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MOSFET Kulephera Kusanthula: Kumvetsetsa, Kupewa, ndi Mayankho

MOSFET Kulephera Kusanthula: Kumvetsetsa, Kupewa, ndi Mayankho

Nthawi Yotumiza: Dec-13-2024

Chidule Chachangu:Ma MOSFET amatha kulephera chifukwa cha zovuta zosiyanasiyana zamagetsi, kutentha, ndi makina. Kumvetsetsa mitundu yolepherekayi ndikofunikira pakupanga makina odalirika amagetsi amagetsi. Buku lathunthu ili likuwunika njira zolephereka zomwe zimafanana komanso njira zopewera.

Avereji-ppm-kwa-Zosiyanasiyana-MOSFET-Kulephera-ModiMitundu Yambiri Yolephera ya MOSFET ndi Zomwe Zimayambitsa

1. Zolephera Zokhudzana ndi Voltage

  • Kuwonongeka kwa Gate oxide
  • Kuwonongeka kwa avalanche
  • Khonya-kudutsa
  • Kuwonongeka kwa static

2. Zolephera Zokhudzana ndi Kutentha

  • Kuwonongeka kwachiwiri
  • Kuthamanga kwamafuta
  • Phukusi delamination
  • Kukwera kwa waya wa bond
Kulephera Mode Zifukwa Zoyamba Zizindikiro Zochenjeza Njira Zopewera
Kuwonongeka kwa Gate Oxide Kuchuluka kwa VGS, ESD zochitika Kuchulukitsidwa kwa chipata Chitetezo chamagetsi pachipata, miyeso ya ESD
Thermal Runaway Kutaya mphamvu kwambiri Kutentha kwakukwera, kuchepetsa liwiro losinthira Kutentha koyenera, kutsika
Kuwonongeka kwa Avalanche Ma spikes a Voltage, kusintha kosinthika kosasinthika Drain-source short circuit Zozungulira za snubber, ma voltage clamps

Winsok's Robust MOSFET Solutions

M'badwo wathu waposachedwa wa MOSFET uli ndi njira zodzitetezera:

  • SOA Yowonjezera (Safe Operating Area)
  • Kuchita bwino kwa kutentha
  • Chitetezo chomangidwa mu ESD
  • Mapangidwe opangidwa ndi avalanche
Onani Zotetezedwa za MOSFET Series

Kusanthula Mwatsatanetsatane Njira Zolephera

Kuwonongeka kwa Gate Oxide

Zofunika Kwambiri:

  • Kuchuluka kwa Chipata-Magwero Voltage: ± 20V wamba
  • Kuchuluka kwa Oxide pachipata: 50-100nm
  • Mphamvu ya Munda Wowonongeka: ~ 10 MV/cm

Njira Zopewera:

  1. Yambitsani mphamvu ya gate voltage clamping
  2. Gwiritsani ntchito zopinga zipata zotsatizana
  3. Ikani ma diode a TVS
  4. Mawonekedwe oyenera a PCB

Kuwongolera Kutentha ndi Kupewa Kulephera

Mtundu wa Phukusi Max Junction Temp Analimbikitsa Derating Njira Yozizirira
KUTI-220 175 ° C 25% Heatsink + Fan
D2PAK 175 ° C 30% Dera Lalikulu Lamkuwa + Mwasankha Heatsink
SOT-23 150 ° C 40% PCB Copper Kutsanulira

Malangizo Ofunikira Opangira Kudalirika kwa MOSFET

Mapangidwe a PCB

  • Chepetsani malo olowera pachipata
  • Olekanitsa mphamvu ndi ma sign malo
  • Gwiritsani ntchito Kelvin source connection
  • Konzani kuyika kwa matenthedwe kudzera panjira

Chitetezo Chozungulira

  • Gwiritsani ntchito zoyambira zofewa
  • Gwiritsani ntchito snubbers zoyenera
  • Onjezani chitetezo cha reverse voltage
  • Yang'anirani kutentha kwa chipangizo

Njira Zowunika ndi Kuyesa

Basic MOSFET Testing Protocol

  1. Kuyesa kwa Static Parameters
    • Magetsi olowera pachipata (VGS(th))
    • Drain-source on-resistance (RDS(pa))
    • Gate leakage current (IGSS)
  2. Kuyesa Kwamphamvu
    • Nthawi zosinthira (tani, toff)
    • Makhalidwe a chipata
    • Linanena bungwe luso

Winsok's Reliability Enhancement Services

  • Kuwunika kwatsatanetsatane kwantchito
  • Kusanthula kwamafuta ndi kukhathamiritsa
  • Kuyesedwa kodalirika ndi kutsimikizira
  • Kulephera kusanthula ma laboratory thandizo
Pemphani Kusanthula Kulephera
Othandizira ukadaulo

Ziwerengero Zodalirika ndi Kusanthula kwa Moyo Wonse

Ma Metrics Odalirika Ofunikira

FIT Rate (Yolephera Nthawi)

Chiwerengero cha zolephera pa maora mabiliyoni a zida

0.1 - 10 ZOTHANDIZA

Kutengera ndi mndandanda waposachedwa wa MOSFET wa Winsok pansi pamikhalidwe mwadzina

MTTF (Nthawi Yanthawi Yolephereka)

Kuyembekezeredwa moyo pansi pamikhalidwe yodziwika

>10^6 maola

Pa TJ = 125 ° C, mphamvu yadzina

Mtengo Wopulumuka

Maperesenti a zida zomwe zatsala kupyola nthawi ya chitsimikizo

99.9%

Pa zaka 5 ntchito mosalekeza

Moyo Wosasintha Zinthu

Operating Condition Derating Factor Impact pa Moyo Wonse
Kutentha (pa 10°C pamwamba pa 25°C) 0.5x pa 50% kuchepetsa
Kupsinjika kwa Voltage (95% ya max rating) 0.7x pa 30% kuchepetsa
Kusintha pafupipafupi (2x mwadzina) 0.8x pa 20% kuchepetsa
Chinyezi (85% RH) 0.9x pa 10% kuchepetsa

Kugawira Kuthekera kwa Moyo Wonse

chithunzi (1)

Kugawa kwa Weibull kwa moyo wonse wa MOSFET kuwonetsa kulephera koyambirira, kulephera mwachisawawa, komanso nthawi yotopa

Zovuta Zachilengedwe

Kutentha Panjinga

85%

Zokhudza kuchepetsa moyo wonse

Power Cycling

70%

Zokhudza kuchepetsa moyo wonse

Kupsinjika Kwamakina

45%

Zokhudza kuchepetsa moyo wonse

Zotsatira Zachangu Zoyesa Moyo

Mtundu Woyesera Zoyenera Kutalika Mtengo Wolephera
HTOL (Kutentha Kwambiri Moyo Wogwira Ntchito) 150°C, Max VDS 1000 maola <0.1%
THB (Kutengera Chinyezi Chotentha) 85°C/85% RH 1000 maola <0.2%
TC (Kuthamanga Panjinga) -55°C mpaka +150°C 1000 zozungulira <0.3%

Winsok's Quality Assurance Program

2

Kuyeza Mayeso

  • 100% kuyesa kupanga
  • Kutsimikizira kwa parameter
  • Makhalidwe amphamvu
  • Kuyang'ana m'maso

Mayeso Oyenerera

  • Kuwunika kupsinjika kwa chilengedwe
  • Kutsimikizika kodalirika
  • Kuyesa kukhulupirika kwa phukusi
  • Kuyang'anira kudalirika kwanthawi yayitali

ZogwirizanaZamkatimu

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