Ma circuit board osindikizidwa osinthasintha ndi mtundu wa circuit board wopindika wopangidwa pazifukwa zingapo. Ubwino wake kuposa ma circuit board achikhalidwe ndi monga kuchepetsa zolakwika zosonkhanitsira, kukhala olimba kwambiri m'malo ovuta, komanso kukhala okhoza kuthana ndi ma electronic configurations ovuta kwambiri. Ma circuit board amenewa amapangidwa pogwiritsa ntchito electrolytic copper foil, chinthu chomwe chikuwoneka kuti ndi chimodzi mwazofunikira kwambiri m'mafakitale a zamagetsi ndi kulumikizana.

Momwe Ma Flex Circuits Amapangidwira

Ma Flex Circuits amagwiritsidwa ntchito mu zamagetsi pazifukwa zosiyanasiyana. Monga tanenera kale, amachepetsa zolakwika pakupanga, amalimbana ndi chilengedwe, ndipo amatha kuthana ndi zamagetsi zovuta. Komabe, amathanso kuchepetsa ndalama zogwirira ntchito, kuchepetsa kulemera ndi zofunikira pa malo, komanso kuchepetsa malo olumikizirana omwe amawonjezera kukhazikika. Pazifukwa zonsezi, ma flex circuits ndi amodzi mwa magawo amagetsi omwe amafunidwa kwambiri mumakampani.

A dera losindikizidwa losinthasinthaIli ndi zigawo zitatu zazikulu: Makondakitala, Zomatira, ndi Zoteteza. Kutengera kapangidwe ka ma circuit osinthasintha, zinthu zitatuzi zimakonzedwa kuti magetsi aziyenda m'njira yomwe kasitomala akufuna, komanso kuti azigwirizana ndi zida zina zamagetsi. Zipangizo zomwe zimagwiritsidwa ntchito kwambiri pa guluu wa flex circuit ndi epoxy, acrylic, PSA, kapena nthawi zina palibe, pomwe zoteteza zomwe zimagwiritsidwa ntchito kwambiri zimaphatikizapo polyester ndi polyamide. Pakadali pano, timakonda kwambiri ma kondakitala omwe amagwiritsidwa ntchito m'ma circuit awa.

Ngakhale zipangizo zina monga siliva, kaboni, ndi aluminiyamu zingagwiritsidwe ntchito, zinthu zomwe zimagwiritsidwa ntchito kwambiri pa ma conductors ndi mkuwa. Copper foil imaonedwa kuti ndi chinthu chofunikira kwambiri popanga ma flex circuits, ndipo imapangidwa m'njira ziwiri: rolling annealing kapena electrolysis.

Momwe Ma Foil a Copper Amapangidwira

Chojambula cha mkuwa chopindidwaAmapangidwa kudzera m'mapepala otenthedwa a mkuwa, kuwachepetsa ndikupanga pamwamba pa mkuwa wosalala. Mapepala a mkuwa amakumana ndi kutentha kwambiri ndi kupsinjika kudzera mu njira iyi, zomwe zimapangitsa kuti pamwamba pake pakhale posalala komanso kusintha kusinthasintha, kupindika, komanso kuyendetsa bwino.

Pakadali pano,foi ya mkuwa ya electrolyticl imapangidwa pogwiritsa ntchito njira ya electrolysis. Yankho la mkuwa limapangidwa ndi sulfuric acid (ndi zowonjezera zina kutengera zomwe wopanga adafotokoza). Kenako selo la electrolytic limayendetsedwa kudzera mu yankho, zomwe zimapangitsa kuti ma ayoni a mkuwa agwedezeke ndikugwera pamwamba pa cathode. Zowonjezera zitha kuwonjezeredwa ku yankho lomwe lingasinthe mawonekedwe ake amkati komanso mawonekedwe ake.

Njira yopangira ma electroplating iyi imapitirira mpaka cathode drum itachotsedwa mu yankho. Drum imalamuliranso kuchuluka kwa foil yamkuwa, chifukwa ng'oma yozungulira mofulumira imakopanso kuuma kwambiri, zomwe zimapangitsa foilyo kukhala yolimba.

Mosasamala kanthu za njira, ma foil onse amkuwa opangidwa kuchokera ku njira zonsezi adzachiritsidwabe ndi chithandizo chomangirira, chithandizo choteteza kutentha, ndi chithandizo chokhazikika (choletsa okosijeni) pambuyo pake. Mankhwalawa amathandiza ma foil amkuwa kuti athe kumangirira bwino ku guluu, kukhala olimba kwambiri ku kutentha komwe kumakhudzidwa popanga dera lenileni losindikizidwa losinthasintha, ndikuletsa okosijeni ku foil yamkuwa.

Wozungulira Annealed vs Electrolytic

Popeza njira yopangira zojambula zamkuwa za zojambula zamkuwa zokulungidwa ndi zojambula zamkuwa za electrolytic ndi zosiyana, zilinso ndi ubwino ndi zovuta zosiyanasiyana.

Kusiyana kwakukulu pakati pa ma foil awiri amkuwa ndi malinga ndi kapangidwe kawo. Foil yamkuwa yopindidwa imakhala ndi kapangidwe kopingasa pa kutentha kwabwinobwino, komwe kenako kumasanduka kapangidwe ka kristalo wa lamellar ikakumana ndi kupanikizika kwakukulu ndi kutentha. Pakadali pano, foil yamkuwa ya electrolytic imasunga kapangidwe kake ka columnar pa kutentha kwabwinobwino komanso kupsinjika kwakukulu ndi kutentha.

Izi zimapangitsa kusiyana kwa mphamvu ya conductivity, ductility, kupinda, ndi mtengo wa mitundu yonse iwiri ya copper foil. Popeza rolled annealed copper foils nthawi zambiri zimakhala zosalala, zimakhala zoyenda bwino ndipo ndizoyenera kwambiri mawaya ang'onoang'ono. Zimakhalanso zoyenda bwino ndipo nthawi zambiri zimakhala zopinda bwino kuposa electrolytic copper foil.

Komabe, kuphweka kwa njira ya electrolysis kumatsimikizira kuti electrolytic copper foil ili ndi mtengo wotsika kuposa rolled annealed copper foils. Komabe, dziwani kuti zingakhale njira yabwino kwambiri pa mizere yaying'ono, ndipo zimakhala ndi kukana koipiraipira kuposa rolled annealed copper foils.

Pomaliza, ma foil a mkuwa a electrolytic ndi njira yabwino yotsika mtengo ngati ma conductor mu circuit yosindikizidwa yosinthasintha. Chifukwa cha kufunika kwa flex circuit m'mafakitale amagetsi ndi mafakitale ena, imapangitsanso ma foil a mkuwa a electrolytic kukhala chinthu chofunikira.