Zhejiang NeoDen Technology Co., LTD., yomwe idakhazikitsidwa mu 2010, ndi katswiri wopanga zida zapadera.Makina opangira ma SMT, reflow uvuni,chosindikizira cha stencil, mzere wopanga ma SMT ndi Zogulitsa zina za SMT.Tili ndi gulu lathu la R & D ndi fakitale yathu, kugwiritsa ntchito mwayi wathu olemera odziwa R&D, kupanga ophunzitsidwa bwino, adapambana mbiri yabwino kuchokera kwamakasitomala padziko lonse lapansi.
Muzaka khumi izi, ife paokha anayambaNeoDen4, NeoDen IN6,NeoDen K1830, NeoDen FP2636 ndi zinthu zina za SMT, zomwe zimagulitsidwa bwino padziko lonse lapansi.Pakadali pano, tagulitsa makina opitilira 10,000pcs ndikutumiza kumayiko opitilira 130 padziko lonse lapansi, ndikukhazikitsa mbiri yabwino pamsika.Mu Ecosystem yathu yapadziko lonse lapansi, timagwirizana ndi bwenzi lathu lapamtima kuti tipereke ntchito yotseka kwambiri yotsatsa, ukadaulo wapamwamba komanso chithandizo chaukadaulo chaluso.
Kodi mfundo zisanu ndi imodzi za waya wa PCB ndi ziti?
1. Mphamvu zamagetsi, kukonza pansi
Mawaya onse mu bolodi lonse la PCB amamalizidwa bwino, koma kusokoneza komwe kumachitika chifukwa cha mphamvu zosaganiziridwa bwino ndi mizere yapansi kumasokoneza magwiridwe antchito, ndipo nthawi zina kumakhudzanso kupambana kwa chinthucho.Choncho, mawaya a magetsi ndi pansi ayenera kutengedwa mozama kuti achepetse kusokoneza kwa phokoso lopangidwa ndi magetsi ndi pansi kuti zitsimikizidwe kuti zinthu zili bwino.Kwa aliyense wa mainjiniya omwe amagwira ntchito yopanga zinthu zamagetsi amvetsetse zifukwa za phokoso lomwe limapangidwa pakati pa nthaka ndi mizere yamagetsi.Tsopano kokha kuchepetsa mtundu wa kuponderezana kwa phokoso kuti afotokoze: odziwika bwino ali mu mphamvu zamagetsi, pakati pa mzere wapansi kuphatikizapo decoupling capacitors.Yesetsani kukulitsa magetsi, m'lifupi mwa mzere wapansi, makamaka mokulirapo kuposa chingwe chamagetsi, ubale wawo ndi: mzere wapansi> chingwe chamagetsi> mzere wamakina, nthawi zambiri m'lifupi mwake: 0.2 ~ 0.3mm, ambiri ndi m'lifupi mwake mpaka 0.05 ~ 0.07mm, chingwe chamagetsi cha 1.2 ~ 2.5 mm pagawo la digito la PCB lomwe likupezeka waya wotakataka kuti apange dera, ndiye kuti, kupanga maukonde apansi oti agwiritse ntchito (malo ozungulira a analogi sangagwiritsidwe ntchito motere) ndi dera lalikulu la mkuwa wosanjikiza kwa nthaka, mu kusindikizidwa dera bolodi si ntchito mu malo olumikizidwa pansi monga pansi.Kapena kupanga multilayer bolodi, magetsi, pansi aliyense atenge wosanjikiza.
2. mabwalo a digito ndi ma analogi ozungulira kuti agwiritse ntchito wamba
Masiku ano, ma PCB ambiri salinso gawo logwira ntchito limodzi, koma osakanikirana a digito ndi ma analogi.Choncho, mu mawaya adzafunika kuganizira vuto la kusokonezana pakati pawo, makamaka phokoso kusokoneza pansi.Mabwalo a digito ndi mafupipafupi, maulendo a analogi ndi omveka, chifukwa mizere yamagetsi, mizere yamagetsi yothamanga kwambiri kutali kwambiri ndi zipangizo zamakono za analogi, pansi, PCB yonse kupita kudziko lakunja kokha, kotero PCB iyenera kukhala kukonzedwa mkati mwa digito ndi analogi wamba wamba, ndi bolodi kwenikweni wolekanitsidwa digito ndi analogi nthaka iwo si olumikizidwa kwa wina ndi mzake, kokha mu PCB ndi kunja kugwirizana dziko The mawonekedwe pakati PCB ndi dziko lakunja.Digital ground ndi analogi ground ali ndi kulumikizana kwakanthawi, chonde dziwani kuti pali malo amodzi okha olumikizirana.Palinso palibe wamba pa PCB, amene anatsimikiza ndi dongosolo dongosolo.
3. mizere yolumikizira yomwe imayikidwa pamagetsi (pansi) wosanjikiza
Mu multilayer kusindikizidwa dera bolodi mawaya, chifukwa chizindikiro mzere wosanjikiza si anamaliza nsalu mzere anasiya alibe kwambiri, ndiyeno kuwonjezera zigawo zambiri zidzachititsa zinyalala Komanso kuwonjezera kuchuluka kwa ntchito kupanga, mtengo chawonjezeka moyenerera, pofuna kuthetsa kutsutsana kumeneku, mukhoza kuganizira mawaya pamagetsi (pansi) wosanjikiza.Kuganizira koyamba kuyenera kukhala kugwiritsa ntchito mphamvu yosanjikiza, ndikutsatiridwa ndi nthaka.Chifukwa ndi bwino kusunga umphumphu wa wosanjikiza pansi.
4. Kugwira miyendo yolumikizira muzitsulo zazikuluzikulu
M'dera lalikulu (magetsi), omwe amagwiritsidwa ntchito kwambiri pazigawo za mwendo ndi kugwirizana kwake, kukonzanso mwendo wa kugwirizana kumafuna kulingalira kwakukulu, ponena za ntchito yamagetsi, pad ya gawo la mwendo ndi mkuwa wathunthu kugwirizana bwino, koma kuwotcherera kwa zigawozo pali misampha yosafunika monga: ① kuwotcherera kumafuna ma heaters amphamvu kwambiri.② zosavuta kuyambitsa mfundo zabodza.Choncho ganizirani ntchito magetsi ndi ndondomeko zofunika, opangidwa ndi ziyangoyango maluwa, otchedwa matenthedwe kudzipatula ambiri otchedwa otentha ziyangoyango, kotero kuti kuthekera kwa mfundo zabodza solder chifukwa kwambiri kutentha dispation mu mtanda chigawo pa kuwotcherera kwambiri yafupika.Mipikisano wosanjikiza bolodi wa grounding (pansi) wosanjikiza mwendo wa mankhwala omwewo.
5. Udindo wa machitidwe a maukonde pa wiring
M'machitidwe ambiri a CAD, kuyatsa kumachokera pa chisankho cha dongosolo la intaneti.Gululi ndi wandiweyani kwambiri, njirayo ikuwonjezeka, koma sitepeyo ndi yochepa kwambiri, ndipo kuchuluka kwa deta mu gawo lachiwerengero ndi chachikulu kwambiri, chomwe mosakayikira chimakhala ndi zofunikira zapamwamba pa malo osungirako zipangizo, komanso zimakhudza kwambiri. pa liwiro la kompyuta la zinthu zamagetsi zamtundu wa makompyuta.Ndipo ena mwa njira ndi chosayenera, monga PAD wotanganidwa ndi chigawo mwendo kapena unsembe dzenje, anakonza mabowo awo wotanganidwa ndi.Gululi ndi lochepa kwambiri, mwayi wopeza nsalu ndi wochepa kwambiri chifukwa cha kukhudzidwa kwakukulu.Chifukwa chake payenera kukhala dongosolo loyenera la grid kuti lithandizire njira yolumikizira waya.Mtunda pakati pa miyendo iwiri ya zigawo zokhazikika ndi 0.1 inchi (2.54 mm), kotero maziko a gululi nthawi zambiri amakhala 0.1 inch (2.54 mm) kapena kuchulukitsa kokwanira kosakwana 0.1 inchi, monga: 0.05 inchi. , 0.025 inchi, 0.02 inchi, etc.
6. Kuwona Malamulo Kapangidwe (DRC)
Pambuyo pomaliza kupanga mawaya, ndikofunikira kuyang'ana mosamala ngati mawonekedwe a waya akugwirizana ndi malamulo okhazikitsidwa ndi wopanga, komanso kutsimikizira ngati malamulo omwe amakhazikitsidwa amakwaniritsa zofunikira pakupanga gulu losindikizidwa, nthawi zambiri kuyang'ana zotsatirazi: mzere ndi mzere, mzere ndi chigawo pedi, mzere ndi kudzera-dzenje, chigawo PAD ndi kudzera-dzenje, kaya mtunda pakati pa dzenje ndi dzenje ndi wololera ndipo ngati zikukwaniritsa zofunika kupanga.Kodi m'lifupi mwa mphamvu ndi mizere yapansi ndi yoyenera, ndipo kodi pali kulumikizana kolimba (kutsika kwamphamvu) pakati pa mphamvu ndi mizere yapansi?Kodi pali malo mu PCB komwe mzere wapansi ungakulitsidwe.Ndi njira zabwino kwambiri zomwe zimatengedwa pamizere yovuta kwambiri, monga kutalika kwachidule kwambiri, kuwonjezera mizere yoteteza, mizere yolowera ndi yotuluka imasiyanitsidwa bwino.Kaya magawo a analogi ndi digito ali ndi mizere yawoyawo.Kaya zithunzi (monga zithunzi, zolemba) zowonjezeredwa pambuyo pake pa PCB zitha kuyambitsa zazifupi.Kusintha kwa mizere ina yosafunikira.Kodi pali njira yowonjezeredwa ku PCB?Kodi kukana kwa solder kumakwaniritsa zofunikira pakupanga, kukula kwa solder kukana koyenera, ndi zilembo zamakhalidwe zomwe zimapanikizidwa pazida zamakina kuti zisakhudze mtundu wa kukhazikitsa magetsi.Ndi kunja chimango m'mphepete mwa mphamvu pansi wosanjikiza mu multilayer bolodi yafupika, monga mphamvu pansi wosanjikiza wa zojambulazo mkuwa poyera kunja kwa bolodi sachedwa dera lalifupi.Mwachidule Cholinga cha chikalatachi ndi kufotokoza kugwiritsa ntchito PADS yosindikizidwa dera bolodi kamangidwe mapulogalamu PowerPCB kwa kusindikizidwa dera bolodi kamangidwe ndondomeko ndi mfundo zina kwa gulu la okonza kupereka specifications luso atsogolere kulankhulana pakati okonza ndi fufuzani onse.
Nthawi yotumiza: Jun-16-2022