Dab tsi yog qhov txawv ntawm SMD thiab COB?
Dec 20, 2022
Lub npe tag nrho ntawm SMD yog "Nto Mounted Devices", uas yog hais txog cov khoom siv saum npoo av. Nws yog ib qho ntawm cov khoom siv thev naus laus zis adhesion.
Lub npe tag nrho ntawm COB yog "chip on board", uas yog hais txog chip ntim rau ntawm lub nkoj thiab yog ib qho ntawm cov pob liab qab nti mounting thev naus laus zis.
Qhov sib txawv ntawm SMD thiab COB yog raws li nram no:
1, Txawv ntau lawm efficiency
SMD: Kev tsim khoom ntawm SMD yog tsawg.
COB: COB ntau dua li SMD.
2, txawv lub teeb zoo
SMD: Kev sib xyaw ua ke ntawm cov khoom siv sib cais ntawm SMD muaj lub teeb pom kev thiab ci ntsa iab.
COB: COB muaj lub kaum sab xis pom loj thiab yooj yim kho, tsis muaj teeb pom kev zoo thiab ci ntsa iab.
3, Cov txheej txheem sib txawv
SMD: Nws yog hais txog cov txheej txheem ntawm kev txhim kho LED nti ntawm qhov sib txuas ntawm lub teeb hlaws dai nrog cov nplaum nplaum thiab cov nplaum nplaum, thiab tom qab ntawd vuam nrog tib yam conductivity li COB ntim. Tom qab kev ntsuas kev ua tau zoo, nws yog qhwv nrog epoxy resin nplaum, thiab tom qab ntawd lub teeb sib cais, txiav, taping, tsheb thauj mus los rau lub Hoobkas, thiab lwm yam.
COB: txhim kho LED nti ncaj qha rau ntawm daim ntawv sib txuas ntawm PCB teeb hlaws txoj haujlwm nrog cov nplaum nplaum thiab cov nplaum nplaum, thiab tom qab ntawd txuas cov conductivity ntawm LED nti. Tom qab qhov kev xeem tiav, qhwv nws nrog epoxy resin nplaum.
4, Kev siv tshuab sib txawv
SMD: Lub LED yuav tsum tau mounted ua ntej, thiab tom qab ntawd tsau rau ntawm PCB los ntawm reflow soldering.
COB: COB lub teeb ci yog siv ncaj qha rau cov teeb tsis muaj kev txuas thiab rov ua haujlwm.
Txais tos kom paub ntau ntxiv thiab xa cov lus nug →Khoom Paub meej
