Ku hadal Xoog #Buga Baakadaha LED: Aqoonta Tignoolajiyada Baakadaha LED

Habka baakadaha ee nalalka LED-ku waa teknoolojiyad sare. Wareegtan, waxaa jira wax badan oo loogu yeero siraha ganacsiga. Sababtoo ah arrimahani waxay la xiriiraan nolosha iyo dhimashada shirkadda, waxyaabaha qaarkood lama soo bandhigo, oo ay ku jiraan hababka qaar ama hababka qaarkood ama hababka qaarkood ama farsamada. Waxyaabahani waxay si toos ah u go'aamiyaan in shirkadu yeelan karto tartan dhexe iyo in kale. Maanta, waxaan sii deyn doonaa aqoonta tignoolajiyada baakadaha ee warshadaha LED halkan. Waxaan u rajeyn inaan ku caawiid. 1. Dhaqaalaha 1. Wax soo saarka: A) Nadiifinta: Isticmaalka nadiifinta ultrasonic PCB ama xargaha LED, iyo qalajinta. b) Loading: Ka dib markii electrodes ee xudunta tube LED (goobo weyn) la ballaariyo, tube ballaadhiyey (warqad wareeg weyn) la saarayaa miiska crystal laf dhabarta, iyo xudunta tube waxaa loo isticmaalaa hoos microscope hoos microscope. Mid mid ayaa lagu rakibaa suufka u dhigma ee PCB ama brackets LED, ka dibna sinta ayaa la sameeyaa si loo daaweeyo xabagta qalinka ah. C) Alxanka cadaadiska leh: Isticmaal aluminium ama mashiinka alxanka siliga dahabka si aad ugu xidhid electrode-ka xudunta tuubada LED iyo hogaanka duritaanka hadda. LED-ka ayaa si toos ah loogu rakibay PCB-ga, waxaana guud ahaan la isticmaalaa alxanka aluminiumka. (Samee nal cad Top-LED waxay u baahan tahay mashiinka alxanka silig dahab ah) D) Baakadaha: Xabagta dhibicda, ilaali xudunta tube LED iyo silig alxan leh epoxy. Xabagta dhibcaha ee guddiga PCB waxay leedahay shuruudo adag oo ku saabsan qaabka qaabka kolloidalka ka dib daaweynta, taas oo si toos ah ula xiriirta iftiinka iftiinka dambe ee alaabta la dhammeeyey. Habkani waxa kale oo uu qaban doonaa hawsha budada fluorescence (LED iftiin cad). E) Alxanka: Haddii nalka dambe uu yahay SMD-LED ama LEDs kale oo koodhsan, ka hor inta aan la samayn nidaamka, LED-ku wuxuu u baahan yahay in lagu alxanayo guddiga PCB. F) Xuub goynta: Isticmaal caaryada feerka si aad u gooyso faafiyeyaasha kala duwan, xuubabka iftiimaya, iwm. Ee la'aanta. G) isu-ururinta: Gacanta ku rakib booska saxda ah ee agabyada kala duwan ee isha dambe ee iftiinka iyadoo loo eegayo shuruudaha sawirka. H) Tijaabi: Hubi in isha dambe ee iftiinka optoelectronics cabbirada iyo isku mid ahaanshaha iftiinka ka maqan yahay. 2. Baakadaha: Baakaynta alaabta la dhammeeyey sida loo baahan yahay iyo gelitaanka bakhaarka. Labaad, xiriirka baabuurta 1. Hawsha baakooyinka LED-ku waa in lagu xidho sunta rasaasta dibadda iyo electrode-ka chip-ka LED-ka, isla markaana la ilaaliyo chip-ka LED-ka, oo ay door ka ciyaaraan horumarinta waxtarka wax-soo-saarka iftiinka. Hababka muhiimka ah waa isu-ururinta, alxanka cadaadiska, baakadaha. 2. Foomka baakadaha LED foomka baakadaha LED waxaa la odhan karaa waa kala duwan. Inta badan waxay isticmaashaa cabbirka qaabka u dhigma, qiyaasaha ka hortagga kulaylka iyo saamaynta iftiinka iyadoo loo eegayo codsiyo kala duwan. Nalalka LED-yada waxaa loo kala saaraa qaab baakad ah oo ay ku jiraan LAMP-LED, TOP-LED, SIDE-LED, SMD-LED, High-Power-LD, iwm. 3. Habka baakadaha LED A) Baarista muraayadda Chip: 1. Haddii dusha maaddadu leedahay burbur farsamo iyo quful; 2. Haddii cabbirka jajabka iyo cabbirka korantada ay buuxiyaan shuruudaha nidaamka; 3. Haddii qaabka korantadu uu dhammaystiran yahay. B) Sababtoo ah chip LED ayaa weli ku jira kala fogaansho yar (qiyaastii 0.1mm) ka dib markii chip LED la xoqo, ma aha mid ku haboon hawlgalka post-process. Waxaan ballaarineynaa filimka jajabka koollada iyadoo la adeegsanayo mashiinka ballaarinta. Waa kala fogaanshaha chip-ka LED-ka oo fidsan ilaa 0.6mm. Waxa kale oo lagu balaadhin karaa gacanta, laakiin way fududahay in la keeno dhibaatooyin xun sida qashinka daadinta jajabka. C) Xabagta qalinka ah ama xabagta dahaadhka ah ee ku taal booska u dhigma ee xabagta dhibcaha ee booska u dhigma ee garabka LED. (Substrates-ka GAAS iyo SIC, nalka cas, nalka jaalaha ah, jaale-cagaaran jaale-cagaaran oo leh korantada dambe ee dhabarka, isticmaal xanjo qalin ah. Nalka buluuga ah iyo chip-ka cagaaran ee sapphire insulating base, isticmaal koolada dahaadhka ah si aad u hagaajiso jajabka. ) Adkaynta hawshu waxay ku jirtaa xakamaynta xadiga xabagta, waxaana jira shuruudo habaysan oo faahfaahsan oo ku saabsan dhererka dhererka kolloidka iyo barta barta barta barta barta barta barta barta. . Sababtoo ah xabagta qalinka ah iyo xabagta dahaadhka ahi waxay leeyihiin shuruudo adag kaydinta iyo isticmaalka, soo kicinta, kicinta, iyo isticmaalka wakhtiga xabagta qalinka ayaa dhamaantood ah arrimaha ay tahay in fiiro gaar ah loo yeesho. D) Si ka duwan diyaarinta iyo buuxinta dhibcaha, xabagta diyaarinta waa in lagu dhejiyo koolada qalinka ah ee LED-ka dambe ee mishiinka diyaarinta, ka dibna ku dheji LED oo leh xabag qalin ah oo ku yaal dhabarka ee garabka LED. Waxtarka diyaargarowga ayaa aad uga sarreeya kan xabagta dhibcaha, laakiin dhammaan alaabooyinka laguma dabaqi karo habka diyaarinta. E) Laf-dhabarta gacan-ku-samaynta ah Deji ballaarinta chip-ka LED-ka (diyaarinta ama jelka aan lacag-bixinta lahayn) ee miiska qodxaha leh. Qalabka LED-ka ayaa la dhigayaa hoosta qalabka. Marka la eego mikroskoob-ka, chip-ka LED waxa lagu mudday meesha u dhiganta iyada oo irbad hoosteeda mikroskoobku hoos imanayo. Marka la barbardhigo rarista tooska ah ee gacanta -cranked, waxay leedahay hal faa'iido marka la barbardhigo, taas oo ku habboon in la beddelo chips kala duwan wakhti kasta. Waxay ku habboon tahay alaabooyinka u baahan in lagu rakibo jajabyo kala duwan. f) Isku-darka tooska ah iyo isu-ururinta tooska ah ayaa dhab ahaantii lagu daraa laba tillaabo: xanjo lacag ah (insulating xanjo) oo ku taal xargaha LED-ka ee garabka LED-ka. Goobta, ka dibna dhig booska u dhigma. Ku rakibida tooska ah waxay inta badan yaqaanaan barnaamijyada hawlgalka qalabka marka loo eego tignoolajiyada, isla markaana hagaajiso saxnaanta iyo saxnaanta qalabka. Isku day inaad u isticmaasho afka dhuuqida alwaax xabagta doorashada nuugista si aad uga hortagto waxyeelada dusha sare ee chip LED, gaar ahaan orchid iyo chip cagaaran waa in la isticmaalo. Sababtoo ah afka birta ayaa xoqin doona lakabka fidsan ee hadda jira ee dusha sare ee chip. G) Ujeedada ka-saarista iyo isku-dheellitirka waa in la daweeyo xabagta qalinka ah, sintayntu waxay u baahan tahay la socoshada heerkulka si looga hortago fashilinta dufcaddii. Heerkulka cirridka qalinka ah ayaa guud ahaan lagu xakameynayaa 150 C, wakhtiga qulqulayana waa 2 saacadood. Marka loo eego xaaladda dhabta ah, waxaad la qabsan kartaa 170 C, 1 saac. Xabagta dahaarka guud ahaan waa 150 C, 1 saac. Foornada caagga lacagta ah waa in ay furto alaabta lagu beddelay sintering si waafaqsan shuruudaha nidaamka (ama 1 saac), waana inaadan furin markaad rabto. Foornadu waa in aanay isticmaalin ujeedooyin kale si looga hortago wasakhaynta. H) Ujeedada alxanka cadaadiska iyo alxanka waxay u horseedi doontaa korantada si ay u soo celiso chip LED si ay u dhamaystirto shaqada isku xirka gudaha iyo dibadda alaabta. Waxaa jira laba nooc oo ah habka alxanka cadaadiska LED: alxanka kubbadda dahabka ah iyo alxanka cadaadiska siliga aluminium. Sawirka dhinaca midig waa habka alxanka cadaadiska siliga aluminium. Marka hore taabo barta ugu horeysa ee LED-ga chip electrode, ka dib u soo jiid siliga aluminiumka garabka u dhigma, ka dibna riix barta labaad si aad u jebiso siliga aluminiumka. Habka alxanka kubbadda xariirta ee dahabka ayaa gubaya kubbad ka hor inta aan la cadaadin barta koowaad, inta kale ee habsocodkana waa la mid. Alxanka cadaadisku waa isku xirka furaha ee tignoolajiyada baakadaha LED. Habka ugu muhiimsan ee geeddi-socodku wuxuu u baahan yahay inuu kormeero qaabka xargaha dahabka ah ee alxanka (aluminium) qaabka xariirta ah ee qaansada, qaabka isku-dhafka welded. Cilmi-baaris qoto-dheer oo ku saabsan habka alxanka cadaadiska ayaa ku lug leh dhibaatooyin badan, sida dahabka (aluminium) qalabka xariirta, awoodda ultrasonic, cadaadiska alxanka cadaadiska, mindida gooynta (afka birta), kala-soocida (afka birta) dhaqdhaqaaqa dhaqdhaqaaqa, iwm. (Jaantuska hoose waa sawirada yar yar ee kala-goysyada alxanka oo ay cadaadinayaan labada mindi kala duwan ee isku mid ah shuruudaha isku mid ah. Labaduba waxay ku kala duwan yihiin qaab-dhismeedka micro, kaas oo saameeya tayada alaabta. ) Halkannaan mar daaramin. I) Baakadaha baakadaha dhibicda-glue-ka ee LED-ku inta badan waa saddex nooc: koollo yar, xidhidh, iyo cadaadiska caaryada. Asal ahaan, dhibka xakamaynta farshaxanku waa goobooyin, walxo badan, iyo dhibco madow. Naqshadeynta waxaa inta badan lagu xushay walxaha, iyo epoxy-ga isku dhafan iyo galka ayaa la doortay. ( LED-ga guud kama gudbi karo tijaabada gaaska cidhiidhiga ah Shuruudaha baakooyinka gacanta ayaa sarreeya (gaar ahaan LED iftiin cad). Dhibaatada ugu weyni waa xakamaynta qadarka buuxinta dhibcaha, sababtoo ah epoxy-ku wuu dhumucdi doonaa inta lagu jiro isticmaalka. Dhibicda buuxinta iftiinka cad ee LED-ka ayaa sidoo kale leh dhibaatada kala duwanaanshaha midabka ee ay keento sedimentation budada fluorescent. J) Baakadaha baakadaha weelka LAMP-LED waxay qaadanaysaa qaabka waraabka. Habka shaabadeynta waa in lagu duro epoxy dareere ah godka caaryada LED-ka, ka dibna la geliyo shabag-welded garabka LED. Ka dib marka lagu daro foornada si loo adkeeyo epoxy-ga. K) Baakadaha Mooming waxay gelinaysaa garabka LED-ka ee alxanka leh ee caaryada, labada lamaane ee sare iyo hoose ee caaryada waxaa loo isticmaalaa caaryada hawo-qaadista oo lagu shubo faakuumka. , Epoxy Geli dariiqa caagga ah ee meel kasta oo LED ah oo wax ka beddeleysa oo adkee. L) CICS iyo daawaynta ka dib iyo daawaynta waxa loola jeedaa daawaynta koobidda epoxy-ga. Guud ahaan, xaaladaha daawaynta epoxy waa 135 C, 1 saac. Baakadaha guuritaanka guud ahaan waa 150 C, 4 daqiiqo. M) Dib-u-kicinta waa la daaweeyaa si loo oggolaado in epoxy-ga si buuxda loo bogsiiyo, isla markaana, LED-ku wuu kulul yahay oo gaboobay. Nasinta daawaynta ayaa aad muhiim ugu ah hagaajinta xoojinta xabagta epoxy iyo bracket (PCB). Xaaladaha guud waa 120 C, 4 saacadood. N) Jeexitaanka iyo xaleefyada Maadaama LED-ku ku xidhan yahay wax soo saarka (hal ma aha), baakadaha LAMP LED waxay isticmaashaa gluten si ay u jarto garabka LED-ka. SMD-LED waxay ku taal guddiga PCB, kaas oo u baahan inuu noqdo mashiinka chip si uu u dhamaystiro shaqada kala-goynta. O) Tijaabi cabbirada optoelectronics ee LED oo tijaabi cabbirka qaabka. P) Baakadaha lagu tiriyo alaabta dhammaatay. Iftiinka aadka u sarreeya ee LED wuxuu u baahan yahay baakad ka hortag ah