Ma board ozungulira olimba-flex: mfundo zazikulu pakukonza ndi kuyanika.

Pokonza ma board ozungulira olimba, chovuta chachikulu ndi momwe mungakwaniritsire kukanikiza bwino pamalumikizidwe a matabwa.Pakadali pano, ichi ndichinthu chomwe opanga PCB amayenera kusamala kwambiri.Pansipa, Capel akupatsirani chidziwitso chatsatanetsatane cha mfundo zingapo zomwe zimafunikira chisamaliro.

Regid Flexible PCB Substrate ndi Prepreg Lamination: Zofunika Kwambiri pakuchepetsa Warpage ndi Kuchepetsa Kupsinjika kwa Thermal

Kaya mukupanga gawo laling'ono laling'ono kapena lamination losavuta, kuyang'ana kwa Warp ndi weft wa nsalu yamagalasi ndikofunikira.Kunyalanyaza zinthu izi kungayambitse kupsinjika kwamafuta ndi kutha kwa nkhondo.Kuti muwonetsetse zotsatira zapamwamba kwambiri kuchokera ku ndondomeko ya lamination, chidwi chiyenera kuperekedwa kuzinthu izi.Tiyeni tifufuze tanthauzo la mayendedwe a warp ndi weft, ndikuwona njira zothandiza zochepetsera kupsinjika kwa kutentha ndi kuchepetsa kugwa kwankhondo.

Kuyika kwa substrate ndi prepreg lamination ndi njira zodziwika bwino popanga, makamaka popanga matabwa osindikizidwa (PCBs), zida zamagetsi ndi zida zophatikizika.Njirazi zimaphatikizapo kulumikiza zigawo za zinthu pamodzi kuti zikhale zolimba komanso zogwira ntchito.Pakati pa zinthu zambiri zopangira bwino lamination, kuyang'ana kwa nsalu ya galasi mu warp ndi weft kumagwira ntchito yaikulu.

Warp ndi weft amatanthawuza mbali ziwiri zazikulu za ulusi muzinthu zoluka monga nsalu zamagalasi.Mayendedwe a warp nthawi zambiri amayenda molingana ndi kutalika kwa mpukutuwo, pomwe njira ya weft imayenda molunjika ku warp.Mayendedwe awa ndi ofunikira chifukwa amazindikira momwe zinthu zimagwirira ntchito, monga kulimba kwamphamvu komanso kukhazikika kwa mawonekedwe.

Pankhani ya gawo lapansi lamination kapena prepreg lamination, yoyenera warp ndi weft mayikidwe a galasi nsalu ndi zofunika kukhalabe ankafuna mawotchi katundu chomaliza.Kulephera kugwirizanitsa bwino machitidwewa kungayambitse kusokoneza kukhulupirika kwa kamangidwe komanso kuwonjezeka kwa chiwopsezo cha nkhondo.

Kupanikizika kwamafuta ndi chinthu china chofunikira chomwe muyenera kuganizira panthawi ya lamination.Kupsyinjika kwa kutentha ndi kupsyinjika kapena kusintha komwe kumachitika pamene chinthu chimasintha kutentha.Zitha kubweretsa mavuto osiyanasiyana kuphatikiza warping, delamination, komanso ngakhale kulephera kwa makina a nyumba laminated.

Kuti muchepetse kupsinjika kwa kutentha ndikuwonetsetsa kuti njira yopangira lamination ipambana, ndikofunikira kutsatira malangizo ena.Choyamba, onetsetsani kuti nsalu yagalasi imasungidwa ndikusamalidwa pamalo otenthetsera kutentha kuti muchepetse kusiyana kwa kutentha pakati pa zinthu ndi njira yopangira lamination.Sitepe iyi imathandizira kuchepetsa chiopsezo cha nkhondo chifukwa cha kuwonjezereka kwadzidzidzi kwa kutentha kapena kuchepa.

Kuonjezera apo, kutentha komwe kumayendetsedwa ndi kuziziritsa panthawi ya lamination kumatha kuchepetsa kupsinjika kwa kutentha.Tekinolojeyi imathandizira kuti zinthuzo zisinthe pang'onopang'ono kusintha kwa kutentha, kuchepetsa chiopsezo cha kugunda kapena kusintha kwamtundu.

Nthawi zina, zingakhale zopindulitsa kugwiritsa ntchito njira yochepetsera kupsinjika kwa kutentha monga kuchiritsa pambuyo pa lamination.Njirayi imaphatikizapo kuyika mawonekedwe a laminated kuti asinthe komanso kutentha pang'onopang'ono kuti muchepetse kupsinjika kulikonse komwe kumatsalira.Imathandiza kuchepetsa warpage, kumapangitsanso kukhazikika kwa dimensional ndikutalikitsa moyo wa zinthu zopangidwa laminated.

Kuphatikiza paziganizozi, ndikofunikiranso kugwiritsa ntchito zida zabwino komanso kutsatira njira zoyenera zopangira panthawi yopangira lamination.Kusankhidwa kwa nsalu zamagalasi apamwamba kwambiri komanso zida zomangira zomwe zimagwirizana zimatsimikizira magwiridwe antchito abwino ndikuchepetsa chiwopsezo chankhondo ndi kupsinjika kwamafuta.

Kuphatikiza apo, kugwiritsa ntchito njira zoyezera zolondola komanso zodalirika, monga laser profilometry kapena ma strain gauges, zitha kupereka chidziwitso chofunikira pamasewera omenyera nkhondo komanso kupsinjika kwamapangidwe a laminated.Kuwunika pafupipafupi kwa magawowa kumathandizira kusintha kwanthawi yake ndikuwongolera komwe kuli kofunikira kuti musunge mikhalidwe yomwe mukufuna.

Mfundo yofunika kuiganizira posankha zinthu zoyenera pa ntchito zosiyanasiyana ndi makulidwe ndi kuuma kwa zinthuzo.

Izi ndizowona makamaka kwa matabwa okhwima omwe amafunika kukhala amtundu winawake ndi kuuma kuti atsimikizire kuti ntchito yoyenera ndi yolimba.

Mbali yosinthika ya bolodi yolimba nthawi zambiri imakhala yopyapyala kwambiri ndipo ilibe nsalu yagalasi.Izi zimapangitsa kuti zisawonongeke zachilengedwe komanso kutentha.Kumbali ina, gawo lolimba la bolodi likuyembekezeka kukhala lokhazikika kuchokera kuzinthu zakunja zotere.

Ngati gawo lolimba la bolodi liribe makulidwe kapena kuuma kwina, kusiyana kwa momwe zimasinthira poyerekeza ndi gawo losinthika kumatha kuwonekera.Izi zingayambitse kugwedezeka kwakukulu panthawi yogwiritsira ntchito, zomwe zingasokoneze ndondomeko ya soldering ndi ntchito yonse ya bolodi.

Komabe, kusiyana kumeneku kungawoneke ngati kopanda phindu ngati mbali yolimba ya bolodi ili ndi mlingo wa makulidwe kapena kuuma.Ngakhale gawo losinthika lisintha, kukhazikika kwathunthu kwa bolodi sikungakhudzidwe.Izi zimatsimikizira kuti bolodi imakhalabe yokhazikika komanso yodalirika panthawi ya soldering ndi ntchito.

Ndikoyenera kudziwa kuti ngakhale makulidwe ndi kuuma ndizofunikira, pali malire a makulidwe abwino.Ngati mbalizo zimakhala zolemera kwambiri, sikuti bolodilo lidzakhala lolemera, komanso lidzakhala lopanda chuma.Kupeza kulinganiza koyenera pakati pa makulidwe, kuuma ndi kulemera ndikofunikira kuti muwonetsetse kuti ntchito yabwino komanso yotsika mtengo.

Kuyesera kwakukulu kwachitika kuti adziwe makulidwe oyenera a matabwa olimba.Zoyeserazi zikuwonetsa kuti makulidwe a 0.8 mm mpaka 1.0 mm ndioyenera kwambiri.Mkati mwamtundu uwu, bolodi imafika pamlingo wofunidwa wa makulidwe ndi kuuma kwinaku akusungabe kulemera kovomerezeka.

Posankha bolodi lolimba ndi makulidwe oyenera ndi kuuma, opanga ndi ogwiritsa ntchito akhoza kuonetsetsa kuti bolodilo lidzakhalabe lathyathyathya komanso lokhazikika ngakhale pansi pazikhalidwe zosiyanasiyana.Izi zimathandizira kwambiri khalidwe lonse ndi kudalirika kwa ndondomeko ya soldering ndi kupezeka kwa bolodi.

Zinthu zomwe ziyenera kuganiziridwa popanga makina ndi zoyenera:

ma rigid flex circuit board ndi ophatikizira magawo osinthika komanso matabwa olimba.Kuphatikiza uku kumaphatikizapo ubwino wa ziwirizi, zomwe zimakhala ndi kusinthasintha kwa zipangizo zolimba komanso zolimba.Chofunikira chapaderachi chimafuna ukadaulo wapadera wokonza kuti zitsimikizire kuti zikuyenda bwino.

Polankhula za chithandizo cha mawindo osinthika pamatabwa awa, mphero ndi imodzi mwa njira zofala.Nthawi zambiri, pali njira ziwiri mphero: mwina mphero choyamba, ndiyeno flexibly mphero, kapena akamaliza njira zonse yapita ndi akamaumba komaliza, ntchito laser kudula kuchotsa zinyalala.Kusankhidwa kwa njira ziwirizi kumadalira kapangidwe kake ndi makulidwe a bolodi yofewa komanso yovuta yophatikizira yokha.

Ngati zenera losinthika liyamba kupangidwa kuti liwonetsetse kuti mphero ndiyofunika kwambiri.Kugaya kuyenera kukhala kolondola, koma osati kochepa kwambiri chifukwa sikuyenera kukhudza njira yowotcherera.Kuti izi zitheke, mainjiniya amatha kukonzekera mphero ndipo amatha kupukuta pawindo losinthika molingana.Kupyolera mu izi, mapindikidwe amatha kuwongoleredwa, ndipo njira yowotcherera siyimakhudzidwa.

Komano, ngati mwasankha kuti mphero kusintha zenera, laser kudula adzakhala mbali.Kudula kwa laser ndi njira yabwino yochotsera zinyalala zosinthika zawindo.Komabe, tcherani khutu ku kuya kwa laser kudula FR4.Muyenera kukhathamiritsa magawo opondereza moyenera kuti muwonetsetse kudula bwino kwa mawindo osinthika.

Pofuna kukhathamiritsa magawo opondereza, magawo omwe amagwiritsidwa ntchito potengera magawo osinthika ndi matabwa olimba ndiwopindulitsa.Kukhathamiritsa kokwanira kumeneku kumatha kuwonetsetsa kuti kukakamizidwa koyenera kumagwiritsidwa ntchito panthawi yamphamvu yosanjikiza, potero kupanga bolodi lophatikizana lolimba komanso lolimba.

Zomwe zili pamwambazi ndizinthu zitatu zomwe zimafunikira chisamaliro chapadera mukakonza ndikukankhira ma board ozungulira olimba.Ngati muli ndi mafunso okhudza ma board board, chonde omasuka kutifunsa.Capel wapeza zaka 15 zachidziwitso cholemera mumakampani a board board, ndipo ukadaulo wathu wama board okhwima ndi okhwima.