Kuthetsa pawiri mbali pcb matenthedwe kukula ndi mavuto matenthedwe nkhawa

Kodi mukuyang'anizana ndi kukula kwamafuta komanso zovuta zamafuta omwe ali ndi ma PCB am'mbali ziwiri? Osayang'ananso kwina, mu positi iyi yabulogu tikuwongolerani momwe mungathetsere mavutowa moyenera. Koma tisanalowe m’mayankho athu, tiyeni tidzidziwitse.

Capel ndi wodziwa kupanga makampani ozungulira dera ndipo wakhala akutumikira makasitomala kwa zaka 15. Ili ndi fakitale yake yosinthika ya board board, fakitale ya board board yokhazikika, fakitale ya smt board board, ndipo yakhazikitsa mbiri yabwino yopanga ma board apamwamba apakati mpaka apamwamba. Zida zathu zotsogola zodzipangira zokha komanso gulu lodzipereka la R&D zikuwonetsa kudzipereka kwathu kuchita bwino. Tsopano, tiyeni tibwererenso kuthana ndi vuto lakukula kwamafuta ndi kupsinjika kwamafuta pa PCB za mbali ziwiri.

Kukula kwamafuta ndi kupsinjika kwamafuta ndizovuta zomwe zimachitika pamakampani opanga PCB. Mavutowa amayamba chifukwa cha kusiyana kwa coefficient of thermal expansion (CTE) ya zinthu zomwe zimagwiritsidwa ntchito mu PCB. Zikatenthedwa, zida zimakula, ndipo ngati kuchuluka kwazinthu zosiyanasiyana kumasiyana kwambiri, kupsinjika kumatha kuyambitsa kulephera kwa PCB. Kuti muthetse vutoli, chonde tsatirani malangizo awa:

1. Kusankha zinthu:

Sankhani zida zofananira ndi CTE. Pogwiritsira ntchito zipangizo zomwe zili ndi mitengo yowonjezereka yofanana, kuthekera kwa kupsinjika kwa kutentha ndi mavuto okhudzana ndi kuwonjezereka kungachepe. Funsani akatswiri athu kapena funsani zamakampani kuti mudziwe zinthu zabwino kwambiri zomwe mukufuna.

2. Zolinga zamapangidwe:

Ganizirani masanjidwe ndi mapangidwe a PCB kuti muchepetse kupsinjika kwa kutentha. Ndibwino kuti tisunge zigawo zotentha kwambiri kutali ndi madera omwe ali ndi kusinthasintha kwakukulu kwa kutentha. Zida zoziziritsa bwino, kugwiritsa ntchito matenthedwe otenthetsera, komanso kuphatikiza matenthedwe athanzi kungathandizenso kutaya kutentha bwino komanso kuchepetsa nkhawa.

3. Layer stacking:

Kuwunjika kwa PCB yokhala ndi mbali ziwiri kumakhudza momwe amatenthera. Kukhazikika koyenera komanso kofanana kumathandiza kugawa kutentha mofanana, kuchepetsa mwayi wa kutentha kwa kutentha. Lumikizanani ndi mainjiniya athu kuti mupange njira yothanirana ndi zovuta zanu zakukulitsa kutentha.

4. Makulidwe a mkuwa ndi mawaya:

Makulidwe a mkuwa ndi m'lifupi mwake zimagwira ntchito yofunika kwambiri pakuwongolera kupsinjika kwamatenthedwe. Zigawo zamkuwa zokulirapo zimapereka mphamvu yabwino yotenthetsera ndipo zimatha kuchepetsa zotsatira zakukula kwamafuta. Momwemonso, njira zokulirapo zimachepetsa kukana komanso zimathandizira kutayika koyenera kwa kutentha.

5. Kusankhidwa kwa prepreg ndi core materials:

Sankhani prepreg ndi core zipangizo ndi CTE ofanana ndi mkuwa cladding kuchepetsa chiwopsezo cha delamination chifukwa matenthedwe kupsyinjika. Kuchiritsidwa bwino ndi kumangirizidwa prepreg ndi zida zapakati ndizofunikira kuti pakhale kukhulupirika kwa PCB.

6. Kulepheretsa koyendetsedwa:

Kusunga zoletsa zoyendetsedwa pamapangidwe onse a PCB kumathandizira kuthana ndi kupsinjika kwamafuta. Pokhala ndi njira zazifupi komanso kupewa kusintha kwadzidzidzi pakutsata m'lifupi, mutha kuchepetsa kusintha kwa impedance chifukwa chakukula kwamafuta.

7. Ukadaulo wowongolera kutentha:

Kugwiritsa ntchito njira zoyendetsera kutentha monga masinki otentha, zoyatsira zotenthetsera, ndi njira zotenthetsera zingathandize kutulutsa kutentha bwino. Ukadaulo uwu umakulitsa magwiridwe antchito onse a PCB ndikuchepetsa chiwopsezo cha kulephera kokhudzana ndi kupsinjika kwa kutentha.

Pogwiritsa ntchito njirazi, mutha kuchepetsa kwambiri kufalikira kwamafuta ndi zovuta zamafuta mu PCB zambali ziwiri. Ku Capel, tili ndi ukadaulo ndi zida zokuthandizani kuthana ndi zovuta izi. Gulu lathu la akatswiri litha kukupatsirani chitsogozo chofunikira komanso chithandizo pagawo lililonse la njira yanu yopangira PCB.

Musalole kukula kwamafuta ndi kupsinjika kwamafuta kukhudze magwiridwe antchito a PCB yanu ya mbali ziwiri. Lumikizanani ndi Capel lero kuti mumve bwino komanso kudalirika komwe kumabwera ndi zaka 15 zomwe takumana nazo pantchito yama board board. Tiyeni tigwire ntchito limodzi kuti tipange PCB yomwe ikugwirizana ndi zomwe mukuyembekezera.