I. HDI board ndi chiyani?
HDI bolodi (High kachulukidwe Interconnector), ndiye kuti, mkulu-kachulukidwe interconnect bolodi, ndi ntchito yaying'ono-khungu anakwiriridwa luso luso, bolodi dera ndi ali ndi kachulukidwe mkulu wa kugawa mzere.HDI bolodi ali mzere wamkati ndi akunja mzere, ndiyeno ntchito pobowola, dzenje metallization ndi njira zina, kuti aliyense wosanjikiza wa mzere kugwirizana mkati.
II.kusiyana pakati pa HDI board ndi PCB wamba
HDI board nthawi zambiri imapangidwa pogwiritsa ntchito njira yodziunjikira, zigawo zambiri, zimakweza luso la gululo.Wamba HDI bolodi kwenikweni 1 nthawi laminated, apamwamba kalasi HDI ntchito 2 kapena kupitirira apo luso lamination, pamene ntchito mabowo zandanjikana, plating kudzaza mabowo, laser mwachindunji kukhomerera ndi zina zapamwamba PCB luso.Pamene kachulukidwe ka PCB kachulukidwe kupitirira bolodi la magawo asanu ndi atatu, mtengo wopangira ndi HDI udzakhala wotsika kuposa momwe zimakhalira zovuta kusindikiza.
Mphamvu zamagetsi ndi kulondola kwa ma siginecha a HDI board ndizokwera kuposa ma PCB achikhalidwe.Kuonjezera apo, matabwa a HDI ali ndi kusintha kwabwino kwa RFI, EMI, static discharge, conductivity thermal conductivity, etc. Ukadaulo wa High Density Integration (HDI) ukhoza kupangitsa kuti mapeto apangidwe akhale ochepa kwambiri, pamene akukumana ndi miyezo yapamwamba yamagetsi ndi mphamvu.
III.zida za board za HDI
Zida za HDI PCB zimayika zofunika zina zatsopano, kuphatikiza kukhazikika kwapang'onopang'ono, kusuntha kwa anti-static komanso kusamata.zida zodziwika bwino za HDI PCB ndi RCC (mkuwa wokutidwa ndi utomoni).pali mitundu itatu ya RCC, filimu ya polyimide metalized, filimu yoyera ya polyimide, ndi filimu ya polyimide.
Ubwino wa RCC ndi monga: makulidwe ang'onoang'ono, kulemera kochepa, kusinthasintha ndi kuyaka, kusagwirizana kwa makhalidwe ndi kukhazikika kwapamwamba kwambiri.M'kati HDI multilayer PCB, m'malo chikhalidwe chomangira pepala ndi zojambulazo mkuwa monga insulating sing'anga ndi conductive wosanjikiza, RCC akhoza kuponderezedwa ndi njira ochiritsira kupondereza ndi tchipisi.Njira zobowola zosagwiritsa ntchito makina monga laser ndiye zimagwiritsidwa ntchito popanga kulumikizana kwa micro-kupyolera-bowo.
RCC imayendetsa kuchitika ndi chitukuko cha zinthu za PCB kuchokera ku SMT (Surface Mount Technology) kupita ku CSP (Chip Level Packaging), kuchokera pakubowola makina mpaka kubowola laser, ndikulimbikitsa chitukuko ndi kupititsa patsogolo kwa PCB microvia, zonse zomwe zimakhala zotsogola za HDI PCB. za RCC.
Mu PCB yeniyeni mukupanga, posankha RCC, nthawi zambiri pali FR-4 muyezo Tg 140C, FR-4 mkulu Tg 170C ndi FR-4 ndi Rogers kuphatikiza laminate, amene amagwiritsidwa ntchito kwambiri masiku ano.Ndi chitukuko cha luso HDI, HDI PCB zipangizo ayenera kukwaniritsa zofunika kwambiri, kotero zinthu zazikulu za HDI PCB zipangizo ayenera kukhala
1. Kupanga ndi kugwiritsa ntchito zipangizo zosinthika popanda zomatira
2. Dielectric wosanjikiza makulidwe ang'onoang'ono ndi kupatuka pang'ono
3 .kukula kwa LPIC
4. Zing'onozing'ono ndi zazing'ono za dielectric constants
5. Zowonongeka zazing'ono ndi zazing'ono za dielectric
6. Kukhazikika kwakukulu kwa solder
7. Imagwirizana kwambiri ndi CTE (coefficient of thermal expansion)
IV.kugwiritsa ntchito ukadaulo wopanga ma board a HDI
Kuvuta kwa HDI PCB kupanga ndi yaying'ono popanga, kudzera muzitsulo ndi mizere yabwino.
1. Kupanga ma micro-through-hole
Kupanga ma micro-through-hole kwakhala vuto lalikulu la HDI PCB kupanga.Pali njira ziwiri zazikulu zobowolera.
a.Pobowola m'mabowo wamba, kubowola ndi makina nthawi zonse ndikwabwino kwambiri chifukwa chakuchita bwino komanso kutsika mtengo.Ndi chitukuko cha luso lamakina, kugwiritsa ntchito kwake mu micro-through-hole kukuchitikanso.
b.Pali mitundu iwiri ya kubowola laser: photothermal ablation ndi photochemical ablation.Yoyamba imatanthawuza njira yotenthetsera zida zogwirira ntchito kuti zisungunuke ndikuzisungunula kudzera mu dzenje lomwe limapangidwa pambuyo pa kuyamwa kwamphamvu kwa laser.Chotsatirachi chimatanthawuza zotsatira za photon zamphamvu kwambiri m'dera la UV ndi kutalika kwa laser kupitirira 400 nm.
Pali mitundu itatu ya machitidwe a laser omwe amagwiritsidwa ntchito pa mapanelo osinthika komanso okhazikika, omwe ndi laser excimer, UV laser kubowola, ndi CO2 laser.Ukadaulo wa laser sikuti ungoyenera kubowola, komanso kudula ndi kupanga.Ngakhale opanga ena amapanga HDI ndi laser, ndipo ngakhale zida zoboola laser ndizokwera mtengo, zimapereka zolondola kwambiri, njira zokhazikika komanso ukadaulo wotsimikiziridwa.Ubwino waukadaulo wa laser umapangitsa kuti ikhale njira yomwe imagwiritsidwa ntchito kwambiri popanga akhungu / kukwiriridwa kudzera m'mabowo.Masiku ano, 99% ya mabowo a HDI microvia amapezedwa ndi kubowola laser.
2. Kupyolera muzitsulo
Chovuta chachikulu pakubowola metallization ndizovuta kukwaniritsa plating yunifolomu.Pakuti zakuya dzenje plating luso la yaying'ono-kupyola mabowo, kuwonjezera ntchito plating njira ndi mkulu kubalalitsidwa luso, ndi plating njira pa plating chipangizo ayenera akweza mu nthawi, amene angathe kuchitidwa ndi amphamvu mawotchi yogwira mtima kapena kugwedera, akupanga yogwira mtima, ndi kupopera mbewu mankhwalawa yopingasa.Kuonjezera apo, chinyezi cha khoma lodutsa-bowo liyenera kuwonjezereka musanayambe plating.
Kuphatikiza pakusintha kwazinthu, njira zopangira zitsulo za HDI kudzera m'dzenje zawona kusintha kwaukadaulo waukulu: ukadaulo wowonjezera wamankhwala, ukadaulo wopukutira mwachindunji, ndi zina zambiri.
3. Mzere Wabwino
Kukhazikitsa mizere yabwino kumaphatikizapo kusamutsa zithunzi wamba komanso kujambula kwa laser molunjika.Kusamutsa zithunzi wamba ndi njira yofanana ndi ma etching wamba kuti apange mizere.
Kwa kujambula kwachindunji kwa laser, palibe filimu yojambula yomwe imafunikira, ndipo chithunzicho chimapangidwa mwachindunji pafilimu ya photosensitive ndi laser.Kuwala kwa mafunde a UV kumagwiritsidwa ntchito, ndikupangitsa njira zosungira madzi kuti zikwaniritse zofunikira pakuwongolera kwakukulu komanso ntchito yosavuta.Palibe filimu yojambula yomwe imafunika kuti mupewe zotsatira zosafunikira chifukwa cha zolakwika zamakanema, kulola kulumikizana mwachindunji ku CAD/CAM ndikufupikitsa nthawi yopanga, ndikupangitsa kuti ikhale yoyenera pakupanga kocheperako komanso kangapo.
Zhejiang NeoDen Technology Co., LTD., yomwe idakhazikitsidwa mu 2010, ndi katswiri wopanga makina osankhidwa a SMT ndi malo,reflow uvuni, makina osindikizira a stencil, mzere wopanga wa SMT ndi zinaMtengo wa magawo SMT.Tili ndi gulu lathu la R & D ndi fakitale yathu, kugwiritsa ntchito mwayi wathu olemera odziwa R&D, kupanga ophunzitsidwa bwino, adapambana mbiri yabwino kuchokera kwamakasitomala padziko lonse lapansi.
M'zaka khumizi, tidapanga NeoDen4, NeoDen IN6, NeoDen K1830, NeoDen FP2636 ndi zinthu zina za SMT, zomwe zidagulitsidwa padziko lonse lapansi.
Timakhulupirira kuti anthu abwino ndi othandizana nawo amapangitsa NeoDen kukhala kampani yabwino komanso kuti kudzipereka kwathu ku Innovation, Diversity and Sustainability kumawonetsetsa kuti makina a SMT azitha kupezeka kwa aliyense wokonda zosangalatsa kulikonse.
Nthawi yotumiza: Apr-21-2022