Multilayer PCB chapeza kutchuka kwambiri m’mafakitale osiyanasiyana. Lero, ndizosavuta kupeza mitundu ingapo yama PCBS osanjikiza, kuphatikiza PCB ya 4, PCB ya 6, ndi zina zambiri. Ma PCBS osanjikiza sikisi akhala gawo lofunikira pazovala zazing’ono komanso zida zina zoyankhulana ndiutumiki. What makes them popular? Kodi amasiyana motani ndi mitundu ina ya ma PCBS angapo? Cholemba ichi chakonzedwa kuti chikayankhe zonse zomwe mukufuna kudziwa za wopanga ma PCB a 6.

Chiyambi cha 6-wosanjikiza PCB

Monga dzina limatanthawuzira, PCB yosanjikiza isanu ndi umodzi imakhala ndimagawo asanu ndi limodzi azinthu zoyendetsa. Imakhala PCB yosanjikiza 4 yokhala ndi zigawo zina ziwiri zowonetsera pakati pa ndege ziwiri. Katundu wa PCB wosanjikiza 6 ali ndi zigawo zisanu ndi chimodzi zotsatirazi: zigawo ziwiri zamkati, zigawo ziwiri zakunja ndi ndege ziwiri zamkati – imodzi yamphamvu ndi imodzi yokhazikitsira pansi. Kapangidwe kameneka kamawongolera EMI ndikupereka mayendedwe abwino pamayendedwe otsika – komanso othamanga kwambiri. Zigawo ziwiri zapadziko zimathandizira mayendedwe othamanga, pomwe zigawo ziwiri zamkati zamkati zimathandizira mayendedwe othamanga kwambiri.

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Kapangidwe ka PCB ya 6-wosanjikiza ikuwonetsedwa pamwambapa; Komabe, mwina sizingakhale zofunikira pamapulogalamu onse. Gawo lotsatirali likuwunikiranso masanjidwe ena a PCBS 6-layer.

Mfundo zazikulu pakupanga ma PCBS osanjikiza 6 pazosiyanasiyana

Oyikika bwino 6 zigawo za PCB opanga amatha kukuthandizani kuti mugwire bwino ntchito chifukwa zithandizira kupondereza EMI, kugwiritsa ntchito zida zosiyanasiyana za RF komanso kuphatikiza zinthu zingapo zabwino. Zolakwika zilizonse mumapangidwe a lamination zimatha kukhudza magwiridwe antchito a PCB. Koyambira? This is how you stack properly.

L Monga gawo loyamba pakupanga, ndikofunikira kusanthula ndi kuthana ndi kuchuluka kwa ndege, ma magetsi ndi ndege zomwe zingafunikire PCB.

L magawo olimba ndi gawo lofunikira pakudula kulikonse chifukwa kumakutetezani ku PCB yanu. Kuphatikiza apo, amachepetsa kufunika kwa akasinja otetezera akunja.

Nayi mitundu yotsimikizika ya ma CD a PCB osanjikiza amitundu yosiyanasiyana:

L Pazipangizo zokhala ndi zotsalira zazing’ono: Ngati mukufuna kulumikiza ma waya okhala ndi zotsalira, ndege zinayi zoyendera, ndege imodzi yapansi ndi ndege yamphamvu imodzi imatha kukhazikitsidwa.

L For more dense boards that will use a wireless/analog signal mix: on this type of board, you can choose layers that look like this: signal layer/ground/power layer/ground/signal layer/ground layer. Mumtundu wamtunduwu, zigawo zamkati ndi zakunja zimasiyanitsidwa ndi zigawo ziwiri zokutidwa pansi. Kapangidwe kakang’ono kameneka kamathandiza kupondereza EMI kusakanikirana ndi mawonekedwe amkati. Kapangidwe kake ndi koyeneranso pazida za RF chifukwa mphamvu ya ac ndi kukhazikika kwake kumawongolera bwino kwambiri.

L Kwa PCB yolumikizidwa mwachangu: Ngati mukufuna kupanga PCB yokhala ndi zingwe zambiri zosawoneka bwino, ndibwino kuti musankhe wosanjikiza womwe ukuwoneka ngati uwu: wosanjikiza chizindikiro / wosanjikiza mphamvu / 2 wosanjikiza chizindikiro / chosanjikiza / chosanjikiza. Katunduyu amateteza kwambiri panjira zosazindikira. Okwana ndi oyenera madera amene ntchito mkulu pafupipafupi analogi chizindikiro kapena liwiro digito chizindikiro. Zizindikirozi zidzapatulidwa kuzizindikiro zakunja zothamanga kwambiri. Kuteteza uku kumachitika ndi gawo lamkati, lomwe limathandizanso kuyendetsa zikwangwani mosiyanasiyana mosiyanasiyana kapena kuthamanga msanga.

L Kwa matabwa omwe adzaikidwe pafupi ndi magwero amphamvu a cheza: pamtunduwu, bolodi / malo osanjikiza / mphamvu / kutsekemera / chosanjikiza / chosanjikiza chidzakhala changwiro. Katunduyu amatha kupondereza EMI. Lamination iyi ndiyofunikiranso matabwa omwe amagwiritsidwa ntchito m’malo okhala phokoso.

Ubwino wogwiritsa ntchito ma PCBS osanjikiza 6

Chifukwa cha kapangidwe ka PCB kasanu ndi kamodzi, akhala akupezeka pafupipafupi m’ma circuits angapo apamwamba amagetsi. Mabungwewa amapereka zotsatirazi zomwe zimawapangitsa kukhala otchuka ndi opanga zamagetsi.

Zotsalira zazing’ono: Matabwa osindikizidwawa ndi ocheperako kuposa matabwa ena chifukwa chamapangidwe osiyanasiyana. Izi ndizothandiza makamaka pazida zazing’ono.

Kapangidwe kabwino: Monga tafotokozera kale, kapangidwe ka ma CD a 6 osanjikiza pamafunika kukonzekera kwambiri. This helps reduce errors in detail, thus ensuring a high-quality build. Kuphatikiza apo, opanga ma PCB onse amakono amagwiritsa ntchito njira zosiyanasiyana zoyesera ndikuyendera kuti zitsimikizire kuyenera kwa matabwawa.

Ntchito yopepuka: Yaying’ono PCBS zimatheka pogwiritsa ntchito zinthu zopepuka zomwe zimathandiza kuchepetsa kulemera konse kwa PCB. Mosiyana ndi PCBS yosanjikiza kapena yosanjikiza kawiri, matabwa asanu ndi limodzi samasowa zolumikizira zingapo kuti alumikizane.

L Kukhazikika kolimba: Monga tawonetsera pamwambapa, ma PCBSwa amagwiritsa ntchito magawo angapo otetezera pakati pama circuits ndi magawo awa amalumikizidwa pogwiritsa ntchito zida zodzitchinjiriza ndi zomatira zosiyanasiyana za prereg. Izi zimathandizira kukonza kulimba kwa ma PCBS.

L Kugwiritsa ntchito bwino kwamagetsi: Ma board omwe amasindikizidwa ali ndi magwiridwe antchito amagetsi kuti awonetsetse kuthamanga ndi kuthekera kwakukulu pamapangidwe.