Hasken haske mai zurfi na zurfiUV LEDAn ƙaddara shi ne ta hanyar ƙimar ƙididdigewa na waje, wanda ke da tasiri ta hanyar ƙididdigewa na ciki da haɓakar haɓakar haske. Tare da ci gaba da haɓakawa (> 80%) na ƙimar ƙididdiga na ciki na zurfin UV LED, haɓakar haɓakar hasken hasken UV LED mai zurfi ya zama maɓalli mai mahimmanci wanda ke iyakance haɓaka ingantaccen hasken hasken UV LED mai zurfi, da haɓakar haɓakar hasken haske. zurfin UV LED yana tasiri sosai ta hanyar fasahar marufi. Fasahar fakitin UV LED mai zurfi ta bambanta da fasahar fakitin LED na yanzu. White LED yafi kunshe da kayan halitta (epoxy resin, silica gel, da dai sauransu), amma saboda tsayin zurfin hasken UV da makamashi mai ƙarfi, kayan halitta za su fuskanci lalatawar UV a ƙarƙashin hasken UV mai zurfi na dogon lokaci, wanda ke tasiri sosai. ingancin haske da amincin zurfin UV LED. Saboda haka, zurfin UV LED marufi yana da mahimmanci musamman ga zaɓin kayan.

LED marufi kayan yafi hada haske emitting kayan, zafi dissipation substrate kayan da walda bonding kayan. Ana amfani da kayan da ke fitar da haske don cirewar luminescence guntu, ka'idar haske, kariyar injin, da dai sauransu; Ana amfani da ma'aunin zafi mai zafi don haɗin haɗin lantarki na guntu, zubar da zafi da goyon bayan inji; Ana amfani da kayan haɗin gwiwar walda don ƙarfafa guntu, haɗin ruwan tabarau, da sauransu.

1. abu mai fitar da haske:daHasken LEDTsarin emitting gabaɗaya yana ɗaukar kayan zahiri don gane fitowar haske da daidaitawa, yayin da yake kare guntu da layin kewaye. Saboda ƙarancin juriya na zafi da ƙarancin ƙarancin zafin jiki na kayan halitta, zafin da ke haifar da zurfafawar UV LED guntu zai haifar da zafin jiki na marufi na kwayoyin halitta ya tashi, kuma kayan aikin za su fuskanci lalatawar thermal, tsufa na thermal har ma da carbonization wanda ba zai iya jurewa ba. karkashin babban zafin jiki na dogon lokaci; Bugu da kari, a karkashin babban makamashi ultraviolet radiation, kwayoyin marufi Layer zai sami da ba za a iya jujjuya canje-canje kamar rage watsawa da microcracks. Tare da ci gaba da karuwa mai zurfi na makamashin UV, waɗannan matsalolin sun zama mafi tsanani, yana sa ya zama mai wuya ga kayan gargajiya na gargajiya don saduwa da buƙatun zurfin UV LED marufi. Gabaɗaya, ko da yake an ba da rahoton cewa wasu kayan aikin ƙwayoyin cuta za su iya jure wa hasken ultraviolet, saboda ƙarancin juriya na zafi da rashin iska na kayan halitta, har yanzu ana iyakance kayan aikin a cikin zurfin UV.LED marufi. Sabili da haka, masu bincike suna ƙoƙarin yin amfani da kayan da ba su dace ba kamar gilashin quartz da sapphire don kunshin zurfin UV LED.

2. Zafafa dissipation substrate kayan:a halin yanzu, LED zafi dissipation substrate kayan yafi hada da guduro, karfe da yumbu. Dukansu guduro da ƙananan ƙarfe sun ƙunshi Layer resin insulation Layer, wanda zai rage yawan zafin jiki na zafi mai zafi kuma ya shafi aikin zafi na substrate; Abubuwan yumbura sun haɗa da babban / low zazzabi co kora yumbu substrates (HTCC / ltcc), kauri film yumbu substrates (TPC), jan karfe-clad yumbu substrates (DBC) da electroplated yumbu substrates (DPC). Abubuwan da ake amfani da su na yumbu suna da fa'idodi da yawa, irin su ƙarfin injina, haɓaka mai kyau, haɓakar haɓakar thermal, kyakkyawan juriya mai zafi, ƙarancin haɓakar haɓakar thermal da sauransu. Ana amfani da su sosai a cikin marufi na na'urar wuta, musamman marufi na LED mai ƙarfi. Saboda ƙarancin haske na haske mai zurfi na UV LED, yawancin shigar da makamashin lantarki yana canzawa zuwa zafi. Don guje wa lalacewar babban zafin jiki ga guntu da zafi mai yawa ya haifar, zafin da guntu ya haifar yana buƙatar watsawa cikin yanayin da ke kewaye a cikin lokaci. Koyaya, zurfin UV LED galibi ya dogara ne akan ɓarkewar zafi azaman hanyar tafiyar zafi. Saboda haka, babban thermal conductivity yumbu substrate ne mai kyau zabi ga zafi dissipation substrate ga zurfin UV LED marufi.

3. kayan welding:zurfin UV LED waldi kayan sun hada da guntu m crystal kayan da substrate waldi kayan, wanda ake bi da bi don gane waldi tsakanin guntu, gilashin murfin (ruwan tabarau) da yumbu substrate. Don guntuwar guntu, ana amfani da hanyar eutectic Gold Tin don tabbatar da ƙarfin guntu. Don kwakwalwan kwamfuta a kwance da tsaye, ana iya amfani da manne na azurfa da manna wanda ba shi da gubar don kammala ƙarfafa guntu. Idan aka kwatanta da azurfa manne da gubar-free solder manna, da Gold Tin eutectic bonding ƙarfi ne high, da dubawa ingancin ne mai kyau, da thermal watsin na bonding Layer ne high, wanda rage LED thermal juriya. A gilashin murfin farantin ne welded bayan guntu solidification, don haka waldi zafin jiki yana iyakance da juriya zafin jiki na guntu solidification Layer, yafi ciki har da kai tsaye bonding da solder bonding. Haɗin kai kai tsaye baya buƙatar kayan haɗin kai na tsaka-tsaki. Ana amfani da babban zafin jiki da hanyar matsa lamba don kammala walda kai tsaye tsakanin farantin murfin gilashi da yumbura. Ƙwararren haɗin gwiwa yana da lebur kuma yana da ƙarfin ƙarfi, amma yana da manyan buƙatu don kayan aiki da sarrafa tsari; Solder bonding yana amfani da ƙaramin zafin jiki na tushen solder azaman matsakaicin Layer. Ƙarƙashin yanayin dumama da matsa lamba, haɗin gwiwa yana ƙare ta hanyar watsawa juna na atom tsakanin Layer solder da karfe Layer. Tsarin zafin jiki yana da ƙasa kuma aikin yana da sauƙi. A halin yanzu, ana amfani da haɗin gwiwar solder sau da yawa don gane abin dogara tsakanin farantin murfin gilashi da yumbura. Duk da haka, karfe yadudduka bukatar da za a shirya a saman gilashin murfin farantin da yumbu substrate a lokaci guda don saduwa da bukatun karfe waldi, da solder selection, solder shafi, solder ambaliya da waldi zafin jiki bukatar da za a yi la'akari a cikin bonding tsari. .

A cikin 'yan shekarun nan, masu bincike a gida da kuma kasashen waje sun gudanar da bincike mai zurfi a kan zurfin UV LED marufi kayan, wanda ya inganta ingantaccen inganci da amincin zurfin UV LED daga hangen nesa na kayan fasaha na marufi, kuma ya inganta haɓakar haɓakar UV mai zurfi. Fasahar LED.