The HDI pcb dhizaini inogona kuve yakamanikana, asi iyo chaiyo seti yemitemo yekugadzira ichakubatsira iwe kugadzira zvinobudirira.

Yepamberi PCBS inorongedza mamwe mashandiro munzvimbo diki diki, kazhinji vachishandisa tsika ics / soCs, akakwira akaturikidzana, uye zvidiki zvisaririra. Kumisikidza marongero eaya magadzirirwo nenzira kwayo kunoda seti ine simba yekushandisa-inotyairwa dhizaini maturusi ayo anogona kutarisa wiring uye dhizaini inopesana nemitemo yekugadzira painogadzira PCB. Kana iwe uri kushandisa yako yekutanga HDI dhizaini, zvingave zvakaoma kuona kuti ndeipi dhizaini mitemo inoda kumisikidzwa paunotanga yako PCB marongero.

Gadza iyo HDI pcb mamiriro

NeHDI PCBS, pane zvishoma kusiyanisa zvigadzirwa izvi kubva paPCBS yakajairwa kunze kwechinhu uye wiring density. Ndakaona vagadziri vachinongedzera kuti HDI bhodhi chero chinhu chine mamirioni gumi kana mashoma maburi, mamirioni matanhatu kana mashoma wiring, kana 10 mm kana zvishoma pini nzvimbo. Mugadziri wako anokuudza kuti HDI PCBS inoshandisa maburi mapofu angangoita 8 mil kana pasi, uye maburi madiki mapofu akacherwa nemalaser.

In some ways, they are both true, because there is no specific threshold for the composition of an HDI PCB layout. Wese munhu anogona kubvuma kuti kana dhizaini ikasanganisira ma microholes, iri bhodhi yeHDI. Padivi rekugadzira, iwe unofanirwa kuseta imwe dhizaini mitemo usati wabata dhizaini. Iwe unofanirwa kuunganidza hunyanzvi hwekugadzira usati wagadzira dhizaini dhizaini. Paunenge iwe waita izvi, iwe unofanirwa kuseta dhizaini mitemo uye mamwe marongero mashandiro

Cable upamhi uye kuburikidza-mugomba kukura. The width of a trace with its impedance and line width will determine when you enter the HDI system. Kana iyo wiring upamhi ikava diki zvakakwana, iyo-yekumaburi ichave diki zvekuti inofanirwa kugadzirwa sema microholes.

Rukoko shanduko. Iwo-maburi-anodiwa anofanirwa kunyatsogadzirwa zvinoenderana necustomal ratio, iyo zvakare inoenderana neyakaenzana ukobvu hunodiwa. Layer transformations should be defined early so that they can be quickly placed during routing.

Kuchenesa. Matanho anofanirwa kupatsanurwa kubva kune mumwe nemumwe uye kubva kune zvimwe zvinhu (mapadhi, magungano, ndege, nezvimwewo) izvo zvisiri izvo zve netiweki. Chinangwa apa ndechekuona kutevedzera mitemo yeHDI DFM uye kudzivirira crosstalk yakawandisa.

Zvimwe zvinorambidzwa wiring, senge tambo kureba kugadziridza, kureba tambo kureba, uye zvinobvumidzwa impedance kutsauka panguva wiring zvakare zvakakosha, asi zvinoshanda kunze kweiyo HDI bhodhi. The two most important points here are through-hole size and line width. Kuchenesa kunogona kutariswa nenzira dzakasiyana (semuenzaniso, simulation) kana nekutevera yakajairwa mitemo yechigunwe. Ive nekuchenjerera neyekupedzisira, sezvo izvi zvichizotungamira kune mamiriro ezvinhu apo pane yakawandisa yemukati crosstalk kana isina kukwana wiring density.

Lamination uye pendi

Iyo HDI stack inogona kutangira kubva kune mashoma kusvika kune gumi nematanhatu materu kuti igone iyo yaunoda nzira yekuwandisa. Mabhodhi ane yakakwira-pini kuverenga yakanaka-pura BGA inogona kuve nemazana ekubatanidza pa quadrant, saka zvinongedzo zvinofanirwa kumisikidzwa paunenge uchigadzira matura ehurongwa eiyo HDI PCB marongero.

Kana iwe ukatarisa kune iyo layer stack maneja muPCB dhizaini software, iwe ungangotadza kunyatso tsanangudza chaiyo yakatarwa shanduko senge microholes. It doesn’t matter; Iwe uchikwanisa kumisikidza iyo yekuchinja shanduko uye wozoisa iyo yepakati-gomba saizi miganho mumitemo yekugadzira.

Iko kugona kwekudaidza microchannel chinhu chidiki kunobatsira kana iwe uchinge waseta iyo yekumisikidza mitemo uye kugadzira template. Kuti umise dhizaini yekugadzira yewiring kuburikidza nemakomba, unogona kutsanangura dhizaini dhizaini yekushandisa chete kune microholes. Izvi zvinokutendera iwe kumisikidza yakatarwa clearance miganho nehukuru hwepad uye dhayamita yemwena.

Usati watanga kumisikidza dhizaini mitemo, unofanirwa kubvunza kune anogadzira nezve mashandiro ayo. Iwe unobva wafanira kumisikidza iyo wiring upamhi mune dhizaini mutemo kuti uone kuti iyo wiring impedance inodzorwa pane chaunoda kukosha. Mune zvimwe zviitiko, impedance control haina kudikanwa, uye iwe ungangoda kudzikisira iyo wiring upamhi pane iyo HDI bhodhi kuti uchengetedze yakakwira wiring density.

Famba mutsara upamhi

Iwe unogona kuona iyo inodikanwa wiring upamhi munzira dzinoverengeka. Kutanga, kune impedance-inodzorwa nzira, iwe unoda imwe yeanotevera maturusi:

Verenga huwandu hunodiwa hwekutsvaga nepeni nepepa (iyo nzira yakaoma)

Online Calculator (Kurumidza nzira)

Munda solvers akabatanidzwa mune yako dhizaini uye marongero maturusi (nzira yakanyatsoita)

Izvo zvipingaidzo zvemutsetse macalculator eiyo wiring impedance kuverenga, uye zano rakafanana rinoshanda kana uchigadzirisa wiring saizi yeiyo HDI pcb marongero.

Kuti umise upamhi hwemutsara, unogona kuutsanangura sechipingamupinyi mune dhizaini dhizaini, sezvawakaita nehukuru hwepasi-gomba. Kana usiri kunetseka nezve impedance control, unogona kuseta chero hupamhi. Zvikasadaro, iwe unofanirwa kuona iyo impedance curve yePCB lamination uye woisa iyi chaiyo upamhi semutemo wekugadzira.

Kuchenjerera kuenzanisa kunodiwa nekuti waya yehupamhi haifanire kunge yakanyanya kukura saizi yepad. Kana iyo impedance yekudzora mutsetse upamhi hwakanyanya kukura, iyo laminate ukobvu inofanira kuderedzwa, sezvo izvi zvichimanikidza hupamhi hwemutsara kuderedzwa, kana padhi saizi inogona kuwedzerwa. Chero bedzi saizi yeplatifomu ichidarika iwo maratidziro akanyorwa muIPC standard, zvakanaka kubva pakuvimbika nzvimbo yekutarisa.

kubvumidzwa

Mushure mekupedza iwo maviri akakosha mabasa anoratidzwa pamusoro, iwe unofanirwa kuona yakakodzera trace gap. Nehurombo, kupatsanurana pakati pematanho hakufanirwe kutadza kune 3W kana 3H mitemo yechigunwe, sezvo iyi mitemo isiri kushandiswa zvisirizvo kumabhodhi epamberi ane akanyanya-mhanya masaini. Panzvimbo iyoyo, iri zano rakanaka kutevedzera crosstalk pane yakatarwa upamhi hwemutsara uye tarisa kana yakanyanyisa crosstalk inogadzirwa.