Ntchito za gawo lililonse mu bolodi la Bare PCB

AmbiriPCB board yopanda kanthuokonda mapangidwe, makamaka novices, alibe chidziwitso chokwanira cha zigawo zosiyanasiyanaopandaPCB board design, ndipo sindikudziwa ntchito zawo ndi ntchito.Nali kulongosoledwa mwadongosolo kwa inu:

1. Makina osanjikiza ndi mawonekedwe a bolodi lonse lopanda kanthu la PCB kuti amalize makina.M'malo mwake, tikamalankhula za wosanjikiza wamakina, tikutanthauza mawonekedwe ndi mawonekedwe a bolodi lonse lopanda kanthu la PCB.Ikhoza kugwiritsidwanso ntchito kukhazikitsa miyeso ya bolodi, zizindikiro za deta, zizindikiro zogwirizanitsa, malangizo a msonkhano ndi zina zamakina.Zambirizi zimasiyanasiyana malinga ndi zofunikira za kampani yojambula kapenaWopanga PCB.Kuphatikiza apo, zigawo zamakina zitha kumangirizidwa ku zigawo zina kuti zitulutse zowonetsera pamodzi.

2. Khalani kunja wosanjikiza (woletsedwa mawaya wosanjikiza), wogwiritsidwa ntchito kutanthauzira malo omwe zigawo ndi mawaya zitha kuyikidwa bwino pa bolodi lopanda kanthu la PCB.Malo otsekedwa amakokedwa pamzerewu ngati malo abwino olowera, ndipo kuyikika ndi njira yokhayo sikungachitike kunja kwa derali.Chosanjikiza choletsedwa cha mawaya ndi malire pamene tikufotokozera mkuwa wa makhalidwe amagetsi, ndiko kuti, titatha kufotokozera wosanjikiza woletsedwa woyamba, muzotsatira zopangira mawaya, sizingatheke kuti mawaya omwe ali ndi mphamvu zamagetsi apitirire zoletsedwa. waya.Malire a wosanjikiza nthawi zambiri amagwiritsidwa ntchito pogwiritsira ntchito Keep out layer ngati makina osanjikiza.Njirayi ndi yolakwika, choncho tikulimbikitsidwa kuti musiyanitse, apo ayi fakitale ya bolodi idzakupatsani kusintha kwa chikhalidwe nthawi iliyonse yomwe mumatulutsa.

3. Wosanjikiza wa Signal: Chizindikiro cha siginecha chimagwiritsidwa ntchito makamaka kukonza mawaya pa bolodi lopanda kanthu la PCB.Kuphatikiza pamwamba (pamwamba), wosanjikiza pansi (pansi) ndi 30 MidLayer (pakati).Zipangizo zimayikidwa Pamwamba ndi pansi, ndipo zigawo zamkati zimayendetsedwa.

4. Phala la pamwamba ndi pansi ndi mapepala apamwamba ndi apansi, omwe ali ofanana ndi mapepala.Izi makamaka chifukwa titha kugwiritsa ntchito zigawo ziwirizi kupanga ma stencil tikamachita SMT.Tidangokumba dzenje la kukula kwa pad paukonde, ndiyeno tidayika chivundikiro chazitsulo pa bolodi lopanda kanthu la PCB, ndikutsuka phala la solder mofanana ndi burashi ndi phala la solder.

5. Top Solder ndi Pansi Solder Ichi ndi solder chigoba kuteteza wobiriwira mafuta Kuphunzira.Nthawi zambiri timati "kutsegula zenera".Mkuwa wamba kapena zotsalira zimaphimbidwa ndi mafuta obiriwira mwachisawawa.Ngati titaphimbanso chigoba cha solder Ngati chitagwiridwa, zimalepheretsa mafuta obiriwira kuti asaphimbe ndikuwulula mkuwa.

6. Mzere wa ndege wamkati (mphamvu zamkati / pansi): Mtundu uwu umangogwiritsidwa ntchito pamagulu amitundu yambiri, makamaka pokonza mizere yamagetsi ndi mizere yapansi.Timawatcha matabwa a zigawo ziwiri, matabwa a magawo anayi, ndi mapepala asanu ndi limodzi, omwe nthawi zambiri amatanthawuza chiwerengero cha zigawo za zizindikiro ndi ndege zamkati / pansi.

7. Silkscreen wosanjikiza: Silkscreen wosanjikiza umagwiritsidwa ntchito makamaka kuyika mfundo zosindikiza, monga autilaini ndi zilembo za zigawo, zilembo zosiyanasiyana, etc. Altium amapereka Top Overlay ndi Bottom Overlay zigawo ziwiri silika silkscreen, motero, kuyika pamwamba silika chophimba wapamwamba wapamwamba. ndi fayilo yapansi ya silika.

8. Mipikisano wosanjikiza: The ziyangoyango ndi odutsa vias pa anabala PCB bolodi ayenera kudutsa lonse anabala PCB bolodi ndi kukhazikitsa kugwirizana magetsi ndi zigawo zosiyanasiyana conductive chitsanzo.Chifukwa chake, dongosololi lakhazikitsa mwapadera wosanjikiza - wosanjikiza wambiri.Ngati wosanjikiza uwu watsekedwa, mapepala ndi vias sangathe kuwonetsedwa.

9. Drill Drawing (kubowola wosanjikiza): Kubowola wosanjikiza kumapereka chidziwitso pakubowola mukupanga kwa bolodi lopanda kanthu la PCB (monga pads, vias ayenera kubowola).Altium imapereka gulu la Drill (mapu a malangizo obowola) ndi Drill zojambula (mapu obowola) zigawo ziwiri zobowola.

Pambuyo pomaliza kupangidwa kwa bolodi la PCB, mtundu wa PCB wopanda kanthu uyenera kuchitidwa, komanso ndikofunikira kusankha chopanda bwino.PCB board prototypefakitale.Madera a Huihe amatenga zida za A-grade, ukadaulo wopanga ma board a masters a PCB, ndipo ali ndi zida zodalirika zopangira zokha, zida zoyezera komanso ma labotale athupi ndi mankhwala, kaya mukugwiritsa ntchito zida zolumikizirana, zamagetsi zamagalimoto, kuwongolera mafakitale, kapena zamankhwala. chithandizo.& chitetezo ndi zinthu zina zamakono, kapena mukufuna ntchito zina zopanda PCB board, Huihe Circuits amakupatsirani ntchito zambiri komanso zapamwamba kwambiri.