Nhasi, iyo tsika yekuwedzera compact zvigadzirwa zvemagetsi inoda matatu-mativi dhizaini ye Multilayer pcb. Nekudaro, kurongedza kurongedza kunomutsa nyaya nyowani dzine chekuita neiyi dhizaini maonero. Rimwe rematambudziko kuwana mhando yepamusoro yekuvaka purojekiti.

Kuisira PCBS kuri kuramba kuchikosha sekuwedzera uye kuomarara maseketi akadhindwa achigadzirwa aine akawanda matanda.

Yakanaka pcb lamination dhizaini yakakosha kudzikisa mwaranzi yePCB maseketi uye akabatana maseketi. Pane zvinopesana, kuvaka kwakashata kunogona kuwedzera zvakanyanya radiation, iyo inokuvadza kubva pakuona kwekuchengetedza.

Chii chinonzi PCB stacking?

The PCB lamination layers the insulation and copper of the PCB before the final layout design is completed. Kuvandudza inoshanda stacking inzira yakaoma. A pcb rinobatanidza simba uye anonongedzera pakati panyama namano, uye zvakakodzera akaturikidzana pamusoro bhodhi zvinhu zvakananga kukanganisa basa rayo.

Nei pcb lamination?

Kuvandudza pcb lamination yakakosha pakugadzira mabhodhi anoshanda. Pcb lamination ine mabhenefiti mazhinji nekuti iyo yakawanda-masisitimu dhizaini inovandudza simba rekugovera simba, inodzivirira kupesana nemagetsi emagetsi, inoganhurira kupindirana, uye inotsigira yakakwira-yekumhanya chiratidzo chiratidzo.

Kunyangwe hazvo chinangwa chekututira kuri kuisa maseketi akawanda emagetsi pane rimwe bhodhi kuburikidza nematanho mazhinji, pcb yekumisikidza mamiriro inopawo zvimwe zvakakosha. Aya matanho anosanganisira kudzikisira kushomeka kwebhodhi redunhu kune ruzha rwekunze uye kudzikisira crosstalk nematambudziko emhedheni mumatanho emhando yepamusoro.

Yakanaka pcb lamination inogona zvakare kubatsira kuverengera yakaderera yekupedzisira yekugadzira mitengo. Pcb lamination inogona kuchengetedza nguva nemari nekuwedzera kugona uye kugadzirisa kusangana kwemagetsi muiyo purojekiti.

Mufananidzo chinyorwa: pixabay

Zvinyorwa nemitemo yePBB lamination dhizaini

Iyo yakaturikidzana nhamba yakaderera

Mateki akareruka anogona kusanganisira mana matete ePCBS, nepo mamwe mabhodhi akaomarara achida hunyanzvi hwakateedzana. Kunyangwe zvichinyanya kuomarara, iwo epamusoro matanho anotendera vagadziri nzvimbo yakawanda yekuwaridza pasina kuwedzera njodzi yekusangana nemhinduro dzisingaite.

Kazhinji, masere kana anopfuura mafurati anodikanwa kuti awane yakanakisa nhanho kuiswa uye nzvimbo yekuwedzera mashandiro. Radiation inogona zvakare kudzikiswa nekushandisa iyo yakawanda ndege uye ine simba ndege pane yemazhinji multilayer pani.

Low layer

Urongwa hwemhangura uye kuputira zvidimbu izvo zvinoumba dunhu zvinoumba iyo PCB inopindirana mashandiro. Kuti udzivise pcb kumisidzana, ita muchinjikwa chikamu chebhodhi chienzane uye chakaringana kana uchironga matanda. Semuenzaniso, muzvikamu zvisere, chikamu chechipiri nechinomwe chinofanirwa kunge chakaenzana pakukora kuti uwane chiyero chakaringana.

Iyo dhata yemasaini inofanirwa kugara iri padyo nendege, nepo simba uye ndege zhinji dzakabatanidzwa zvakanyanya. Izvo zvakanakisa kushandisa akawanda ekumisikidza zvidimbu sezvo zvinowanzo deredza radiation uye pasi impedance.

● Rudzi rwemhando yemhando

Iwo anodziya, echimakanika, uye emagetsi zvivakwa zveumwe neumwe substrate uye nemabatiro avanopindirana akakosha pakusarudza PCB lamination zvinhu sarudzo.

Dunhu redunhu rinowanzo kuve rakasimba fiberglass core, iyo inopa ukobvu uye kuomarara kwePCB. Dzimwe PCBS dzinochinjika dzinogona kugadzirwa kubva kuchinjika yakanyanya tembiricha mapurasitiki.

Iyo yepamusoro dura ipepa rakatetepa rakagadzirwa nemhangura foil rakanamatira pabhodhi. Mhangura iripo pamativi ese ePBB yemaviri-mativi, uye ukobvu hwemhangura hunosiyana zvichienderana nenhamba yezvikamu zvePCB.

The top of the copper foil is covered with a blocking layer to make the copper trace in contact with other metals. Ichi chinhu chakakosha kubatsira vashandisi kuti vadzivise kuwaridza svetuka munzvimbo chaiyo.

Chidzitiro chekupurinda rukanda chinoiswa kune iyo solder inodzivisa yakatetepa kuwedzera zviratidzo, manhamba uye mavara kuitira nyore kusangana uye kunzwisisa kuri nani kwebhodhi.

● Sarudza wiring uye kuburikidza nemakomba

Vagadziri vanofanirwa kufamba nemasaini ekumhanyisa pamusoro pezvikamu zvepakati pakati pezvikamu. Izvi zvinobvumira ndege yepasi kuti ipe nhovo ine mwaranzi inobuditswa kubva mumugwagwa nenzira inomhanya kwazvo.

Kuiswa kwenzvimbo yechiratidzo padyo padanho renhandare inobvumira iyo yazvino kudzoka kuyerera pane ndege dziri padyo, nokudaro ichideredza kudzoka kwenzira inductance. Iko hakuna kukwana kwakaringana pakati pesimba riri pedyo nerubatsiro uye hwaro hwevhu hwekupa kudonhedza pazasi pe500 MHz uchishandisa zvakajairika nzira dzekuvaka.

● Kupatsanurana pakati pezvikamu

Sezvo iyo capacitance inoderera, kubatana kwakasimba pakati pechiratidzo uye ikozvino kudzoka ndege kwakakosha. Iko kupihwa simba uye pasi kunofanirawo kunge kwakabatanidzwa.

Zviratidzo zvemasaini zvinofanirwa kugara zviri padhuze nepadhuze kana zviri mundege dziri pedyo. Tight coupling and spacing between layers is critical for uninterrupted signaling and overall functionality.

kugumisa

Pcb lamination tekinoroji Kune akawanda akasiyana akawanda maseru-pcb magadzirirwo. Kana zvidimbu zvakawanda zvakabatanidzwa, nzira yeTATU-DIMENSIONAL iyo inotarisa chimiro chemukati uye maratidziro epasi anofanira kusanganiswa. Iine yakakwira yekumhanyisa kumhanya kwemasekete emazuva ano, chenjedzo pcb yekuisira inofanirwa kuitwa kunatsiridza kugovera kugona uye kudzikamisa kupindirana. PCBS isina kugadzirwa inogona kudzikisira kufambisa chiratidzo, kugadzirwa, kufambisa simba, uye kuvimbika kwenguva refu.