- Kodi kubowola kumbuyo ndi chiyani?
Kubowola kumbuyo ndi mtundu wapadera wa kubowola dzenje lakuya. Popanga matabwa amitundu yambiri, monga matabwa a 12-wosanjikiza, tifunika kugwirizanitsa gawo loyamba ndi lachisanu ndi chinayi. Kawirikawiri, timabowola dzenje (kubowola kamodzi) ndikumiza mkuwa.Mwa njira iyi, chipinda choyamba chimagwirizana mwachindunji ndi chipinda cha 12. Ndipotu, timangofunika chipinda choyamba kuti tigwirizane ndi chipinda cha 9, ndi chipinda cha 10 mpaka 12 chifukwa palibe kugwirizana kwa mzere, ngati mzati. kulankhulana signals.So kubowola ndi mzati redundant (STUB mu makampani) kuchokera n'zosiyana mbali (kubowola yachiwiri) .Chotchedwa mmbuyo kubowola, koma zambiri osati kubowola oyera, chifukwa ndondomeko wotsatira adzakhala electrolysis pa mkuwa pang'ono, ndi kubowola nsonga. lokha loloza.Chifukwa chake, wopanga PCB adzasiya mfundo yaying'ono. Kutalika kwa STUB kwa STUB iyi kumatchedwa mtengo wa B, womwe nthawi zambiri umakhala wa 50-150um.
2.The ubwino pobowola kumbuyo
1) kuchepetsa kusokoneza phokoso
2) kusintha kukhulupirika kwa chizindikiro
3) makulidwe am'deralo amachepetsa
4) kuchepetsa kugwiritsa ntchito mabowo akhungu okwiriridwa ndikuchepetsa zovuta kupanga PCB.
3. Kugwiritsa ntchito kubowola kumbuyo
Kubwerera kubowola analibe kugwirizana kulikonse kapena zotsatira za gawo dzenje, kupewa kuyambitsa chiwonetsero cha kufala mkulu-liwiro chizindikiro, kubalalitsa, kuchedwa, etc., kumabweretsa chizindikiro "kusokoneza" kafukufuku wasonyeza kuti chachikulu. zinthu kulimbikitsa dongosolo chizindikiro chizindikiro umphumphu kamangidwe, mbale chuma, kuwonjezera pa zinthu monga mizere kufala, zolumikizira, chip phukusi, kalozera dzenje zimakhudza kwambiri kukhulupirika chizindikiro.
4. Ntchito mfundo ya kumbuyo kubowola
Pamene singano yobowola ikubowola, kachipangizo kakang'ono kamene kamapangidwa pamene singano yobowola ikakhudza zojambulazo zamkuwa pamwamba pa mbale yoyambira imapangitsa kuti mbaleyo ikhale yotalika, ndiyeno kubowola kudzachitika molingana ndi kuya kwake, ndipo kubowola kudzayimitsidwa pamene kuya kwa kubowola kwafikira.
5.Back pobowola kupanga ndondomeko
1) perekani PCB yokhala ndi dzenje lothandizira. Gwiritsani ntchito dzenje kuti muyike PCB ndikubowola dzenje;
2) electroplating ndi PCB pambuyo pobowola dzenje, ndi kusindikiza dzenje ndi filimu youma pamaso electroplating;
3) kupanga akunja wosanjikiza zithunzi pa electroplated PCB;
4) kuchititsa chitsanzo electroplating pa PCB pambuyo kupanga chitsanzo akunja, ndi kuchita youma filimu kusindikiza pa dzenje malo pamaso chitsanzo electroplating;
5) gwiritsani ntchito dzenje loyikapo lomwe limagwiritsidwa ntchito ndi kubowola kumodzi kuti muyike pobowola kumbuyo, ndipo gwiritsani ntchito chodulira kumbuyo kubowola dzenje la electroplating lomwe likufunika kubweza;
6) Tsukani pobowola mmbuyo mutatha kubowola kumbuyo kuti muchotse zotsalira pobowola kumbuyo.
6. Makhalidwe aukadaulo a mbale yoboola kumbuyo
1) Gulu lokhazikika (zambiri)
2) Nthawi zambiri ndi 8 - 50 zigawo
3) Board makulidwe: pa 2.5mm
4) Makulidwe awiri ndi akulu
5) Kukula kwa bolodi ndi kwakukulu
6) Bowo locheperako la kubowola koyamba ndi> = 0.3mm
7) Dera lakunja locheperako, kapangidwe kambiri kakang'ono ka dzenje loponderezana
8) Bowo lakumbuyo nthawi zambiri limakhala lalikulu 0.2mm kuposa dzenje lomwe likufunika kubowoledwa
9) Kulekerera kwakuya ndi +/- 0.05mm
10) Ngati kubowola kumbuyo kumafuna kubowola ku M wosanjikiza, makulidwe apakati pakati pa M wosanjikiza ndi m-1 (wosanjikiza wotsatira wa M wosanjikiza) azikhala osachepera 0.17mm.
7.Kugwiritsa ntchito kwakukulu kwa mbale yobowola kumbuyo
Zida zoyankhulirana, seva yayikulu, zamagetsi zamankhwala, zankhondo, zamlengalenga ndi zina. Monga magulu ankhondo ndi zakuthambo ndi mafakitale ovuta, Ndege zakumbuyo zam'nyumba nthawi zambiri zimaperekedwa ndi bungwe lofufuza, kafukufuku ndi chitukuko chamagulu ankhondo ndi zakuthambo kapena opanga ma PCB okhala ndi zida zankhondo zolimba komanso zakuthambo. mafakitale, ndipo tsopano malo opangira zida zoyankhulirana akukula pang'onopang'ono.