Kuzirala kwa Ma conduction: "Njira Yodekha" ya Ma Applications a High-Power Laser Diode Bar

Pamene luso lapamwamba la laser lamphamvu likupita patsogolo mofulumira, Mabala a Laser Diode (LDBs) agwiritsidwa ntchito kwambiri pokonza mafakitale, opaleshoni yachipatala, LiDAR, ndi kafukufuku wa sayansi chifukwa cha mphamvu zawo zazikulu komanso zowala kwambiri. Komabe, ndi kuphatikizika kochulukirako komanso kagwiritsidwe ntchito ka tchipisi ta laser, zovuta zowongolera kutentha zikukula kwambiri - zomwe zimakhudza mwachindunji kukhazikika kwa magwiridwe antchito ndi moyo wonse wa laser.

Mwa njira zosiyanasiyana zoyendetsera kutentha, Kuzizira kwa Contact Conduction kumadziwika kuti ndi imodzi mwazinthu zofunika kwambiri komanso zogwiritsiridwa ntchito kwambiri pakuyika ma laser diode bar, chifukwa cha mawonekedwe ake osavuta komanso matenthedwe apamwamba. Nkhaniyi ikuyang'ana mfundo, zofunikira zopangira mapangidwe, kusankha zinthu, ndi zochitika zamtsogolo za "njira yodekha" iyi yopita ku ulamuliro wa kutentha.

1. Mfundo za Kuziziritsa kwa Conduct Conduction

Monga momwe dzinalo likusonyezera, kuziziritsa kwa conduction kumagwira ntchito pokhazikitsa kulumikizana kwachindunji pakati pa chipangizo cha laser ndi choyatsira kutentha, kupangitsa kutentha kwabwinoko kudzera muzinthu zopangira matenthedwe apamwamba komanso kuthamangitsidwa mwachangu kumalo akunja.

①The HkudyaPakuti:

Mu kapamwamba laser diode, njira kutentha ndi motere:
Chip → Solder Layer → Kutsika (mwachitsanzo, mkuwa kapena ceramic) → TEC (Thermoelectric Cooler) kapena Sink ya Kutentha → Malo Ozungulira

②Mawonekedwe:

Njira yozizira iyi imakhala ndi:

Kutentha kokhazikika komanso njira yayifupi yotentha, kuchepetsa kutentha kwa mphambano; Mapangidwe ang'onoang'ono, oyenera ma CD ang'onoang'ono; Kuwongolera kokhazikika, komwe sikufuna malupu ozizirira ovuta.

2. Zolinga Zofunikira Zopangira Zopangira Matenthedwe

Kuti mutsimikizire kuziziritsa kogwira bwino kwa kulumikizana, zinthu zotsatirazi ziyenera kuyang'aniridwa mosamala pakukonza chipangizo:

① Thermal Resistance pa Solder Interface

Thermal conductivity of the solder layer imagwira ntchito yofunika kwambiri pakukana kwamafuta. Zitsulo zapamwamba kwambiri monga AuSn alloy kapena pure indium ziyenera kugwiritsidwa ntchito, ndipo makulidwe a solder ndi kufanana kuyenera kuwongoleredwa kuti muchepetse zotchinga zamafuta.

② Kusankha kwa Zinthu Zotsika

Zinthu zodziwika bwino za submount zikuphatikizapo:

Mkuwa (Cu): Kutentha kwapamwamba kwambiri, kutsika mtengo;

Tungsten Copper (WCu)/Molybdenum Copper (MoCu): Kufanana kwabwino kwa CTE ndi tchipisi, kumapereka mphamvu zonse komanso kuwongolera;

Aluminium Nitride (AlN): Kusungunula kwamagetsi kwabwino kwambiri, koyenera kugwiritsa ntchito ma voltage apamwamba.

③ Kulumikizana Kwapamwamba

Kuuma kwapamtunda, kusalala, ndi kunyowa kumakhudza mwachindunji kusamutsa kutentha. Kupukuta ndi kuyika golide nthawi zambiri kumagwiritsidwa ntchito kupititsa patsogolo kukhudzana ndi kutentha.

④ Kuchepetsa Njira Yotentha

Mapangidwe apangidwe amayenera kufupikitsa njira yotenthetsera pakati pa chip ndi choyimira kutentha. Pewani zigawo zapakati zosafunikira kuti muwongolere bwino pakuchotsa kutentha.

3. Njira Zachitukuko Zamtsogolo

Ndi kachulukidwe kamene kakupitilira ku miniaturization komanso kachulukidwe kakang'ono ka mphamvu, ukadaulo woziziritsa wa conduction ukuyenda motere:

① Ma TIM amitundu yambiri

Kuphatikizira zitsulo zotenthetsera matenthedwe ndi kubisalira kosinthika kuti muchepetse kukana kwa mawonekedwe ndikuwongolera kulimba kwa njinga zamoto.

② Packaging Yophatikizika ya Kutentha kwa Sink

Kupanga ma submounts ndi matenthedwe ozama ngati gawo limodzi lophatikizika kuti achepetse kulumikizana ndikuwonjezera kutentha kwadongosolo.

③ Kukhathamiritsa kwa Bionic Structure

Kuyika zinthu zowoneka ngati zazing'ono zomwe zimatengera momwe zimatenthetsera kutentha kwachilengedwe - monga "kuwongolera ngati mtengo" kapena "mapatele owoneka ngati sikelo" - kuti muwonjezere kutentha.

④ Intelligent Thermal Control

Kuphatikizira masensa a kutentha ndi kuwongolera kwamphamvu kwamphamvu yosinthira kutentha, kukulitsa moyo wogwiritsa ntchito chipangizocho.

4. Mapeto

Pamipiringidzo yamphamvu kwambiri ya laser diode, kasamalidwe kamafuta sizovuta zaukadaulo - ndi maziko odalirika odalirika. Kuziziritsa kwa conduction, komwe kumakhala kothandiza, kokhwima, komanso kutsika mtengo, kumakhalabe imodzi mwa njira zodziwika bwino zochotsera kutentha masiku ano.

5. Za Ife

Ku Lumispot, timabweretsa ukadaulo wozama pakuyika kwa laser diode, kuwunika kasamalidwe kamafuta, komanso kusankha zinthu. Ntchito yathu ndikupereka njira zotsogola kwambiri, zanthawi yayitali za laser zogwirizana ndi zosowa zanu. Ngati mukufuna kudziwa zambiri, tikukulandirani ndi manja awiri kuti mulumikizane ndi gulu lathu.