pearua ara iahiko, mohiotia hoki rite multilayer poari ara iahiko tāngia. There are now more than 100 layers of practical printed circuit boards.

Ko te mahinga whakaputa PCB he uaua, e uru ana ki te maha atu o nga momo whakahaere, mai i te tukatuka miihini ngawari tae atu ki te tukatuka miihini uaua, tae atu ki nga tauhohenga matū noa, te whakaahua whakaahua, te hiko hiko, te miihini hiko me etahi atu mahinga, hoahoa awhina rorohiko (CAM) me etahi atu mohiotanga . I nga wa e raru ana te mahi whakaputa raru ka tutuki i nga raru hou kaore ano kia kitea he raru kua ngaro, na te mea ko te mahinga whakaputa he momo raina tonu, na te he o te hononga i puta ai te mahi puta noa i te papa. nga hua ka puta mai i te maha o nga otaota, poari taiawhio taarua mena kaore he miihini hangarua, Ka taea e nga kaiwhakangungu tukatuka te awangawanga, na te maha o nga kaiwhakangungu e wehe i te umanga ki te mahi i nga mahi hokohoko me nga ratonga hangarau mo nga taputapu PCB, ki nga kamupene rauemi ranei.

Kia maarama tonu ai te PCB, me maarama ki te mahinga whakaputa i te taha kotahi, i te taha o te poari ara iahiko taarua me te papa multilayer noa, kia hohonu ake te maarama o taua mea.

Poari taarua takitahi-taha: – he koti parahi kotahi – he paraihe ki te paraoa, maroke), he keri he wereweti ranei -> he raina taarua te tauira whakairo hei whakamahi ranei i te whakahee i te kiriata maroke ki te whakaora i te pereki whakatika, te karauna he parahi me te maroke hei aukati i nga mea taarua, ki te horoi, ki te maroke, ki te aukati i te mata. whakairoiro whakairo (te hinu matomato e whakamahia ana i tenei wa), te whakaora UV ki te tohu i te mata whakairoiro whakairoiro, te whakaora UV, te whakamahana, te pupuhi, me te ahua – hiko me te whakamatautau i te ara iahiko poto – te paraoa, te whakamaroke. → miihini whakakikorua o mua-waikura (maroke) he tine-riringi raumati rangi wera → takai tirotiro → wheketere hua kua oti.

Poari taarua-taarua taarua taarua: – papa-parahi-papa papa-whakakakahu – paninga – nc drill poka aratohu – tirotirohia, pahekeheke ana te whakakikorua – whakakikorua matū (whakarewaina poka aratohu) – whakakikorua parahi angiangi (poari katoa) (kiriata maroke / kiriata maana, whakaaturanga me te whanaketanga) – te tirotiro me te whakatika i te pereti – raina whakairoiro whakakikorua me te tine electroplating (te aukati i te waikura o te nickel / koura) -> ki te taarua rauemi (paninga) ) to scrub clean, commonly used graphics screen printing resistance welding heat curing green oil (photosensitive dry film or wet film, exposure, development and heat curing, often heat curing photosensitive green oil) and dry cleaning, to screen printing mark character graphics, curing, (tin or organic shielded welding film) to form processing, cleaning, drying to electrical on-off testing, packaging and finished products.

Na roto i te tikanga metallization poka o te hanga i tetahi rerenga tukanga maha ki roto i te parahi o te parahi kakano tapahi taha-rua, kaitao ki te keri kia tuu te kohao, kia piri ki te paninga maroke paninga ranei hei aukati i te whakaaturanga, te whanaketanga me te taatai ​​me te kiriata – te tirotiro o roto – (te raina o waho o te raima kotahi te raima whakakakahu, he pepa hono, he pepa perehana B – he tirotiro tono, he kohao whakairinga) hei whakainu, he maha nga waahanga keri -> He poka me te tirotiro i mua o te maimoatanga me te whakakikorua o te parahi – he papa tonu me te tirotiro parahi parahi angiangi – piri ki te aukati ki te whakakikorua kiriata maroke paninga ranei ki te kaihoko whakakikorua kia whakakakahu i te papa o raro, te whanake me te whakatika i te pereti te whakakikorua me te hiko i te koranu mata ki te kiriata me te taatai Te horoi horoi → te horoi, te whakamaroke → te kitenga hononga hiko → te kitenga hua oti → te wheketere wheketere.

It can be seen from the process flow chart that the multilayer process is developed from the two-face metallization process. Hei taapiri ki nga waahanga e rua-taha, he maha nga waahanga motuhake: ko te hononga whakaroto o te kohao whakaroto, te keri me te whakakorenga epoxy, te punaha whakanoho, te whakamaarai, me nga taonga motuhake.

Ko ta maatau kaari papa rorohiko noa ko te epoxy karaihe kakahu rua-taha te poari ara iahiko taarua, kotahi te taha e whakauruhia ana nga waahanga, ko tetahi taha ko te waahanga o te huringa waewae o te waewae, ka kite he tino auau nga hononga honohono, te waahanga o te waewae te papa o enei hononga whakarewa ka kiia ko te papa. Why don’t the other copper wires have tin on them? Because in addition to the solder plate and other parts of the need for soldering, the rest of the surface has a layer of wave resistance welding film. Ko tana kiriata whakarewa he kaakaariki te nuinga, me etahi e kowhai ana, e mangu ana, e kikorangi ana, aha atu, no reira ka kiia te hinu whakahinuhinu he hinu kaakaariki i roto i te umanga PCB. Ko tana mahi ki te aukati i te ngaru ngaru araa o te piriti, te whakapai ake i te kounga maitai me te penapena totoka, aha atu. It is also a permanent protective layer of printed board, can play the role of moisture, corrosion, mildew and mechanical abrasion. Mai i waho, he maeneene te papa, he kanapa te aukati i te kiriata, e ngawari ana ki te pereti kiriata me te rongoa i te hinu matomato. Ehara ko te ahua anake he pai ake, he mea nui kia nui te tika o te papa, kia pai ake ai te pono o te hononga honohono.

Kei te kite taatau mai i te papa rorohiko, e toru nga waahanga kua whakauruhia nga waahanga. A plug-in installation process for transmission in which an electronic component is inserted into a through-hole on a printed circuit board. It is easy to see that the double-sided printed circuit board through holes are as follows: one is a simple component insert hole; Ko te tuarua ko te whakaurunga wahanga me te honohono taha-rua na te poka; Ko te tuatoru he taha-rua ngawari ma te poka; E wha ko te taunga pereti turanga me te kohao whakanoho. Ko etahi atu tikanga whakaraerae e rua ko te whakaeke i te mata me te eke tika i te kongakonga. Inaa hoki, ka taea te whakaaro he hangarau hangarau whakapiri tika hei peka o te hangarau whakapuru mata, ko te maramara ka piri ki te papa taarua, ka hono atu ki te poari taarua na te tikanga uira waea raanei te uta utanga ranei, te tikanga pore, te raahi kurupae tikanga me etahi atu hangarau takai. Ko te mata maitai i runga i te mata o te waahanga.

Ko nga hangarau e whai ake nei te whakaniko i te mata:

1) Na te poari taarua te nuinga o te whakakore i te rahi na roto i te poka, te hangarau hononga poka ranei kua tanumia, ka whakapai ake i te taura waea i runga i te papa taarua, ka whakaitihia te rohe poari taarua (te tikanga ko te hautoru o te whakauru-whakauru), ka taea hoki te whakaiti i te nama o nga papa hoahoa me nga utu mo te papa taarua.

2) Te whakaheke i te taumaha, te whakapai ake i te mahi raupaparorohiko, te whakamahinga o te colloidal solder me te hangarau hou maitai, te whakapai ake i te kounga hua me te pono.

3) Due to the increase of wiring density and the shortening of lead length, the parasitic capacitance and parasitic inductance are reduced, which is more conducive to improving the electrical parameters of the printed board.

4) He maama ake ki te mohio ki te mahi aunoa i te whakauru-whakauru, te whakapai ake i te tere whakauru me te hua o te mahi, me te whakaiti i te utu o te hui kia rite.

As can be seen from the above surface safety technology, the improvement of circuit board technology is improved with the improvement of chip packaging technology and surface mounting technology. Ko te poari rorohiko e maarama ana taatau inaianei kei te whakanoho e ia tana mata ki te piki haere. Inaa hoki, ko tenei momo poari taiawhio whakamahi ano i te whakairo i nga raina taarua raina kaore e taea te whakatutuki i nga whakaritenga hangarau. Na, ko te poari ara iahiko tino nui, ko nga whakairoiro raina me nga whakairoiro whakairoiro he ara hikoi tino haehae me te mahinga whakaputa hinu hinu kakariki.

He nui tonu nga mohiotanga hangarau mo nga papa hiko iahiko taarua, me te whanake haere o te kiato nui, ka nui haere nga hangarau hou. Anei he whakauru ngawari noa, ko te tumanako ka taea e koe te awhina i nga hoa e hiahia ana ki te hangarau PCB.