Kodi pali malire opindika ma board olimba?

M'zaka zaposachedwa, ma PCB okhwima ayamba kutchuka chifukwa cha kuphatikiza kwawo kwapadera komanso kukhazikika. Mtundu uwu wa bolodi wozungulira umalola opanga kupanga njira zatsopano komanso zopulumutsira malo, makamaka m'mapulogalamu omwe matabwa achikhalidwe sangathe kukwaniritsa zofunikira. Ngakhale ma PCB osasunthika amapereka kuthekera kosiyanasiyana, pali zoletsa zina zomwe ziyenera kuganiziridwa, makamaka pankhani ya bend radii.

Utali wopindika wa PCB ndiye kagawo kakang'ono kwambiri komwe bolodi imatha kupindika popanda kuwononga zotsatsira kapena zigawo.Kwa matabwa olimba-flex, kupindika kozungulira ndi gawo lofunikira lomwe limakhudza mwachindunji magwiridwe antchito onse ndi kudalirika kwa board board.

Mukapanga PCB yokhazikika yokhazikika, muyenera kumvetsetsa zochepera zomwe zimayikidwa ndi ma bend radius.Kupitilira utali wopindika womwe ukulimbikitsidwa kungayambitse zovuta monga kutsata delamination, kusweka, kapena kulephera kwazinthu. Chifukwa chake, gawo ili liyenera kuganiziridwa mosamala pagawo la mapangidwe kuti zitsimikizire kuti gululo limagwira ntchito bwino komanso kukhala ndi moyo wautali.

Malire opindika a ma PCB okhazikika amadalira zinthu zosiyanasiyana, kuphatikiza zida zomangira, kuchuluka kwa zigawo, ndi makulidwe onse a bolodi.Tiyeni tifufuze mozama mu chinthu chilichonse kuti timvetsetse bwino momwe amakhudzira:

1. Zipangizo zomangira:Kusankhidwa kwa zinthu, monga zinthu zoyambira ndi zinthu zosinthika zomwe zimagwiritsidwa ntchito, zimakhudza mwachindunji malire a bend radius. Zida zosiyanasiyana zimakhala ndi mawonekedwe osiyanasiyana osinthika, omwe amakhudza utali wocheperako wopindika. Mwachitsanzo, polyimide ndi chisankho chofala pazigawo zosinthika chifukwa cha kusinthasintha kwake komanso kukana kutentha kwambiri. Komabe, kusankha zinthu kuyenera kukhala koyenera, chifukwa kugwiritsa ntchito zinthu zomwe zimasinthasintha kungayambitse kupindika kwambiri komanso kuwononga bolodi.

2. Chiwerengero cha zigawo:Kuchuluka kwa zigawo za rigid-flex board kukhudza malire opindika. Nthawi zambiri, gulu likakhala ndi zigawo zambiri, m'pamenenso utali wopindika uyenera kukhala waukulu. Izi zili choncho chifukwa chosanjikiza chowonjezeracho chimayambitsa kulimba kwambiri, zomwe zimapangitsa kuti bolodi likhale lovuta kupindika popanda kutsanzira kapena kuyambitsa zovuta zina zamakina. Okonza ayenera kuganizira mozama kuchuluka kwa zigawo zofunika pa ntchito yeniyeni ndikusintha utali wa bend moyenerera.

3. Makulidwe onse a mbale:Kukhuthala kwa mbale kumathandizanso kwambiri pozindikira malire a utali wa bend. Mambale okhuthala amakhala ndi ma radii okulirapo kuposa ang'onoang'ono. Kukula kwa bolodi kumachulukirachulukira, zinthuzo zimakhala zolimba, zomwe zimafuna utali wopindika wokulirapo kuti zisawonongeke.

Poganizira zinthu izi ndikuzindikira malire osinthika a ma PCB okhazikika, ndikofunikiranso kuganizira zinthu zilizonse zakunja zomwe zingakhudze magwiridwe antchito a bolodi.Mwachitsanzo, zofunikira zinazake zogwiritsira ntchito monga kusinthasintha kofunikira kapena kuwonekera kwa bolodi yozungulira kumadera otentha kwambiri zitha kukhudzanso malire a ma bend.

Kuti muwonetsetse kuti ma radiyo oyenera amapindika pama board okhazikika, tikulimbikitsidwa kuti tizigwira ntchito limodzi ndi opanga odziwa zambiri komanso opanga omwe ali ndi chidziwitso chochulukirapo komanso ukadaulo pankhaniyi.Akhoza kupereka chidziwitso chamtengo wapatali, chitsogozo ndi chithandizo panthawi yonse ya mapangidwe ndi kupanga. Kuphatikiza apo, kugwiritsa ntchito zida zoyeserera zapamwamba ndikuyesa mokwanira kungathandize kutsimikizira utali wosankhidwa wa bend ndikuwonetsetsa kudalirika kwa board komanso moyo wautali.

Mwachidule, ngakhale ma PCB okhazikika-osinthika amapereka kuthekera kosiyanasiyana kosiyanasiyana, malire awo opindika amayenera kuganiziridwa.Kusankhidwa kwa zipangizo zamapangidwe, chiwerengero cha zigawo ndi makulidwe a gulu lonse zimakhudza mwachindunji malire a bend radius. Mwa kulinganiza zinthuzi mosamala ndikuganizira zofunikira za kagwiritsidwe ntchito, opanga amatha kupanga ma PCB amphamvu komanso odalirika osinthika omwe amakwaniritsa kusinthasintha kofunikira ndikupewa zovuta zilizonse zokhudzana ndi kupindika. Kugwira ntchito ndi akatswiri odziwa zambiri komanso kugwiritsa ntchito zida zapamwamba zoyeserera kungathandize kwambiri kuti mapangidwe a PCB achite bwino.