Pakuboola PCB yamakina, kuboola kamodzi kokha kuyenera kulowa m'zinthu zingapo nthawi zonse, kuphatikizapo zojambula zamkuwa, utomoni, ulusi wagalasi ndi zodzaza ntchito. Ngakhale kuti njirayi ingawoneke ngati ikuphatikizapo kuboola mobwerezabwereza, m'mphepete mwa kuboola kakang'ono nthawi zonse mumakhala ndi kuwonongeka kwakukulu chifukwa cha tinthu tolimba, kutentha kwa kukangana ndi katundu wamakina wozungulira.
Pamene kupanga ma PCB kukupitilira kukula kufika pa kuchuluka kwa ma circuit, kuchuluka kwa zigawo ndi ma geometries abwino, mainchesi a mabowo obowoledwa akuchepa kwambiri. Pakadali pano, ma laminates ovuta kugwiritsa ntchito, kuphatikizapo zipangizo za Tg zambiri komanso zodzaza kwambiri, akugwiritsidwa ntchito kwambiri. Makamaka pamene mainchesi a micro-drill akutsika pansi pa 0.1 mm, zofunikira kwambiri zimayikidwa pa mphamvu ya drill-point, kukana kuwonongeka kwamakono, kuchotsa chips ndi kukhazikika kwa drill.
Kuwonongeka kwakukulu kukachitika, kugwedezekako kumapitirira nthawi yochepa ya zida. Kungayambitsenso kukhwima kwa mabowo, ma burrs olowera ndi otuluka, kutsika kwa kukula kwa mabowo komanso kusweka kwa bowo.
Chifukwa chake, kukonza kukana kwa ma micro-drill ndikuchepetsa kukangana kudzera mu zokutira pamwamba kukukhala njira yofunika kwambiri yowonjezerera ubwino wa PCB drill.
1. Kuwonongeka kwa Micro-Drill Kumakhudza Zambiri Kuposa Moyo wa Zida
Ma PCB laminate nthawi zambiri amapangidwa ndi zojambula zamkuwa, utomoni, ulusi wagalasi ndi zodzaza zosiyanasiyana zogwira ntchito. Pakuboola mwachangu, choboola chaching'ono chiyenera kudula mobwerezabwereza zinthu zomwe zimakhala ndi mphamvu zosiyanasiyana zamakanika ndi kutentha. Ulusi wagalasi ndi zodzaza zina zolimba nthawi zonse zimayambitsa kuwonongeka kwakukulu pamalo oboola ndi m'mphepete, pomwe utomoni ukhoza kumamatira pamalo oboola kapena zitoliro za helical chifukwa cha kukangana ndi kutentha kodula, zomwe zimakhudza kwambiri kutuluka kwa chip pambuyo pake.
Pamene kuchuluka kwa mabowo obowoledwa kukuwonjezeka, m'mphepete mwa kudula kwa micro-drill pang'onopang'ono kumakhala kosalala. Kukankhira kwa axial komwe kumafunika kuti kulowe mu laminate kumawonjezeka moyenerera, pomwe kukangana ndi kupanga kutentha kumatha kukulirakulira. Pansi pa izi, ntchito yodula pa foil yamkuwa, utomoni ndi ulusi wagalasi imachepa pang'onopang'ono, zomwe zimapangitsa kuti kupsinjika, kukwapula kapena kung'ambika m'malo mochotsa zinthu zoyera. Izi zitha kuwonjezera kukhwima kwa mabowo, kupanga ma burrs olowera ndi otuluka komanso kuchepetsa kukhazikika kwa maenje. Pa ma PCB opyapyala ndi ma board a high-density interconnect, kapena HDI, zolakwika izi zitha kuwonjezeranso kuvutika kwa metallization ya mabowo ndi kuwongolera khalidwe.
Kuphatikiza apo, kukula kwa micro-drill kukakhala kochepa, mphamvu ya chip-accommodation ya helical flutes yake imachepetsa kwambiri. Pamene tchipisi tasonkhana kapena utomoni ukugwira ntchito pamalo obowolera, m'mphepete mwa kudula kapena tchipisi ta chip, kukana kubowolera kumatha kusinthasintha kwambiri. Mukaphatikizana ndi kuwonongeka kwa micro-drill, spindle runout kapena magawo osayenera abowolera, kupindika ndi kugwedezeka kwa katundu komwe kumagwira ntchito pa micro-drill kumatha kuwonjezeka, motero kumabweretsa chiopsezo cha kubowolera ndi kusweka.
2. Kodi Zophimba za Micro-Drill Zimathandiza Bwanji Kuboola PCB?
Zophimba zolimba monga ta-C, AlTiN, AlCrN ndi CrN zitha kuyikidwa pa ma PCB micro-drills. Pakati pa zinthuzi, tetrahedral amorphous carbon, kapena ta-C, imaphatikiza kuuma kwakukulu ndi coefficient yochepa ya kukangana, zomwe zimathandiza kuchepetsa kuwonongeka kwa m'mphepete ndi kukana kubowola pamene ikuteteza malo obowola ndi m'mphepete mwa kudula. Mu ntchito zenizeni, zophimba zazing'ono zobowola zimathandizira magwiridwe antchito a kubowola makamaka pochedwetsa kuwonongeka kwa m'mphepete mwa kudula, kuchepetsa kukangana ndi kukana kutuluka kwa chip-chip, komanso kukhazikika kwa mabowo.
Zophimba zolimba kwambiri zimachepetsa kukhudzana mwachindunji pakati pa ulusi wagalasi, zodzaza zolimba ndi gawo lopangidwa ndi simenti la carbide. Izi zimathandiza kuchepetsa kuwonongeka kwa malo obowolera, m'mphepete mwa zodula zoyambira ndi m'mphepete, zomwe zimathandiza kuti chobowolera chaching'ono chikhale chokhazikika bwino pa nthawi zambiri zobowolera.
Zophimba zopapatiza zochepa zimathandiza kuchepetsa kukangana pakati pa chobowola chaching'ono, PCB laminate ndi ma chips opangidwa. Zingachepetsenso chizolowezi cha ma chips ndi resin kuti zigwirizane ndi malo obowola ndi ma helical flutes, zomwe zimapangitsa kuti pamwamba pakhale malo abwino kwambiri otulutsira ma chips.
Pamene kuchuluka kwa kutha kwa m'mphepete mwa kudula kwalamulidwa bwino, kusintha kwa momwe zinthu zilili pa nthawi zosiyanasiyana zogwirira ntchito kumatha kuchepetsedwa. Izi zimathandiza kukonza ubwino wa khoma la dzenje komanso kukula kwa dzenje pamene zikuchepetsa mapangidwe a ma burrs olowera ndi otuluka.
Komabe, zokutira sizingathe kuchotsa kwathunthu kusweka kwa bowola. Kulephera kwa bowola kumakhudzananso ndi kukula kwa bowola laling'ono, mtundu wa laminate, kutalika kwa stack, momwe spindle imagwirira ntchito komanso magawo a kubowola. Mwa kuchepetsa kusweka, kuchepetsa kukangana ndikuwongolera kutuluka kwa chip, zokutira zokonzedwa bwino zitha kuchepetsa katundu wodula wosazolowereka ndikuchepetsa chiopsezo cha kusweka kwa bowola.
3. Ma Micro-Drill Ang'onoang'ono Amafuna Njira Zophikira Zolondola Kwambiri
Poyerekeza ndi zida zodulira zachikhalidwe, ma PCB micro-drill ali ndi miyeso yaying'ono kwambiri komanso malo obowolera osavuta komanso amakono. Chifukwa chake, zokutira za micro-drill sizingoyang'ana kwambiri pakukwaniritsa kuuma kwakukulu. Kukhuthala kwa filimu, mtundu wa pamwamba ndi kumamatira kwa substrate ziyeneranso kulamulidwa mosamala.
Ngati chophimbacho ndi chopyapyala kwambiri, chitetezo chake ku kuwonongeka kwa thovu sichingakhale chokwanira. Ngati chili chokhuthala kwambiri, chingasinthe mawonekedwe a m'mphepete mwa choduliracho ndi kuyambitsa kuzungulira kapena kupangika kwa m'mphepete. M'mimba mwake wa micro-booler ukakhala wochepa, ndiye kuti kudula kwake kumakhala kosavuta kukhudza makulidwe a chophimbacho.
Kuyika kwa arc ya cathodic yachikhalidwe kungapangitsenso tinthu tating'onoting'ono. Ngati tinthu tating'onoting'ono timeneti taikidwa pafupi ndi malo obowolera, m'mphepete mwachitsulo kapena m'mphepete mwachitsulo, titha kuwonjezera kuuma kwa pamwamba pachitsulo ndikuwononga kuuma kwa m'mphepete mwachitsulo. Pa ma drill ang'onoang'ono opyapyala kwambiri okhala ndi mainchesi osakwana 0.1 mm, tinthu tating'onoting'ono tofanana kukula kwake titha kukhala ndi zotsatirapo zazikulu pa mawonekedwe odulira.
Ma micro-drill alinso ndi zinthu zovuta zamitundu itatu, kuphatikizapo malo obowolera, m'mphepete mwa kudula, m'mphepete ndi zitoliro za helical chip. Panthawi yopaka utoto, kapangidwe ka zida, kuchuluka kwa katundu ndi kayendedwe ka substrate ziyenera kukonzedwa bwino kuti zikwaniritse bwino kuphimba utoto m'malo osiyanasiyana ogwira ntchito komanso kusunga kusinthasintha pakati pa ma micro-drill osiyanasiyana.
4. Zhenhua Vacuum PCB Micro-Drill Coating Solution — FMA0605 Hard-Coating System
Kuti akwaniritse zofunikira pakuphimba ndi kuphimba pamwamba pa zinthu zazing'ono komanso zida zina zodulira molondola, Zhenhua Vacuum FMA0605 Hard-Coating System imagwiritsa ntchito ukadaulo wamagetsi wosefedwa wa cathodic arc. Ukadaulo uwu umasefa macroparticles omwe amapangidwa panthawi yoyika cathodic arc, zomwe zimathandiza kuti zokutira za ta-C zikwaniritse bwino komanso bwino ntchito yopaka.
Zophimba za ta-C zomwe zimayikidwa ndi dongosololi zimatha kukhala zolimba mpaka 63 GPa pomwe zimakhala ndi mawonekedwe otsika a friction. Kulimba kwambiri kumathandiza kupewa kuwonongeka koopsa komwe kumachitika chifukwa cha ulusi wagalasi ndi zodzaza zolimba mu PCB laminates. Kuchepa kwa friction kumathandiza kuchepetsa kukana pakati pa micro-drill, laminate ndi chips, pomwe kumachepetsa kumatirira kwa chips ndikupanga malo abwino kwambiri oti mabowo azibowoledwa mosalekeza komanso kuchotsa chips.
Kuwonjezera pa zophimba za ta-C, makinawa amathanso kuyika zophimba zolimba komanso zolimba kwambiri monga AlTiN, AlCrN, TiCrAlN, TiAlSiN ndi CrN. Zophimbazi zagwiritsidwa ntchito pa nkhungu, zida zodulira, zibowo, zida zamagalimoto, ma pistoni ndi zinthu zina zosatha.
5. Mapeto
Pamene kuboola PCB kukupitilirabe kupita patsogolo mpaka kukula kwa mabowo ang'onoang'ono komanso kulondola kwambiri kwa makina, kufunika kwa zokutira zazing'ono sikungokhala kokha pakuwonjezera moyo wa zida. Chofunika kwambiri, zokutira zimathandiza kusunga mawonekedwe apamwamba, kukonza ubwino wa mabowo ndikuwonjezera kukhazikika pakuboola kosalekeza. Yankho logwira ntchito lophimba liyenera kuganizira mokwanira kuuma kwa chophimba, magwiridwe antchito okangana, makulidwe a filimu, ubwino wa pamwamba ndi kumamatira kwa chophimba, komanso kufananizidwa ndi zomwe zimayikidwa ndi micro-bowola, mtundu wa PCB laminate ndi momwe kuboola kulili kwenikweni.
Kudzera muukadaulo wamagetsi wosefedwa wa cathodic arc, Zhenhua Vacuum FMA0605 Hard-Coating System imachepetsa zotsatira zoyipa za macroparticles opangidwa ndi arc m'mphepete mwa kudula kwabwino kwambiri. Zophimba za ta-C zolimba kwambiri komanso zopapatiza pang'ono zimathandiza kuchedwetsa kuwonongeka kwa ma micro-drill, kukhazikika kwa mabowo a PCB ndikuchepetsa chiopsezo cha kusweka kwa bowolo, kupereka chithandizo chodalirika cha zida zopangira PCB micro-drill coating process komanso kupanga kwakukulu.
-Nkhaniyi yasindikizidwa ndiwopanga zida zophikira vacuumZhenhua Vacuum
Nthawi yotumizira: Julayi-25-2026