Ma prototyping a PCB pamapulogalamu apamwamba kwambiri

Kugwiritsa ntchito pafupipafupi kumafunikira kusamalitsa mwatsatanetsatane komanso njira zopangira zolondola. Zikafika pa PCB prototyping ya mapulogalamu otere, zofunikira zenizeni ziyenera kukwaniritsidwa kuti zitsimikizire kuti magwiridwe antchito ndi odalirika. Capel ali ndi zaka 15 akugwira ntchito za board board ndipo wapanga ukatswiri wambiri pa PCB prototyping yogwiritsa ntchito pafupipafupi. Gulu lathu la akatswiri aukadaulo a R&D ladzipereka kupereka mwachangu komanso zodalirika za PCB kupanga kwamakasitomala omwe ali pamakampani ogwiritsira ntchito pafupipafupi. Kuchokera pakugula mpaka kupanga ndi kuyesa, timapereka njira zodalirika zokhazikika.

Tisanafufuze zofunikira zenizeni za PCB prototyping pamapulogalamu othamanga kwambiri, tiyeni timvetsetse kaye tanthauzo la prototyping yolondola komanso yabwino pankhaniyi.Kugwiritsa ntchito pafupipafupi kumaphatikizapo mafakitale osiyanasiyana monga ma telecommunication, mlengalenga, zida zamankhwala, ndi makina opanda zingwe. M'mafakitale awa, kufala kwa ma frequency apamwamba komanso kulandila ndikofunikira.

Ma prototyping a PCB pamapulogalamu apamwamba kwambiri amafunikira kuganizira mozama zinthu zingapo zofunika kuti zitsimikizire kukhulupirika kwa ma siginecha, kutayika pang'ono, ndi kusokoneza kochepa. Tiyeni tiwone zina mwazofunikira mwatsatanetsatane:

1. Kusankha zinthu: Kusankha zinthu zoyenera za PCB ndikofunikira pamapulogalamu apamwamba kwambiri.Dielectric constant (Dk), dissipation factor (Df) ndi matenthedwe matenthedwe ndi zinthu zofunika kuziganizira. Zida monga PTFE kapena PTFE laminates ndi zabwino kwambiri magetsi katundu ndi otsika chizindikiro kutayika pa ma frequency apamwamba.

2. Mapangidwe a stackup: Kukonzekera koyenera kwa stackup n'kofunika kwambiri kuti mukwaniritse zoletsa zoyendetsedwa.Kusunga makulidwe osasinthika a dielectric ndi makulidwe achitsulo amkuwa ndikofunikira kuti awonetse kukhulupirika. Impedans yoyendetsedwa imathandizira kuchepetsa kuwunikira ndi kutayika kwa ma siginecha, ndikuwonetsetsa kufalitsa kodalirika kwa data.

3. Kusokoneza kolamuliridwa: Kufananiza kwa Impedance n'kofunika kwambiri kwa zizindikiro za digito zothamanga kwambiri ndi maulendo a RF.Zizindikiro zokhala ndi zopinga zosiyanasiyana zimatha kuyambitsa kuwunikira kwa ma siginecha, kuchepetsedwa kwa ma siginecha, ndikuwonongeka kwathunthu kwa magwiridwe antchito. Pakugwiritsa ntchito pafupipafupi, kuwongolera koyenera kwa PCB yonse ndikofunikira.

4. Zosanjikiza zapansi ndi mphamvu: Njira zoyatsira zogwira mtima zimagwira ntchito yofunika kwambiri pamapangidwe apamwamba kwambiri.Ndege yodzipatulira yosasunthika imapereka njira yobwererera yochepetsera kuyenda kwapano, kuchepetsa kusokoneza kwa ma sign ndi crosstalk. Kugawa koyenera kwa ndege kumathandizira kupereka mphamvu zoyera, zokhazikika pagulu lonselo.

5. Kuteteza kwa RF: Pofuna kupewa kusokoneza kwa electromagnetic (EMI) ndi kusokoneza ma radio frequency (RFI), ndikofunikira kugwiritsa ntchito luso loyenera la RF shielding.Kutchinga kwa mkuwa, zitini zotchinjiriza za RF, ndi kuyika kwadongosolo kwa zida zitha kuchepetsa kwambiri kusokoneza kwakunja ndikuwongolera mawonekedwe azizindikiro.

6. Kuyika kwa zigawo ndi njira: Kuyika kwa zigawo ndi njira ziyenera kuganiziridwa mosamala kuti muchepetse kutalika kwa kutsogolera ndi kusokoneza kwa chizindikiro.Kutsata kwakufupi kumachepetsa nthawi yofalitsa ma siginecha, potero kumachepetsa mwayi wowonongeka kwa ma siginecha. Kusiyanitsa koyenera kwa nthaka ndi kudzipatula kwaphokoso ndizofunikiranso.

7. Kuwoloka kwa ma Signal: Pakugwiritsa ntchito pafupipafupi kwambiri, kuwoloka kwa ma siginecha kuyenera kupewedwa kapena kukonzekera mosamala kuti muchepetse vuto lililonse pa kukhulupirika kwa chizindikiro.Njira zoyenera zolekanitsirana komanso kudzipatula zimathandizira kuchepetsa kupotoza kwa ma sign ndi kuphatikizika.

8. Kuyesa ndi Kutsimikizira: Njira zoyesera ndi zovomerezeka ndizofunikira kwambiri kuti zitsimikizire kudalirika ndi ntchito za ma prototypes apamwamba a PCB.Njira zoyesera zapamwamba, monga time domain reflectometry (TDR), zitha kuthandiza kuwunika momwe magwiridwe antchito amagwirira ntchito ndikuzindikira zovuta zilizonse zokhudzana ndi kukhulupirika.

Ku Capel, timamvetsetsa kufunikira kwa zofunikira izi za PCB prototyping pamapulogalamu apamwamba kwambiri. Pokhala ndi zaka 15 zachidziwitso komanso gulu laukadaulo la R&D, tadziwa luso lopanga ma PCB odalirika komanso ogwira mtima. Mayankho athu odalirika amodzi amaphatikizapo kugula, kupanga ndi kuyesa, kutsimikizira kukhutira kwamakasitomala.

Powombetsa mkota, Kujambula kwa PCB pamapulogalamu apamwamba kwambiri kumafuna chidwi chatsatanetsatane ndikutsata zofunikira zenizeni.Zipangizo, ma stackup, control impedance, njira zoyambira pansi, kutchingira kwa RF, masanjidwe a zigawo ndi njira zoyesera zonse zimagwira ntchito yofunika kwambiri pakuwonetsetsa kuti magwiridwe antchito akuyenda bwino.Ukadaulo wa Capel pakupanga mawonekedwe a PCB pamapulogalamu apamwamba kwambiri umatipangitsa kukhala ogwirizana nawo makampani omwe ali ndimakampani opanga ma frequency apamwamba. Tikhulupirireni kuti tidzapereka ma prototypes a PCB achangu, odalirika omwe amakwaniritsa zomwe mukufuna ndikupitilira zomwe mukuyembekezera.