QFN thiab DFN, ob hom semiconductor ntim tivthaiv, feem ntau yooj yim tsis meej pem hauv kev ua haujlwm. Nws yog feem ntau tsis meej qhov yog qfn thiab ib qho twg yog DFN. Yog li ntawd, peb yuav tsum nkag siab tias QFN yog dab tsi thiab DFN yog dab tsi.
QFN yog hom ntim. Nws yog lub npe tau hais tseg los ntawm Nyiv txhais lus thiab cov kev lag luam koom tes nrog, nrog thawj tsab ntawv ntawm txhua ntawm peb cov lus Askiv tsim. Nyob rau hauv Suav, nws yog hu ua "xwm fab ca tsis muaj-lead pob."
DFN yog kev txuas ntxiv ntawm QFN, nrog thawj tsab ntawv ntawm txhua ntawm peb cov lus Askiv tsim.
Cov pins ntawm QFN ntim tau muab faib rau txhua plaub sab ntawm pob thiab cov tsos zuag qhia tag nrho yog square.
Cov pins ntawm DFN ntim tau muab faib rau ob sab ntawm pob thiab lub ntsej muag tag nrho yog duab dhos.
Txhawm rau paub qhov txawv ntawm QFN thiab DFN, koj tsuas yog xav tau txiav txim siab txog ob yam. Ua ntej, saib seb cov pins yog nyob ntawm plaub sab lossis ob sab. Yog tias cov pins nyob rau txhua plaub sab, nws yog qfn; Yog tias cov pins tsuas yog nyob ntawm ob sab, nws yog DFN. Thib ob, txiav txim siab seb puas muaj plaub fab tag nrho yog plaub fab lossis duab plaub. Feem ntau, cov xwm txheej square qhia QFN, thaum lub duab sib dhos duab qhia DFN.
Lub Sijhawm Post: Mar-30-2024