Momwe Mungapewere Mabowo Opanda Mkuwa mu Ma PCB Okhala ndi Chiŵerengero Chachikulu: Chidziwitso Chofunika Pakupanga Ma PCB
Kumvetsetsa Kufunika kwa Chiŵerengero cha Kukula kwa Dzenje ndi Kukhuthala mu Kupanga PCB
Pakupanga ma PCB, chiŵerengero cha kukula kwa dzenje ndi makulidwe, yomwe imadziwikanso kuti chiŵerengero cha mawonekedwe, ndi chinthu chofunikira kwambiri chomwe chimakhudza ubwino wa maenje ophimba. Chiŵerengerochi chimawerengedwa pogawa makulidwe a PCB ndi kukula kwa dzenje, komwe nthawi zambiri kumatchedwa chiŵerengero cha kutalika ndi m'mimba mwake (L/D).
Mwachitsanzo, ngati makulidwe a PCB ndi 1.60 mm ndipo m'mimba mwake mwa dzenje ndi 0.2 mm, chiŵerengero cha mbali ndi 8:1. Chiŵerengero cha mbali chotsika chimasonyeza matabwa opyapyala okhala ndi mabowo akuluakulu, zomwe nthawi zambiri zimapangitsa kuti plating ikhale yabwino chifukwa cha kugawa kwa ayoni mofanana panthawi ya electroplating.
Komabe, Ma PCB okhala ndi chiŵerengero chapamwamba—omwe ali ndi matabwa opyapyala ndi mabowo ang'onoang'ono—amayambitsa mavuto akulu panthawi yopangira ma electroplating, zomwe zimapangitsa kuti pakhale zolakwika monga mabowo opanda mkuwa (yomwe imadziwikanso kuti "blind vias" kapena "voids") komanso plating yosakhala yabwino.
Kodi N’chiyani Chimayambitsa Mabowo Opanda Mkuwa mu Ma PCB Okhala ndi Chiŵerengero Chachikulu?
- Madontho Ang'onoang'ono ndi Kutsekeka
Mu chikhalidwe electroplating yamagetsi mwachindunji (DC) Pochita izi, njira yopangira ma electroplating ingathe kugwira ma thovu ang'onoang'ono m'dzenje, zomwe zingalepheretse mkuwa kuphimba makoma a mabowo mofanana. Thovu zimenezi zimatha kuletsa kuyenda kwa mkuwa, zomwe zimapangitsa kuti mkuwa usalowe m'malo okwanira. - Kuyeretsa Koyipa Panthawi Yoyembekezera Chithandizo
Ngati PCB sinatsukidwe bwino musanayike, zinthu zodetsa kapena zotsalira zitha kukhalabe m'mabowo. Izi zimalepheretsa mkuwa kuti usamamatire ku makoma a mabowo, zomwe zimapangitsa kuti pakhale mipata ndi malo ofooka. - Zolakwika za kubowola
Mukaboola mabowo okhala ndi chiŵerengero chapamwamba, ngati chobooleracho sichili chakuthwa mokwanira, chingayambitse mavuto mkati mwa dzenjelo. M'malo mochotsa bwino zinthuzo, chobooleracho chingakoke ndikung'amba utomoni kapena fiberglass, ndikusiya malo ouma. Izi zitha kulepheretsa njira yopangira ma plating ndikupangitsa kuti mkuwa usagwire bwino ntchito.
Momwe Kuchuluka kwa Mawonekedwe Abwino Kumakhudzira Ubwino wa Plating
Kwa Ma PCB okhala ndi chiŵerengero chapamwamba (monga, 14:1, 16:1, kapena ngakhale 20:1), njira yopangira ma plating imakhala yovuta kwambiri. Njira yopangira ma electroplating imavutika kuyika mkuwa mofanana, makamaka mkati mwa mabowo, zomwe zimapangitsa kuti pakhale zotsatira za galu ndi fupaIzi zikutanthauza kuti pamwamba pa dzenjelo pamakhala pokulirapo pomwe pansi pake pamakhalabe pansi pa dzenjelo.
Kuphatikiza apo, dzenje la kuchuluka kwa magetsi zimasiyana pamwamba pa dzenje. Pakhomo la dzenje, kuchuluka kwa magetsi kumakhala kwakukulu, pomwe m'zigawo zakuya, kumakhala kotsika. Kugawanika kosagwirizana kumeneku kumapangitsa kuti ma plating asagwire bwino m'zigawo zapansi za dzenje, zomwe zimapangitsa kuti pakhale mabowo opanda mkuwa.
Mayankho Apamwamba Oletsa Mabowo Opanda Mkuwa mu Ma PCB Okhala ndi Chiŵerengero Chachikulu
Pofuna kupewa mavuto amenewa, mafakitale amakono opanga ma PCB akutembenukira ku kuphimba kwa kugunda kwa mtima ukadaulo, womwe umagonjetsa zofooka zambiri za DC electroplating yachikhalidwe.
Kupaka Ma Pulse kwa Kuyika Mkuwa Wofanana
Kupaka kwa pulse kumagwiritsa ntchito mphamvu yosinthira ndi ma pulse olamulidwa kuti kuwonjezere kugwira ntchito bwino kwa mkuwa. Mosiyana ndi kuyika kwa DC kwachizolowezi, kuyika kwa pulse kumawonjezera kuyenda kwa ma ion mkati mwa dzenje, zomwe zimapangitsa kuti mkuwa ukhale wofanana kwambiri kudutsa dzenjelo, ponseponse pakhomo ndi m'madera akuya. Izi zimapangitsa kuti kuyika kwa plating kukhale kwabwino ndipo kumapewa kupanga mabowo opanda mkuwa.
Kuphatikiza apo, pulse plating imatsimikizira kuti mkuwa umayikidwa mofanana popanda kuwonjezera kwambiri makulidwe a mkuwa pamwamba pa bolodi, kusunga umphumphu wa ma circuits okwera kwambiri, mizere yopyapyala, ndi kupinga kolondola.
Njira Zina
- Njira Zabwino Zobowolera
Kugwiritsa ntchito ma drill olondola kwambiri kungathandize kuti mabowo akhale osalala komanso oyera, kukonza bwino malo ndikuwonetsetsa kuti njira yopangira ma plating ndi yothandiza kwambiri. - Chithandizo Choyenera Choyambirira
Kuyeretsa bwino ndi kukonza mabowo a PCB kungathandize kuonetsetsa kuti mkuwa umamatira bwino. kupukutira mankhwala kapena kuyeretsa plasma Njira zoyeretsera zitha kuchotsa zinthu zilizonse zodetsa ndikuwonjezera ubwino wa khoma la dzenje, zomwe zimapangitsa kuti pakhale zotsatira zabwino zokonzera. - Kugwiritsa Ntchito Zipangizo Zapamwamba Zopangira Ma Plating
Mafakitale amakono a PCB amagwiritsa ntchito zida zomwe zapangidwa mwapadera kuti zigwire ma PCB okhala ndi chiŵerengero chapamwamba cha zinthu. Izi zikuphatikizapo matanki opangidwa ndi ma electroplating abwino, makina oyeretsera mayankho apamwamba, komanso njira zabwino zowongolera ma current.
Kodi mungapange bwanji dzenje pachithunzi chili pansipa?
✅Yankho: Pulsed VCP ya Richfulljoy imatha kupewa kupezeka kwa maenje ndi mabowo ochulukirapo mu DC plating. Kugwiritsa ntchito bwino kwa plating yamagetsi ndi kwakukulu, ndipo pansi pa dongosolo la pulse plating, kungapangitse mkati ndi kunja kwa dzenje kukhala bwino kwambiri. Mphamvu yogawa pulasitiki ikhoza kupezeka, ndipo mkuwa wa pamwamba suwonjezeka, ndipo mkuwa wa pamwamba suwonjezeka, ndipo dera lopapatiza ndi impedance yolondola kwambiri zitha kutsimikizika.
Kukweza Ubwino wa Kupanga Ma PCB Okhala ndi Mbali Yaikulu
Kupanga PCB pamlingo wapamwamba, kupewa mabowo opanda mkuwa ndikofunikira kwambiri kuti zinthu zisunge umphumphu ndi magwiridwe antchito. Mwa kumvetsetsa zovuta zokhudzana ndi ma plating mu mapangidwe apamwamba komanso kugwiritsa ntchito ukadaulo wapamwamba monga kuphimba kwa kugunda kwa mtima, Opanga ma PCB amatha kutsimikizira kuti ma plating ndi abwino komanso odalirika.
Ngati mukuchita nawo Kupanga PCB kapena kugwira ntchito ndi Mafakitale opanga ma PCB, ndikofunikira kudziwa njira izi ndikugwira ntchito ndi opanga omwe ali ndi ukadaulo wogwiritsa ntchito ma PCB apamwamba pogwiritsa ntchito ukadaulo waposachedwa.
