LED ntau lawm technology thiab ntim tshuab

Ua ntej, cov txheej txheem ntau lawm

1. Txheej txheem:

a) Kev Tu: Siv ultrasonic tu PCB lossis LED txhawb nqa, thiab qhuav.

b) Mounting: Tom qab lub hauv qab electrode ntawm LED tube tub ntxhais (loj disc) yog npaj nrog nyiaj kua nplaum, cov tub ntxhais nthuav dav (loj disc) tau muab tso rau ntawm lub rooj pos, thiab lub raj tub ntxhais tau teeb tsa ib los ntawm ib qho ntawm qhov sib thooj. welding ncoo ntawm PCB los yog LED bracket nyob rau hauv lub microscope nrog pos cwj mem, thiab ces cov nyiaj kua nplaum yog solidified los ntawm sintering.

c) Siab vuam: Cov electrode txuas nrog LED tube tub ntxhais nrog lub txhuas hlau los yog kub hlau vuam tshuab los ua cov hlau lead rau kev txhaj tshuaj tam sim no. LED ncaj qha ntsia rau ntawm PCB, feem ntau siv txhuas hlau vuam tshuab. (Kev tsim cov dawb TOP-LED xav tau ib lub xov hlau kub)

d) Ntim: Los ntawm dispensing, LED tube tub ntxhais thiab vuam hlau yog tiv thaiv nrog epoxy. Dispensing kua nplaum rau ntawm PCB pawg thawj coj saib muaj cov kev cai nruj rau cov duab ntawm cov gel tom qab kho, uas yog ncaj qha ntsig txog qhov ci ntawm cov khoom backlight. Cov txheej txheem no tseem yuav ua txoj haujlwm ntawm kev pom phosphors (dawb coj).

e) Vuam: Yog tias lub teeb rov qab yog SMD-LED lossis lwm cov khoom ntim, LED yuav tsum tau welded rau PCB board ua ntej txheej txheem sib dhos.

f) Zaj duab xis txiav: Siv lub punch los txiav cov yeeb yaj kiab sib txawv thiab cov yeeb yaj kiab uas xav tau los ntawm qhov chaw teeb pom kev zoo.

g) Kev sib dhos: Raws li qhov yuav tsum tau ua ntawm daim duab kos, ntau yam ntaub ntawv ntawm lub teeb nraub qaum yog manually ntsia rau hauv txoj haujlwm raug.

h) Kuaj: xyuas seb cov duab hluav taws xob tsis zoo ntawm lub teeb pom kev zoo thiab qhov sib xws ntawm lub teeb pom kev zoo.

Ntim: Cov khoom tiav yog ntim thiab khaws cia raws li qhov xav tau.

Thib ob, txheej txheem ntim khoom

1. LED ntim cov dej num

Cov hlau lead sab nraud txuas nrog lub electrode ntawm LED nti, thaum tiv thaiv LED nti, thiab txhim kho kev ua haujlwm ntawm lub teeb rho tawm. Cov txheej txheem tseem ceeb yog mounting, siab vuam thiab ntim.

2. LED pob daim ntawv

LED ntim cov ntaub ntawv tuaj yeem hais tau ntau yam, feem ntau raws li cov ntawv thov sib txawv siv cov duab sib thooj, qhov ntsuas kub dissipation countermeasures thiab lub teeb nyhuv. LEDs yog cais raws li Teeb-LED, TOP-LED, Sab-LED, SMD-LED, High-Power-LED thiab lwm yam.

3. LED ntim txheej txheem ntws

4. Pob txheej txheem specification

1. Chip tshuaj xyuas

Microscopy: Seb puas muaj kev puas tsuaj thiab pitting ntawm qhov chaw ntawm cov khoom (lockhill)

Seb lub nti loj thiab electrode loj raws li cov txheej txheem yuav tsum tau ua

Seb tus qauv electrode puas tiav

2. Kev nthuav dav

Txij li thaum LED nti tseem tau teem kom zoo tom qab slicing, qhov sib nrug me me (txog {{0}}.1mm), uas tsis haum rau kev ua haujlwm ntawm cov txheej txheem tom qab. Peb siv cov khoom sib kis los nthuav cov zaj duab xis ntawm cov khoom sib txuas, thiab qhov sib nrug ntawm LED nti yog ncav cuag li 0.6 hli. Kev nthuav qhia phau ntawv kuj tseem siv tau, tab sis nws yooj yim los ua teeb meem tsis zoo xws li nti poob pov tseg.

3. Dispense kua nplaum

Muab cov kua nplaum nyiaj los yog cov nplaum nplaum nplaum rau ntawm qhov sib thooj ntawm LED bracket. (Rau GaAs, SiC conductive substrates, lub teeb liab, lub teeb daj, daj-ntsuab chips nrog rov qab electrodes, nyiaj kua nplaum yog siv. Rau xiav thiab ntsuab LED chips ntawm sapphire insulating substrate, insulating kua nplaum yog siv los kho cov nti.)

Qhov nyuaj ntawm cov txheej txheem yog kev tswj cov nyiaj faib tawm, thiab muaj cov txheej txheem ntxaws ntxaws hauv qhov siab colloidal thiab dispensing txoj haujlwm.

Txij li cov kua nplaum nyiaj thiab cov kua nplaum insulating muaj cov cai nruj heev hauv kev khaws cia thiab siv, kev tsim, nplawm thiab siv sijhawm ntawm cov kua nplaum nyiaj yog txhua yam uas yuav tsum tau them nyiaj rau hauv cov txheej txheem.

4. Npaj kua nplaum

Nyob rau hauv sib piv rau dispensing, cov kua nplaum npaj yog siv cov kua nplaum npaj tshuab ua ntej siv cov nyiaj kua nplaum rau lub LED rov qab electrode, thiab tom qab ntawd nruab lub LED nrog nyiaj kua nplaum rau sab nraum qab ntawm lub LED tuav. Qhov ua tau zoo ntawm kev npaj kua nplaum yog ntau dua li ntawm kev xa tawm, tab sis tsis yog txhua yam khoom tsim nyog rau txheej txheem kua nplaum.

5. tes tho

Lub nti LED nthuav dav (nrog lossis tsis muaj kua nplaum) tau muab tso rau ntawm lub jig ntawm lub rooj nqaj qaum, LED bracket yog muab tso rau hauv lub jig, thiab LED nti yog stabbed mus rau qhov sib thooj ntawm ib tug los ntawm ib tug nrog ib rab koob nyob rau hauv lub microscope. Ib qho txiaj ntsig ntawm phau ntawv hlais thiab tsis siv neeg mounting yog qhov yooj yim los hloov cov chips sib txawv txhua lub sijhawm, thiab nws tsim nyog rau cov khoom uas yuav tsum tau nruab ntau lub chips.

6. Tsis siv neeg khib mounting

Tsis siv neeg mounting yog ua ke ntawm cov kua nplaum (xa tawm) thiab nti installation ob kauj ruam, ua ntej ntawm LED bracket ntawm cov kua nplaum nyiaj (cov ntaub nplaum nplaum), thiab tom qab ntawd siv lub tshuab nqus tsev nqus los nqus cov LED nti txav txoj haujlwm, thiab tom qab ntawd muab tso rau. txoj haujlwm sib thooj ntawm kev txhawb nqa.

Nyob rau hauv tus txheej txheem ntawm tsis siv neeg mounting, nws yog ib qho tseem ceeb kom paub txog cov kev khiav hauj lwm thiab kev pab cuam ntawm cov cuab yeej, thiab kho cov kua nplaum thiab installation qhov tseeb ntawm cov khoom. Hauv kev xaiv lub nozzle kom deb li deb tau xaiv Bakelite nozzle, txhawm rau tiv thaiv kev puas tsuaj rau saum npoo ntawm LED nti, tshwj xeeb tshaj yog xiav, ntsuab nti yuav tsum siv bakelite. Vim tias lub nozzle khawb cov txheej txheej tam sim no ntawm cov nti.

Kauj Ruam 7: Sintering

Lub hom phiaj ntawm sintering yog kho cov kua nplaum nyiaj, thiab sintering yuav tsum tau saib xyuas qhov kub thiab txias los tiv thaiv cov khoom tsis zoo.

Lub sintering kub ntawm cov kua nplaum yog feem ntau tswj ntawm 150 degree thiab lub sij hawm sintering yog 2 teev. Raws li qhov teeb meem tiag tiag tuaj yeem hloov kho rau 170 degree, 1 teev.

Insulating kua nplaum feem ntau 150 degree, 1 teev.

Cov nyiaj kua nplaum sintering qhov cub yuav tsum tau qhib txhua 2 teev (los yog 1 teev) raws li cov txheej txheem yuav tsum tau hloov cov khoom sintered, thiab qhov nruab nrab yuav tsum tsis txhob qhib thaum yuav. Lub qhov cub sintering yuav tsum tsis txhob siv rau lwm lub hom phiaj los tiv thaiv kev ua qias tuaj.

8. Siab vuam

Lub hom phiaj ntawm kev sib txuas siab yog coj cov electrode mus rau LED nti kom ua tiav kev sib txuas ntawm cov khoom siv sab hauv thiab sab nraud ntawm cov khoom.

LED siab vuam txheej txheem muaj ob hom kub hlau pob vuam thiab txhuas hlau siab vuam. Daim duab ntawm sab xis yog cov txheej txheem ntawm txhuas hlau siab vuam, thawj zaug nias lub ntsiab lus ntawm LED nti electrode, thiab tom qab ntawd rub lub txhuas hlau mus rau qhov sib txuas, nias lub ntsiab lus thib ob thiab tom qab ntawd rub tawm cov txhuas hlau. Cov txheej txheem kub hlau pob vuam kub hnyiab tau ib lub pob ua ntej nias thawj lub ntsiab lus, thiab cov txheej txheem seem zoo sib xws.

Siab vuam yog qhov txuas tseem ceeb hauv LED ntim tshuab, qhov tseem ceeb yuav tsum tau saib xyuas cov txheej txheem yog lub siab vuam kub hlau (txhuas hlau) arch hlau zoo li, solder sib koom ua ke, nro.

Txoj kev tshawb fawb tob ntawm cov txheej txheem vuam siab muaj ntau yam teeb meem, xws li cov khoom siv kub (aluminium) hlau, ultrasonic zog, siab vuam siab, xaiv cleaver (steel tip), txoj kev txav ntawm cleaver (steel tip) thiab lwm yam. (Cov duab hauv qab no yog daim duab microscopic ntawm lub solder sib koom nias los ntawm ob qhov sib txawv ntawm qhov sib txawv nyob rau hauv tib lub sijhawm, thiab muaj qhov sib txawv ntawm qhov microstructure ntawm ob, uas cuam tshuam rau qhov zoo ntawm cov khoom.) Peb yuav tsis mus hla lawv ntawm no.

9. Ntim pob

LED ntim tsuas yog kua nplaum, potting, molding peb. Yeej, qhov nyuaj ntawm kev tswj cov txheej txheem yog npuas, ntau cov ntaub ntawv uas ploj lawm, cov pob dub. Tus tsim yog tsuas yog nyob rau hauv kev xaiv ntawm cov ntaub ntawv, kev xaiv ntawm ib tug zoo ua ke ntawm epoxy thiab kev txhawb nqa. (General LED tsis tuaj yeem dhau qhov ntsuas huab cua nruj)

TOP-LED thiab Side-LED raws li qhia ntawm sab xis yog tsim rau cov pob khoom xa tawm. Kev tuav cov pob khoom siv yuav tsum muaj kev ua haujlwm siab (tshwj xeeb tshaj yog cov coj dawb), thiab qhov teeb meem tseem ceeb yog kev tswj hwm tus nqi xa tawm, vim tias epoxy yuav thicken thaum siv. Kev xa tawm ntawm LED dawb kuj muaj qhov teeb meem ntawm phosphor nag lossis daus ua rau lub teeb xim sib txawv.

10. Glue-filling pob

Lub encapsulation ntawm Teeb-LED txais yuav daim ntawv ntawm potting. Cov txheej txheem ntawm potting yog thawj zaug txhaj cov kua epoxy rau hauv LED molding kab noj hniav, thiab tom qab ntawd ntxig lub siab welded LED bracket, muab tso rau hauv qhov cub kom cia cov epoxy kho, thiab tom qab ntawd cov LED yog molded tawm ntawm pwm kab noj hniav.

11. Moulded pob

Lub pressed welded LED bracket tau muab tso rau hauv pwm, lub puab tsaig sab sauv thiab sab pwm raug kaw los ntawm hydraulic xovxwm thiab nqus, cov khoom epoxy tau muab tso rau hauv qhov nkag ntawm cov kua nplaum txhaj tshuaj channel, rhuab thiab nias rau hauv pwm kua nplaum channel los ntawm hydraulic jacking pas nrig. , thiab cov epoxy nkag mus rau txhua qhov LED ua groove raws cov kua nplaum channel thiab solidified.

12. Kho thiab tom qab kho

Curing yog hais txog kev kho ntawm encapsulated epoxy, thiab qhov kev kho epoxy dav dav yog 135 degree C rau 1 teev. Moulded ntim feem ntau ntawm 150 degree C rau 4 feeb.

13. Tom qab kho

Tom qab kho yog tso cai rau cov epoxy los kho tag nrho, thaum thermal aging ntawm LED. Tom qab kho yog qhov tseem ceeb heev los txhim kho lub zog adhesion ntawm epoxy rau kev txhawb nqa (PCB). Qhov dav dav yog 120 degree rau 4 teev.

14. Siav thiab hlais

Txij li thaum cov leds txuas ua ke hauv kev tsim khoom (tsis yog ib leeg), lub teeb pob LED siv cov hlua txiav los txiav tawm cov leeg ntawm LED bracket. SMD-LED nyob rau ntawm lub rooj tsavxwm PCB, xav tau lub tshuab scribing kom tiav cov haujlwm sib cais.

15. Kev sim

Ntsuam xyuas cov duab hluav taws xob tsis zoo ntawm LED, tshawb xyuas cov duab loj, thiab xaiv cov khoom siv LED raws li cov neeg siv khoom xav tau.

16. Ntim

Cov khoom tiav yog suav thiab ntim. Ultra-ci LED yuav tsum tau ntim los tiv thaiv zoo li qub.