PCB wiring dhizaini, yekuvandudza jira kuburikidza nechiyero cheseti yakakwana yenzira, pano, kukupa PCB dhizaini yekuvandudza chiyero chejira kuburikidza nechiyero chekugadzira dhizaini uye maitiro anoshanda, kwete chete kune vatengi kuchengetedza purojekiti yekuvandudza kutenderera, asiwo kuwedzera kunaka kweiyo yakapera dhizaini.
1. Sarudza nhamba yePCB layers
Circuit board size uye wiring layers dzinoda kutariswa pakutanga kwekugadzira.Kana dhizaini ichida kushandiswa kwepamusoro-density bhora grid array (BGA) zvikamu, zvinofanirwa kufunga nezvehushoma nhamba yewaya maseru anodiwa kune wiring yemidziyo iyi.Nhamba yezvikamu zve wiring uye stack-up nzira inobata zvakananga kune wiring uye impedance yewaya dzakadhindwa.Saizi yebhodhi inobatsira kuona iyo stack-up nzira uye hupamhi hwewaya dzakadhindwa kuti uwane dhizaini yaunoda.
Nguva dzose inofungidzirwa kuti zvishoma zviduku zvebhodhi, zvinoderedza mari, asi pane zvimwe zvakawanda zvinokanganisa mari yekugadzira bhodhi.Mumakore achangopfuura, musiyano wemari pakati pemapuranga akawanda wakaderedzwa zvikuru.Zviri nani kutanga dhizaini neakawanda akaturikidzana uye kuparadzira mhangura zvakaenzana kudzivirira kumanikidzwa kuwedzera mitsara mitsva pedyo nekupera kwekugadzira apo nhamba shoma yezviratidzo inowanikwa isingaenderane nemitemo nenzvimbo. zvinodiwa zvakatsanangurwa.Kunyatsoronga kusati kwagadzirwa kunoderedza wiring mumatambudziko akawanda.
2. Kugadzira mitemo nemiganhu
Mitsetse yakasiyana-siyana yechiratidzo ine zvakasiyana-siyana zvinodiwa zve wiring, kurongedza zvose zvakakosha zvinodiwa zvemutsara wechiratidzo, mapoka akasiyana-siyana ekugadzira haana kufanana.Chikamu chega chega chechiratidzo chinofanirwa kuve nechekutanga, chepamusoro chinokosheswa, chakasimba mitemo.Mitemo inechekuita nehupamhi hwewaya dzakadhindwa, huwandu hwakawanda hwevias, parallelism, kupindirana kwemutsara wechiratidzo, uye kuganhurirwa kwemutsetse, izvo zvine simba rakakura pakuita kwechishandiso checabling.Kunyatsofunga nezvezvinodiwa zvekugadzira inhanho yakakosha mukubudirira wiring.
3. Kurongeka kwezvikamu
Kuti ugone kukwidziridza maitiro egungano, dhizaini yekugadzira (DFM) mitemo inomisa zvirambidzo pachikamu chechikamu.Kana dhipatimendi regungano richibvumira kufamba kwechikamu, dunhu rinogona kuvandudzwa nenzira kwayo, zvichiita kuti zvive nyore kugadzira wiring.Mitemo yakatsanangurwa uye zvipingamupinyi zvinokanganisa magadzirirwo ekugadzirisa.
Nzira dzekufambisa uye kuburikidza nenzvimbo dzinofanirwa kutariswa panguva yekurongeka.Aya makwara uye matunhu ari pachena kune mugadziri, asi otomatiki wiring chishandiso chinongofunga chiratidzo panguva, nekuisa zvipingamupinyi zve wiring uye kuseta dhizaini yechiratidzo mutsara inogona kuva jira, unogona kuita iyo wiring chishandiso chinogona kufanana. mugadziri akafungidzira kuti kupera kwewaya.
4. Fan-out design
Fan kunze muchikamu chekugadzira, kugonesa otomatiki wiring maturusi kuchikamu mapini kuti abatanidze, pamusoro pemidziyo yekumisikidza, pini yega yega inofanira kunge iine gomba rimwe chete, kuitira kuti pakuda kwekuwedzera kubatanidza, bhodhi rinogona kubatanidzwa kune yemukati layer, in-circuit test (ICT) uye dunhu reprocessing.
Kuti tiite kuti iyo otomatiki wiring turusi ishande zvakanyanya, zvakakosha kushandisa yakakura inobvira kuburikidza nehukuru uye yakadhindwa waya, ine spacing yakaiswa pa50 mils iri yakanakira.Shandisa mhando ye vias iyo inowedzera huwandu hwenzira dzekufambisa.Paunenge uchigadzira fan-out, funga in-circuit bvunzo.Magadzirirwo ebvunzo anogona kudhura uye anowanzo kurairwa kana kugadzirwa kuzere kwave pedyo, uye kunonoka kufunga nekuwedzera node kuti uwane 100% testability.
Mushure mekunyatsofungisisa uye kutarisira, dhizaini yedunhu mu-circuit bvunzo inogona kuitwa kutanga mukuita dhizaini uye yakazoonekwa gare gare mukuita kwekugadzira, nerudzi rwe kuburikidza ne fan-out yakatemwa nenzira yewaya uye dunhu mu-circuit bvunzo, ine simba uye pasi zvakare ichifurira iyo wiring uye fan-out dhizaini.Kuti uderedze inductive impedance inogadzirwa nesefa capacitor yekubatanidza mutsara, iyo pamusoro-gomba inofanirwa kunge iri padyo nepaanogona napo pamapini eiyo yepamusoro gomo mudziyo, kana zvichidikanwa, inogona kushandiswa pamaoko nzira, iyo inogona kukanganisa iyo yepakutanga fungidziro yenzira yewaya, uye inogona kutotungamira kwauri kuti ufunge zvakare mashandisiro emhando ipi yeanopfuura-gomba, zvinofanirwa kufunga nezve hukama pakati pe-over-gomba uye pini inductive impedance uye kuseta kukosha kweiyo. pamusoro-gomba tsanangudzo.
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Nguva yekutumira: Aug-22-2023