12-Layer PCB: Kuongorora Circuit Board Dhizaini, Kugadzira, Stackup, uye Zvishandiso

Munzvimbo yemagetsi emazuva ano, maseketi akaomarara ndiwo akajairika, uye kugadzirisa aya madhizaini akaomarara kunoda kushandiswa kwePCB dzakawanda. Imwe mhinduro yakadaro inosiyana-siyana ndeye 12-layer PCB. Mukuongorora kwakazara uku, isu tichapinda munyika yegumi nemaviri-layer PCBs, tichivhara dhizaini yavo, magadzirirwo, akaturikidzana, uye akasiyana maapplication.

Kunzwisisa iyo 12-Layer PCB

A 12-layer PCB chinhu chakakosha mumamiriro epamberi emagetsi maseketi, kunyanya muindasitiri yemotokari. Inoita basa rakakosha mukutanga kubatanidzwa kwakavimbika, zvichiita kuti ive yakakosha mumashandisirwo akaita senge navigation system, transmission control units, electronic ignition assemblies, uye zvimwe zvakasiyana zvikamu zvemotokari.

Chimwe chezvinotsanangura hunhu hwe12-layer PCB kugona kwayo kushingirira mamiriro ezvakatipoteredza uye tembiricha yakakwira. Aya maPCB anowanzo kuvakwa achishandisa polyimide, organic zvinhu zvinozivikanwa nekusarudzika kwekupisa kupisa. Pamusoro pezvo, vamwe vagadziri vanoshandisa goridhe kupedzisa kwepamusoro, vachiwedzera kusimba kwePCB munzvimbo dzakaoma. Masingi ekupisa dzimwe nguva anosanganisirwa kuti afambise kupisa kwakanyatsoita, zvichiwedzera kusimba kwePCB.

Panyaya yekushushikana kwekupisa, PCB ine zvidimbu gumi nezviviri inogona kutsungirira tembiricha inosvika 288 degrees Celsius kusvika masekondi makumi maviri, nekudzora kweimpedance kunowanzo kuve pakati pe +/-10%. Uyezve, kana ichienzaniswa nemamwe maPCB ane zvidimbu zvakawanda senge zvidimbu zvisere uye zvidimbu gumi, maPCB ane zvidimbu gumi nezviviri anobatsira pamutengo wakaderera, zvichiita kuti ave sarudzo inokwezva kune akasiyana mashandisirwo.

Iko Kukosha kwe12-Layer PCB Stackup

Iyo 12-layer PCB stackup chinhu chakakosha chemultilayer yakadhindwa yedunhu bhodhi dhizaini. Inosanganisira zvakati zvinodiwa pakukora kwezvinhu uye kutsvaga hurefu kuti ufambise kurongeka kwezvikamu zvakasiyana pabhodhi rimwe. Iyo stackup gadziriso yakakosha kuti uwane inodiwa yemagetsi kuita uye kushanda.

Zvinhu zviviri zvekutanga zvakakosha mukuvaka kwe12-layer PCB: core thick and prepreg. Zvishandiso zvepakati zvinoshanda seyepakati mutsetse muPCB stackup, zvichipa kuomarara kunodiwa uye zvivakwa zvemagetsi. Prepreg zvinhu, kune rumwe rutivi, zvinosanganisira resin-yakagadziriswa girazi weave uye inoshandiswa kuzadza mapeji pakati pemhangura foil, kunyanya muzvikamu zvekubatanidza uye ekunze layer cores.

Pakugadzira machira ekunze ePCB, mafoil emhangura ane huremu hwakasiyana, kazhinji kacho anenge 0.5 ounces, anoshandiswa. Kazhinji, maPCB ane 12-layer anogadzirwa zvakanaka pamapuranga ane ukobvu hwakajairwa hwe1.6mm. Kune mamwe magadzirirwo akaomarara, mamwe machira (14 kusvika 16 layer) anogona kuiswa mumapuranga aya akakora. Huwandu chaihwo hwemachira hunoenderana nekugona kwemugadziri kugadzira mabhodhi e-high-density interconnect (HDI).

12-Layer PCB Fabrication Process

Kugadzirwa kwe12-layer PCB kunosanganisira akatevedzana akaomesesa maitiro anozoguma nekugadzirwa kweanoshanda akazara multilayer redunhu bhodhi. Aya maitiro anosanganisira matanho akasiyana, rimwe nerimwe richishandira chinangwa chakananga mukuunza PCB kuhupenyu.

1. Kufungidzira: Dhizaini yedhijitari yePCB inoonekwa uye inoendeswa kubhodhi uchishandisa hunyanzvi hunofambiswa nesoftware.
2. Etching: Simbi yakawandisa inobviswa kubva pakadhindwa redunhu bhodhi uchishandisa maindasitiri zvinonyungudutsa, kunatsa mapatani edunhu.
3. Lamination: Iwo gumi nemaviri akaturikidzana ePCB anosunganidzwa pamwechete achishandisa muchina wekutsikirira, zvichikonzera bhodhi rakabatana.
4. Kuchera: Kuburikidza nekuburikidza neburi-gomba kunoitwa kumisikidza hukama pakati pePCB's gumi nemaviri akaturikidzana.
5. Plating: Simbi kupera kunoiswa kune vias uye kuburikidza-maburi, kuve nechokwadi chekubatana kwemagetsi.
6. Solder Mask Application: Iyo inodzivirira yepolymer layer, inozivikanwa sesolder mask, inoiswa kune iyo PCB pamusoro kudzivirira oxidation uye solder mabhiriji pakati pepadhuze padhuze.
7. Silkscreen Printing: Ruzivo uye mamaki zvakadhindwa pamusoro pePCB, zvichibatsira mukuungana nekuzivikanwa.
8. Hunhu Simbiso: Iyo PCB yakapedzwa inoedzwa kwakasimba kuti ione kushanda kwayo uye kuomerera kune zvakatemwa zvekugadzira.

Basa re12-Layer PCB Circuit Board

Iyo 12-layer PCB redunhu bhodhi rinozvisiyanisa pachayo kuburikidza nehukuru hwayo compact kana ichienzaniswa neyayo imwechete kana kaviri-layer vamwe. Kubatana uku kunowanikwa nekuturika gumi nemaviri akaturikidzana pamusoro peumwe neumwe uye nekuabatanidza kuburikidza ne vias. Mhedzisiro yacho ibhodhi rakazara, diki rakadhindwa redunhu, rakanakira maapplication akaita semalaptops, nharembozha, nezvimwe.

Pasinei nehukuru hwayo hwakaderedzwa, 12-layer PCB redunhu bhodhi rakasimba uye rakasimba, nekuda kwekuvaka kwayo 12-layer kuvakwa uye tembiricha yepamusoro yainotsungirira panguva yekugadzira. Iwo laminates anoshandiswa kubatanidza zvidimbu anoita basa rakakosha mukusimudzira kusimba kwayo.

Uyezve, iyo 12-layer PCB yedunhu bhodhi inozvirumbidza yakakwirira yedunhu density ichienzaniswa neamwechete kana maviri-layer mabhodhi. Izvi zvinobvumira kutengeswa kwezvimwe zvikamu mukati menzvimbo shoma, zvakanyanya kuvandudza PCB kushanda zvakanaka. Iyo diki tsoka, yakakwira dunhu density, uye kusimba kunoita gumi nemaviri-layer PCBs akakodzera kukumbira zvikumbiro zvakaita semakomputa makuru, makadhi emifananidzo, cryptocurrency zvicherwa zvemigodhi, quantum computing zvishandiso, uye artificial intelligence system.

Zvishandiso zve12-Layer PCBs

12-layer akadhindwa edunhu mabhodhi anowana maapplication mumaindasitiri akasiyana uye zvigadzirwa, zvinosanganisira:

1. Consumer Electronics
2. Computer Electronics
3. foni
4. Medical mano
5. Aerospace uye Mauto

mhedziso

Pakazara, maPCB ane layer gumi nemaviri anomiririra mhinduro inoshanda zvakasiyana-siyana yekugadzirira magadzirirwo edunhu akaomarara muchimiro chakaoma uye chinogara kwenguva refu. Kunzwisisa kuomarara kwemaPCB ane layer gumi nemaviri, kusanganisira dhizaini yawo, stackup, uye maitiro ekugadzira, kwakakosha pakushandisa kugona kwawo kwakazara mumashandisirwo akasiyana-siyana.

Paunenge uchishanda ne12-layer PCBs, zvakakosha kuti ubatane nevagadziri vane mbiri kuti uve nechokwadi chekuti nzira dzekugadzirisa dzakashandiswa uye dhizaini yekupedzisira inoenderana nezvaunoda chaizvo. Kusarudza mugadziri akakodzera kwakakosha mukuwana kuita kwaunoda uye kuvimbika kweako gumi nemaviri-layer PCBs.

Kune epamusoro-mhando gumi nemaviri-layer PCB uye akavimbika ekugadzira masevhisi, taura nesu nhasi kuti tikurukure zvaunoda purojekiti.

Kana chirongwa ichi chachinja kubva pakutsvagisa kuenda kuRFQ, ongorora rigid-flex stackup review uye thermal metal core PCB kuitira kuti zvinhu, maitiro, uye zvinodiwa pakuongorora zvirambe zvakaenzana.