Imisebenzi yomaleko ngamnye kwibhodi ye-Bare PCB

Abaninziibhodi PCB engenantoabathandi boyilo, ngakumbi abaqalayo, abanakho ukuqonda okwaneleyo kweeleya ezahlukeneyongaphandleuyilo lwebhodi PCB, kwaye andazi imisebenzi yabo kunye nokusetyenziswa.Nantsi ingcaciso ecwangcisiweyo yakho:

1. Umaleko oomatshini yinkangeleko yebhodi engenanto yePCB ukuze kugqitywe ngoomatshini.Enyanisweni, xa sithetha ngomatshini umaleko, sithetha imilo kunye nolwakhiwo lwebhodi engenanto PCB.Ingasetyenziselwa ukuseta imilinganiselo yebhodi, amanqaku edatha, amanqaku okulungelelaniswa, imiyalelo yendibano kunye nolunye ulwazi lomatshini.Olu lwazi luyahluka ngokuxhomekeke kwiimfuno zenkampani yoyilo okanyePCB umenzi.Ukongeza, iileya zoomatshini zinokudityaniswa kwezinye iileya ukuvelisa umboniso kunye.

2. Gcina ngaphandle umaleko (owalelweyo wiring umaleko), esetyenziselwa ukuchaza indawo apho amacandelo kunye neingcingo zinokufakwa ngempumelelo kwibhodi PCB engenanto.Indawo evaliweyo izotywe kulo maleko njengendawo esebenzayo yomzila, kwaye ukubekwa okuzenzekelayo kunye nomzila akunakwenziwa ngaphandle kwale ndawo.Umaleko wocingo owalelweyo ngumda xa sichaza ubhedu lweempawu zombane, oko kukuthi, emva kokuba sichaze umaleko wocingo owalelweyo kuqala, kwinkqubo yocingo elandelayo, akunakwenzeka ukuba iingcingo ezineempawu zombane zigqithise eziyalelweyo. iingcingo.Umda woluhlu luhlala lusetyenziselwa ukusebenzisa i-Keep out layer njengoluhlu lomatshini.Le ndlela ayilunganga ngokwenene, ngoko ke kuyacetyiswa ukuba uhlukanise, ngaphandle koko umzi-mveliso webhodi uya kukunika utshintsho lweempawu rhoqo xa uvelisa.

3. Umaleko wesiginali: Umaleko wesiginali usetyenziswa ikakhulu ukulungiselela iingcingo kwibhodi yePCB engenanto.Kubandakanya umaleko ophezulu (umaleko ophezulu), umaleko ongezantsi (umaleko ongezantsi) kunye ne-30 MidLayer (umaleko ophakathi).Izixhobo zibekwe kwi-Top and bottom layers, kwaye iileyile zangaphakathi zihanjiswa.

4. I-paste ephezulu kunye ne-bottom paste yimigangatho ye-stencil ephezulu kunye nesezantsi, ezinobukhulu obufanayo kunye neepads.Oku kungenxa yokuba sinokusebenzisa ezi maleko zimbini ukwenza iistencil xa sisenza i-SMT.Sivele semba umngxuma olingana nephedi kumnatha, kwaye emva koko sibeka isigqubuthelo sentsimbi kwibhodi yePCB engenanto, kwaye saxubha intlama ye-solder ngokulinganayo ngebrashi ene-solder paste.

5. I-Solder ephezulu kunye ne-Bottom Solder Le yimaski ye-solder ukukhusela i-oyile eluhlaza.Sihlala sithi "ukuvula ifestile".Ubhedu oluqhelekileyo okanye umkhondo uhlanganiswe ngeoli eluhlaza ngokungagqibekanga.Ukuba ngokuhambelanayo sigubungela umaleko we-solder imaski Ukuba iphathwa, iya kuthintela i-oyile eluhlaza ekuyigqumeni kwaye iveze ubhedu.

6. Umaleko wendiza yangaphakathi (amandla angaphakathi / umaleko womhlaba): Olu hlobo lomaleko lusetyenziselwa kuphela iibhodi ze-multi-layer, ngokukodwa ukulungiselela imigca yamandla kunye nemigca yomhlaba.Sibiza iibhodi eziphindwe kabini, iibhodi ezine-four-layer, kunye neebhodi ezithandathu, eziqhelekileyo zibhekisela kwinani leempawu zesignali kunye namandla angaphakathi / iindiza zomhlaba.

7. Umaleko weSilkscreen: Umaleko wescreen sesilika usetyenziswa ikakhulu ukubeka ulwazi loshicilelo, olufana nolwandlalo kunye nokuleyibhelilwa kwamacandelo, iimpawu ezahlukeneyo zochazo, njl. njl. kunye nefayile esezantsi yesikrini sesilika.

8. Umaleko omninzi: Iipads kunye ne-vias egqobhozayo kwibhodi ye-PCB engenanto kufuneka ingene kuyo yonke ibhodi ye-PCB engenanto kwaye iseke uqhagamshelo lombane kunye nemigangatho eyahlukeneyo yepateni yokuqhuba.Ke ngoko, inkqubo iye yaseka ngokukhethekileyo umaleko ongabonakaliyo- umaleko-ninzi. Ngokuqhelekileyo, iipads kunye ne-vias zicwangciswa kwiileya ezininzi.Ukuba olu maleko luvaliwe, iipads kunye ne-vias azikwazi ukuboniswa.

9. Drill Drawing (i-drilling layer): I-drilling layer ibonelela ngolwazi lokugaya kwinkqubo yokwenziwa kwebhodi ye-PCB engenanto (efana neepads, i-vias kufuneka ibhorwe).Ialtium ibonelela ngegridi yeDrill (imephu yemiyalelo yokomba) kunye nomzobo wokuDla (imephu yokomba) iileya ezimbini zokomba.

Emva kokuba uyilo lwebhodi yePCB engenanto lugqityiwe, iprototype yebhodi yePCB engenanto kufuneka iqhutywe, kwaye kubalulekile ukukhetha into engenanto.Iprototype yebhodi yePCBumzi-mveliso.I-Huihe Circuits ithatha izixhobo ze-A-grade, iteknoloji yokuvelisa ibhodi ye-PCB, kwaye ixhotyiswe ngezixhobo zokuvelisa ezizenzekelayo ezithembekileyo, izixhobo zokuvavanya kunye neelebhu ezisebenza ngokupheleleyo zomzimba kunye nemichiza, nokuba wenza izixhobo zonxibelelwano, i-elektroniki yemoto, ulawulo lwamashishini, okanye unyango. unyango.& nokhuseleko kunye nezinye iimveliso zobugcisa obuphezulu, okanye zifuna ezinye iinkonzo zebhodi ye-PCB engenanto, iiSekethe ze-Huihe zibonelela ngeenkonzo ezibanzi nezikumgangatho ophezulu.