Gasar PCB Manufacturer

Pcb Multi-Layer Circuit Board masana'antun suna da ƙwararrun ƙwararrun bincike da ƙungiyar haɓakawa, ƙwararrun fasahar aiwatar da masana'antu, kuma suna da ingantattun wuraren samarwa, wuraren gwaji da dakunan gwaje-gwaje na zahiri da sinadarai tare da kowane nau'in ayyuka. FR-4 da muke magana akai shine nau'in takarda da aka fi amfani dashi wajen samar da allunan da'irar pcb multilayer.
Sosai na sama, wanda aka fi amfani da shi da laminate na jan karfe da prepreg a duniya shine NEMA mai suna FR4
kusan kashi 14% na jimillar fitarwar allon FR-4 mai gefe ɗaya ne ko mai gefe biyu, sauran kuma kusan kashi 40% na allon multilayer na bakin ciki FR -4 laminates ne. Ƙarshen tarihin tarihin FR-4's rinjaye na kasuwa shine yafi saboda gaskiyar cewa ya zarce laminates na tushen takarda a cikin kaddarorin thermal, ingantattun danshi da juriya na sinadarai, mafi girman ƙarfin sassauƙa da ƙarfin kwasfa mai kyau. . FR4 shine laminate na farko wanda za'a iya amfani dashi don bazara-ta hanyar-rami bangarori biyu masu gefe saboda juriya ga danshi da exfoliation na sinadarai. Bugu da ƙari, ƙimar FR-4 don kuɗi ba ta da ƙarfi. A cikin shekarun da suka gabata, masana'antar ta ɗauka cewa FR-4 za ta ba da damar sabbin kayan laminate da aka haɓaka waɗanda suka dace da babban taro. Koyaya, saboda ƙarancin farashi, masu zanen allon kewayawa suna neman hanyoyin amfani da FR-4 a cikin manyan taro.
Abubuwan ƙarfafawa da aka yi amfani da su don laminates na FR4 shine gilashin lantarki Wib (E-glass). Saboda kyawawan kaddarorin injinsa na musamman, kyawawan kaddarorin wutar lantarki masu gamsarwa, juriya mai zafi, juriya da danshi da juriya na acid, E-type gilashin fiber zane ya zama kayan ƙarfafa wutar lantarki mai kyau sosai. Duk yadudduka da aka yi amfani da su a cikin FR4 suna da tsarin shimfidar wuri mai santsi bisa ga hanyar saƙa kwando, kuma an lulluɓe saman da fenti don ƙarfafa haɗin gwiwa tsakanin filaye na gilashi da resins na halitta. A lokacin aikin saƙa na raguwa, an ƙayyade kauri da adadin gilashin gilashi. An ƙayyade ma'auni na asali da kauri na masana'anta da aka gama, kauri na gilashin fiber gilashin da aka yi amfani da shi don allon bugawa shine mafi yawa daga 6 zuwa 172m, kuma prepreg wanda ya ƙunshi gilashin fiber gilashi yana ƙayyade kauri na laminate. Gabaɗaya, kauri na laminate FR4 shine bam ~ 1L57mm (ƙara a tazara na 25pm), kuma ƙayyadadden kauri ya dogara da nau'in zanen fiber gilashi da abun ciki na resin halitta na takardar sinadarai da aka yi amfani da shi. Ayyukan laminate da farko an ƙaddara ta tsarin, tun da mai siye ya yi buƙatu mai kyau, kuma don kauri da aka ba da, akwai nau'i-nau'i masu yawa waɗanda zasu iya saduwa da abubuwan da aka ba su. Bambance-bambance a cikin abun ciki na resin na halitta (wani lokaci ana kiranta rabon itace zuwa zanen fiberglass) zai shafi kaddarorin laminate.
Gaba ɗaya tsarin epoxy na halitta guduro ya ƙunshi daban-daban masu aiki epoxy mahadi, da kuma daidaitaccen bifunctional epoxy halitta guduro (kowane daga cikin aka gyara) ana samu ta hanyar kira na guda epoxy rukuni da tetrabromofluorescein A (TBPA). Akwai mahadi guda biyu masu amsawa na epoxy oxygen akan sarkar polymer), kamar yadda aka nuna a hoto 4.6. Tsawon sarkar tsakanin ƙungiyoyi yana ƙayyade tsattsauran ra'ayi na laminate da kaddarorin thermal na laminate. A lokacin aikin warkarwa, ƙungiyoyin oxygen na epoxy suna amsawa tare da wakili mai warkarwa don fara matrix polymer mai girma uku. A matsayin wani ɓangare na sarkar polymer, ana ƙara bromine Wakamura zuwa TBBPA, wanda ke sa TBPA tana da kaddarorin kashe wuta na musamman. A cewar Underwriters Laboratories
(Underwriters Laboratory) gwajin UL94, don yin laminate da aka gama tare da matakin V0 na jinkirin harshen wuta, ya zama dole don ƙara bromine tsakanin 16% da 21% ta nauyi.
The pcb kewaye hukumar kayayyakin a pcb multilayer kewaye hukumar masana'antun rufe 2-28 Layer allon, HDI allon, high TG lokacin farin ciki allon, taushi da kuma wuya bonding allon, high mita allon, gauraye kafofin watsa labarai laminates, makafi binne ta allo, karfe substrates kuma babu. Halogen farantin. Fa'idar da'irar bas ta Shenzhen ta ta'allaka ne a cikin nau'ikan magudanar matsakaita-zuwa-ƙarshe, kuma farashin har yanzu yana da araha sosai, kuma ya riga ya kasance cikin babban matsayi a masana'antar pcb.