Lankhulani ndi Mphamvu #LED Packaging Book: Kudziwa zaukadaulo wapaketsa wa LED

Kuyika kwa nyali za LED ndizinthu zapamwamba kwambiri. Mu bwaloli, pali zambiri zomwe zimatchedwa zinsinsi zamalonda. Chifukwa chakuti zinthuzi zimagwirizana ndi moyo ndi imfa ya kampani, zinthu zina sizidziwika, kuphatikizapo ndondomeko kapena njira zina kapena njira zina kapena luso. Zinthu izi zimatsimikizira mwachindunji ngati kampaniyo ingakhale ndi mpikisano wapakati. Lero, ndikumasula chidziwitso chaukadaulo wamapaketi amakampani a LED pano. Ndikufuna kukuthandizani. 1. Kupangitsa Kupanga: A) Kuyeretsa: Kugwiritsa ntchito akupanga kuyeretsa PCB kapena mabulaketi a LED, ndi kuyanika. b) Kutsegula: Pambuyo pa ma electrodes a LED chubu pachimake (bwalo lalikulu) kukulitsidwa, chubu dilated (chitsamba chachikulu chozungulira) amaikidwa pa msana crystal tebulo, ndipo pachimake chubu ntchito pansi pa maikulosikopu pansi pa microscope. Imodzi ndi imodzi imayikidwa pamapadi ofananira a PCB kapena mabatani a LED, kenako sintering imachitidwa kuti achiritse guluu wasiliva. C) kuwotcherera mwamphamvu: Gwiritsani ntchito makina owotcherera a aluminiyamu kapena waya wagolide kuti mulumikize ma elekitirodi ku chubu cha LED potsogolera mujakisoni wapano. LED imayikidwa mwachindunji pa PCB, ndipo makina owotcherera a aluminiyamu amagwiritsidwa ntchito. (Pangani kuwala koyera Pamwamba pa LED pamafunika makina owotcherera mawaya agolide) D) Kupaka: Ndi guluu, teteza pachimake cha chubu cha LED ndi waya wowotcherera wokhala ndi epoxy. Mfundo guluu pa bolodi PCB ali ndi zofunika okhwima pa mawonekedwe a colloidal mawonekedwe pambuyo kuchiritsa, amene mwachindunji zogwirizana ndi kuwala kwa backlight anamaliza mankhwala. Njirayi idzagwiranso ntchito ya ufa wa fluorescence (kuwala koyera LED). E) Kuwotcherera: Ngati nyali yakumbuyo ndi SMD-LED kapena ma LED ena otsekedwa, msonkhano usanachitike, LED iyenera kuwotcherera ku bolodi la PCB. F) Kudula nembanemba: Gwiritsani ntchito nkhungu yokhomerera kuti mudule ma diffuser osiyanasiyana, nembanemba yowunikira, ndi zina zambiri. Wa magwero a kuunika kumbuyo. G) msonkhano: Ikani pamanja malo olondola a zida zosiyanasiyana za gwero la backlight malinga ndi zofunikira pajambula. H) Kuyesa: Onani ngati mawonekedwe a backlight source optoelectronics ndi kufanana kwa kuwala kunja kwa kuwala. 2. Kupaka: Kulongedza zomwe zamalizidwa momwe zimafunikira ndikulowa m'nyumba yosungiramo zinthu. Chachiŵiri, mchitidwe wa ulesi wa 1. Ntchito yoyika ma LED ndikulumikiza chowongolera chakunja ndi elekitirodi ya chip cha LED, nthawi yomweyo kuteteza chip cha LED, ndikuchita nawo gawo pakuwongolera magwiridwe antchito amagetsi otulutsa kuwala. Njira zazikuluzikulu ndikusonkhanitsa, kuwotcherera kuthamanga, kulongedza. 2. Mapaketi amtundu wa LED mawonekedwe a ma CD a LED amatha kunenedwa kukhala osiyanasiyana. Imagwiritsa ntchito kukula kofananirako, zoyeserera zowononga kutentha ndi zotsatira zowala malinga ndi ntchito zosiyanasiyana. Ma LED amagawidwa m'mapaketi akuphatikiza LAMP-LED, TOP-LED, SIDE-LED, SMD-LED, High-Power-LD, etc. 3. Njira yakuyika kwa LED A) Kuyang'anira galasi loyang'ana chip: 1. Kaya zinthu pamwamba ndi kuwonongeka makina ndi lockhill; 2. Kaya kukula kwa chip ndi kukula kwa elekitirodi kumakwaniritsa zofunikira; 3. Kaya chitsanzo cha electrode chatha. B) Chifukwa chipangizo cha LED chikadali patali pang'ono (pafupifupi 0.1mm) pambuyo poti chip cha LED chikang'ambika, sichiyenera kugwira ntchito positi. Timakulitsa filimu ya chip chomatira pogwiritsa ntchito makina okulitsa. Ndilo danga la chipangizo cha LED chotambasula pafupifupi 0.6mm. Itha kukulitsidwanso pamanja, koma ndiyosavuta kuyambitsa zovuta zoyipa monga kugwetsa zinyalala za chip. C) Guluu wa siliva kapena zomatira zomatira pamalo ofananira ndi guluu wa mfundo pamalo ofananira ndi bulaketi ya LED. (Kwa GAAS ndi SIC conductive substrates, kuwala kofiira, kuwala kwachikasu, yellow -green chip yokhala ndi electrode yakumbuyo kumbuyo, gwiritsani ntchito chingamu chasiliva. Pa kuwala kwa buluu ndi chobiriwira cha LED chip cha safiro insulating base, gwiritsani ntchito zomatira zomatira kukonza chip. ) Kuvuta kwa ndondomekoyi kumayang'anira kuchuluka kwa zomatira, ndipo pali zofunikira zowonjezera ndondomeko pamtunda wa kutalika kwa colloid ndi nsonga ya mfundo ya mfundo ya mfundo ya mfundo. . Chifukwa guluu wasiliva ndi zomatira zomatira zimakhala ndi zofunika kwambiri posungira ndikugwiritsa ntchito, kudzuka, kugwedezeka, ndi kugwiritsa ntchito guluu wasiliva ndizo zonse zomwe ziyenera kutsatiridwa. D) Mosiyana ndi kukonzekera ndi kubwezeretsanso mfundo, guluuyo amakonzekera ndikugwiritsa ntchito guluu wasiliva ku electrode yakumbuyo ya LED ndi makina okonzekera, ndikuyikanso LED ndi guluu wasiliva kumbuyo kwa bulaketi ya LED. Kuchita bwino kwa kukonzekera ndikwapamwamba kwambiri kuposa mfundo ya glue, koma sizinthu zonse zomwe zimagwiritsidwa ntchito pokonzekera. E) Misana yopangidwa ndi manja Ikani kukulitsa kwa chipangizo cha LED (kukonzekera kapena gel osalipidwa) pazitsulo za tebulo laminga. Bokosi la LED limayikidwa pansi pazitsulo. Pansi pa maikulosikopu, chipangizo cha LED chimalasidwa pamalo omwewo ndi singano pansi pa microscope. Poyerekeza ndi zodziwikiratu Mumakonda wa dzanja cranked, ali ndi phindu poyerekeza izo, amene ndi yabwino kusintha tchipisi osiyana nthawi iliyonse. Ndizoyenera kuzinthu zomwe zimafunikira kukhazikitsa tchipisi tambirimbiri. f) Kutsegula ndi kusonkhana kwadzidzidzi kumaphatikizidwa ndi masitepe awiri: chingamu cha siliva (choteteza chingamu) pa bulaketi ya LED pa bulaketi ya LED. Malo, kenaka ikani pa malo ogwirizana nawo. Kuyika kwachiwongolero kumadziwika makamaka ndi mapulogalamu ogwiritsira ntchito zida malinga ndi ukadaulo, ndipo nthawi yomweyo sinthani kuwongolera ndi kuyika bwino kwa zida. Yesani kugwiritsa ntchito guluu matabwa kuyamwa pakamwa posankha kuyamwa kupewa kuwonongeka pamwamba chip LED, makamaka orchid ndi wobiriwira Chip ayenera kugwiritsidwa ntchito. Chifukwa pakamwa chitsulo kukanda kufalikira panopa wosanjikiza wa chip pamwamba. G) Cholinga cha sintering ndi sintering ndi kuchiritsa guluu siliva, sintering amafuna kuwunika kutentha kuteteza mtanda kulephera. Kutentha kwa sintering ya chingamu cha siliva nthawi zambiri kumayendetsedwa pa 150 C, ndipo nthawi ya sintering ndi maola awiri. Malinga ndi momwe zilili, mutha kusintha mpaka 170 C, ola limodzi. Zomatira zomatira nthawi zambiri zimakhala 150 C, ola limodzi. Ovuni yopangira mphira yasiliva iyenera kutsegula chinthu chomwe chimasinthidwa ndi sintering molingana ndi zofunikira (kapena ola limodzi), ndipo musatsegule mwakufuna. Uvuni wotenthetsera suyenera kugwiritsanso ntchito zina pofuna kupewa kuipitsa. H) Cholinga cha kuwotcherera kuthamanga ndi kuwotcherera kudzatsogolera electrode ku chipangizo cha LED kuti amalize ntchito yolumikizira mkati ndi kunja kwa chinthucho. Pali mitundu iwiri ya njira kuwotcherera kuthamanga kwa LED: kuwotcherera mpira wagolide ndi waya wa aluminiyamu kuwotcherera. Chithunzi chakumanja ndi njira yowotcherera waya wa aluminiyamu. Poyamba kanikizani mfundo yoyamba pa elekitirodi ya chip ya LED, kenako kukoka waya wa aluminiyamu ku bulaketi yofananira, kenako dinani mfundo yachiwiri kuti muthyole waya wa aluminiyamu. Njira yowotcherera mpira wa silika wagolide imawotcha mpira musanakanikize mfundo yoyamba, ndipo zina zonse ndizofanana. Kuwotcherera mwamphamvu ndiye ulalo wofunikira muukadaulo wapaketi wa LED. The ndondomeko yaikulu ya ndondomeko ayenera kuwunika mawonekedwe a kuwotcherera golide waya (zotayidwa) arched silika mawonekedwe, mawonekedwe a welded olowa. Kufufuza mozama pa njira yowotcherera kuthamanga kumaphatikizapo mavuto angapo, monga golide (aluminium) zida za silika, mphamvu ya akupanga, kuthamanga kwa kuwotcherera, mpeni wodula (m'kamwa mwachitsulo), kugawanika - mpeni (m'kamwa mwachitsulo) kuyenda mozungulira, ndi zina zotero. (Mthunzi pansipa ndi yaying'ono - zithunzi za kuwotcherera mfundo mbamuikha ndi awiri osiyana kugawanika - mpeni pansi zinthu zofanana. Awiriwa ali ndi kusiyana mu kamangidwe kakang'ono, komwe kumakhudza ubwino wa mankhwala. ) Sitilinso otopa kuno. I) Kupaka kwa madontho -glue ma CD a LED ndi mitundu itatu: guluu pang'ono, kusindikiza, komanso kuthamanga kwa nkhungu. Kwenikweni, vuto la kuwongolera luso ndi thovu, zida zingapo, ndi mawanga akuda. Mapangidwewo amasankhidwa makamaka ndi zinthu, ndipo epoxy yophatikizidwa ndi bracket imasankhidwa. (General LED sangadutse mayeso olimba a gasi.) Monga momwe tawonetsera pa chithunzi chomwe chili kumanja, Top-LED ndi SIDE-LD ikugwiritsidwa ntchito pazitsulo zomatira mfundo. Zofunikira pakuyika tepi pamanja ndizokwera (makamaka kuwala koyera kwa LED). Chovuta chachikulu ndikuwongolera kuchuluka kwa mfundo zowonjezera, chifukwa epoxy imakula pakagwiritsidwa ntchito. Kubwezeretsanso mfundo ya kuwala koyera kwa LED kumakhalanso ndi vuto la kusiyana kwa mtundu komwe kumachitika chifukwa cha fulorosenti ya ufa wa sedimentation. J) Kuyika kwa zonyamula zotsuka LAMP-LED kutengera njira yothirira. The ndondomeko kusindikiza ndi kubaya madzi epoxy mu LED akamaumba nkhungu patsekeke, ndiyeno amaika lattice -welded bulaketi LED. Pambuyo powonjezera uvuni kulimbitsa epoxy. K) Kuyika kwamong'ono kumayika chotchingira cha LED mu nkhungu, ndipo magulu apamwamba ndi apansi a nkhungu amagwiritsidwa ntchito ndi ma hydraulic mold ndikupopera vacuum. , Epoxy Lowani njira ya rabala mu gawo lililonse la LED ndikulimbitsira. L) CICS ndi post-kuchiritsa ndi kuchiritsa amatanthauza kuchiritsa kwa encapsulation ya epoxy. Nthawi zambiri, machiritso a epoxy ndi 135 C, ola limodzi. Zonyamula zosuntha nthawi zambiri zimakhala 150 C, mphindi 4. M) Kubwezeretsanso kumachiritsidwa kuti alole epoxy kuchiritsidwa kwathunthu, ndipo nthawi yomweyo, LED imakhala yotentha komanso yokalamba. Kuchiritsa kopumula ndikofunikira kwambiri pakuwongolera kulimba kwa epoxy ndi bracket (PCB). Nthawi zambiri ndi 120 C, maola 4. N) Jacking ndi magawo Popeza LED imagwirizanitsidwa ndi kupanga (osati imodzi), LAMP phukusi la LED limagwiritsa ntchito gluteni kuti lidule bulaketi ya LED. SMD-LED ili pa bolodi la PCB, lomwe liyenera kukhala makina a chip kuti amalize ntchito yolekanitsa. O) Yesani magawo a optoelectronics a LED ndikuyesa kukula kwa mawonekedwe. P) Kupaka kuti muwerenge zomwe zamalizidwa. Kuwala kowala kwambiri kwa LED kumafunikira anti-static ma CD