Paunenge uchigadzira akawanda akadhindwa edunhu mabhodhi (PCBs), kusarudza iyo yakakodzera stacking nzira yakakosha. Zvichienderana nezvinodiwa nedhizaini, nzira dzakasiyana dzekuturika, senge enclave stacking uye symmetric stacking, ine zvakasarudzika zvakanakira.Mune ino blog positi, isu tichaongorora nzira yekusarudza iyo chaiyo stacking nzira, tichifunga nezvezvinhu zvakaita sechiratidzo chekuvimbika, kugovera simba, uye nyore kugadzira.
Nzwisisa multi-layer PCB stacking nzira
Multilayer PCBs ine akawanda akaturikidzana ezvinhu conductive akapatsanurwa ne insulating layer. Huwandu hwezvikamu muPCB zvinoenderana nekuoma kwekugadzira uye zvinodiwa zvedunhu. Iyo stacking nzira inotarisisa kuti zvidimbu zvakarongwa sei uye zvakabatana. Ngatitarisei zvakanyanya kune akasiyana stacking matekiniki anowanzoshandiswa mumazhinji-layer PCB magadzirirwo.
1. Enclave stacking
Enclave stacking, inozivikanwawo sematrix stacking, inzira inowanzo shandiswa mune akawanda-layer PCB dhizaini. Kurongeka uku kunosanganisira kuunganidza akaturikidzana kuti aite nzvimbo yakabatana mukati mePCB. Enclave stacking inoderedza crosstalk pakati pemapoka akasiyana-siyana, zvichikonzera kutendeseka kuri nani kwechiratidzo. Iyo zvakare inorerutsa simba rekugovera network (PDN) dhizaini nekuti simba uye ndege dzepasi dzinogona kubatana nyore.
Nekudaro, enclave stacking zvakare inounza matambudziko, sekuoma kwenzira dzekutevera pakati peakasiyana enclaves. Kunyatsotariswa kunofanirwa kutorwa kuti ive nechokwadi chekuti nzira dzechiratidzo hadzikanganiswe nemiganhu yeakasiyana enclaves. Pamusoro pezvo, enclave stacking ingangoda maitiro akaomarara ekugadzira, ayo anowedzera mutengo wekugadzira.
2. Symmetric stacking
Symmetric stacking ndiyo imwe nzira yakajairika mumultilayer PCB dhizaini. Inosanganisira kurongeka kwakaenzanirana kwezvikamu zvakatenderedza ndege yepakati, kazhinji ine simba uye ndege dzepasi. Urongwa uhwu hunovimbisa kugovaniswa kwechiratidzo uye simba muPCB yese, kuderedza kukanganiswa kwechiratidzo nekuvandudza kutendeseka kwechiratidzo.
Symmetrical stacking inopa zvakanakira sekureruka kwekugadzira uye nani kupisa kupisa. Inogona kurerutsa PCB yekugadzira maitiro uye kuderedza kuitika kwekushushikana kwekupisa, kunyanya mumashandisirwo emagetsi epamusoro. Nekudaro, symmetric stacking inogona kunge isingakodzere madhizaini ane chaiwo impedance zvinodiwa kana chikamu chekuisa chinoda asymmetric dhizaini.
Sarudza nzira yakarurama stacking
Kusarudza yakafanira stacking nzira kunoenderana akasiyana dhizaini zvinodiwa uye kutengeserana-offs. Hezvino zvimwe zvinhu zvekufunga nezvazvo:
1. Chiratidzo cheperero
Kana kutendeseka kwechiratidzo chiri chinhu chakakosha mukugadzira kwako, enclave stacking inogona kunge iri sarudzo iri nani. Nekuparadzanisa mapoka akasiyana ezvikamu, zvinoderedza mukana wekupindira uye crosstalk. Kune rimwe divi, kana dhizaini yako ichida kugovaniswa kwakaringana kwezviratidzo, symmetrical stacking inovimbisa kutendeseka kwechiratidzo.
2. Kugovera simba
Funga nezvezvinodiwa zvekugovera simba zvekugadzira kwako. Enclave stacking inorerutsa magetsi ekugovera magetsi nekuti simba nendege dzepasi dzinogona kubatanidzwa zviri nyore. Symmetric stacking, kune rumwe rutivi, inopa yakaenzana magetsi kugovera, kuderedza madonhwe emagetsi uye kuderedza nyaya dzine chekuita nemagetsi.
3. Manufacturing precautions
Ongorora matambudziko ekugadzira anoenderana neakasiyana stacking nzira. Enclave stacking ingangoda mamwe maitirwo akaomarara ekugadzira nekuda kwekudiwa kwekufambisa cabling pakati pe enclaves. Symmetrical stacking yakanyanya kuenzana uye iri nyore kugadzira, iyo inogona kurerutsa maitiro ekugadzira uye kuderedza mutengo wekugadzira.
4. Zvipingamupinyi zvekugadzira zvakananga
Mamwe madhizaini anogona kunge aine zvipingamupinyi zvinoita kuti imwe stacking nzira ifadze kune imwe. Semuenzaniso, kana dhizaini yako ichida chaiyo impedance control kana asymmetric component placement, enclave stacking inogona kunyatsokodzera.
pfungwa dzekupedzisira
Kusarudza yakafanira akawanda-layer PCB stack-up nzira idanho rakakosha mukugadzira maitiro. Paunenge uchifunga pakati pe enclave stacking uye symmetric stacking, funga zvinhu zvakaita sechiratidzo chekuvimbika, kugovera magetsi, uye nyore kugadzira. Nekunzwisisa kusimba uye zvipimo zveimwe neimwe nzira, unogona kukwirisa dhizaini yako kuti isangane nezvinodiwa zvayo nemazvo.
Nguva yekutumira: Sep-26-2023
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