Ukubuka konke okusheshayo:Ama-MOSFET angahluleka ngenxa yengcindezi ehlukahlukene kagesi, eshisayo, neyomshini. Ukuqonda lezi zindlela zokwehluleka kubalulekile ekuklameni amasistimu kagesi wamandla athembekile. Lo mhlahlandlela ophelele uhlola izindlela zokwehluleka ezivamile namasu okuvimbela.
Izindlela Ezijwayelekile Zokuhluleka kwe-MOSFET kanye Nezimbangela Zazo
1. Ukwehluleka Okuhlobene Nogesi
- Ukuhlukana kwesango le-oxide
- Ukuqhekeka kwe-avalanche
- Punch-through
- Ukulimala kokukhishwa okumile
2. Ukwehluleka Okuhlobene Nokushisa
- Ukuhlukaniswa kwesibili
- Ukubaleka okushisayo
- Iphakheji delamination
- I-bond wire lift-off
| Imodi yokwehluleka | Izimbangela Eziyinhloko | Izimpawu Eziyisixwayiso | Izindlela Zokuvimbela |
|---|---|---|---|
| Ukuhlukaniswa kwe-Gate oxide | Imicimbi ye-VGS eyeqile, ye-ESD | Ukuvuza kwesango okwandisiwe | Ukuvikelwa kwamandla kagesi wesango, izilinganiso ze-ESD |
| I-Thermal Runaway | Ukuchithwa kwamandla amaningi | Izinga lokushisa elikhulayo, isivinini esincishisiwe sokushintsha | Idizayini efanele yokushisa, iyancipha |
| Ukuqhekeka kwe-Avalanche | Ama-voltage spikes, ukushintsha okungahlanganisiwe kwe-inductive | Isifunda esifushane somthombo wokukhipha amanzi | Amasekhethi e-snubber, ama-voltage clamps |
I-Winsok's Robust MOSFET Solutions
Isizukulwane sethu sakamuva sama-MOSFET sibonisa izindlela zokuvikela ezithuthukile:
- I-SOA ethuthukisiwe (Indawo yokusebenza ephephile)
- Ukusebenza okushisayo okuthuthukisiwe
- Ukuvikelwa kwe-ESD eyakhelwe ngaphakathi
- Imiklamo elinganiselwe nge-avalanche
Ukuhlaziywa Okuningiliziwe Kwezindlela Zokwehluleka
Ukuhlukaniswa kwe-Gate oxide
Amapharamitha Abalulekile:
- I-Maximum Gate-Source Voltage: ±20V ejwayelekile
- Ubukhulu besango le-Oxide: 50-100nm
- Amandla Enkambu Yokuhlukaniswa: ~10 MV/cm
Izinyathelo Zokuvimbela:
- Sebenzisa i-gate voltage clamping
- Sebenzisa ama-resistors amasango ochungechunge
- Faka ama-TVS diode
- Izinqubo ezifanele zesakhiwo se-PCB
Ukuphathwa Kokushisa kanye Nokuvimbela Ukwehluleka
| Uhlobo Lwephakheji | I-Max Junction Temp | I-Derating enconyiwe | Isixazululo sokupholisa |
|---|---|---|---|
| KUYA-220 | 175°C | 25% | I-Heatsink + Fan |
| I-D2PAK | 175°C | 30% | Indawo Yethusi Enkulu + I-Heatsink Yokuzikhethela |
| I-SOT-23 | 150°C | 40% | I-PCB Copper Pour |
Amathiphu Edizayini Abalulekile Okwethenjwa kwe-MOSFET
Isakhiwo se-PCB
- Nciphisa indawo ye-loop yesango
- Amandla ahlukene kanye nezizathu zesignali
- Sebenzisa uxhumano lomthombo we-Kelvin
- Lungiselela ukubekwa kwe-thermal vias
Ukuvikelwa Kwesekethe
- Sebenzisa amasekhethi aqala kancane
- Sebenzisa ama-snubbers afanelekile
- Engeza ukuvikelwa kwe-voltage ehlehlayo
- Gada izinga lokushisa ledivayisi
Izinqubo Zokuxilonga Nokuhlola
I-Basic MOSFET Testing Protocol
- Ukuhlola Amapharamitha Aqinile
- I-Gate threshold voltage (VGS(th))
- I-Drain-source on-resistance (i-RDS(ivuliwe))
- Isango lokuvuza lamanje (IGSS)
- Ukuhlola Okunamandla
- Izikhathi zokushintsha (ton, toff)
- Izici zokushajwa kwesango
- Amandla okukhiphayo
Izinsizakalo Zokuthuthukisa Ukwethembeka zikaWinsok
- Ukubuyekezwa kohlelo lokusebenza oluphelele
- Ukuhlaziywa kokushisa kanye nokwenza kahle
- Ukuhlolwa kokwethembeka nokuqinisekisa
- Ukwesekwa kokuhlaziya ilabhorethri
Izibalo Zokwethembeka kanye Nokuhlaziywa Kwesikhathi Sokuphila
Amamethrikhi Abalulekile Okuthembeka
I-FIT Rate (Yehluleka Ngesikhathi)
Inombolo yokuhluleka ngebhiliyoni ngayinye yamahora wedivayisi
0.1 - 10 FIT
Ngokusekelwe ochungechungeni lwakamuva lwe-Winsok lwe-MOSFET ngaphansi kwezimo ezivamile
I-MTTF (Isikhathi Esimaphakathi Sokwehluleka)
Ukuphila okulindelwe ngaphansi kwezimo ezithile
>10^6 amahora
Ku-TJ = 125°C, i-voltage yegama
Izinga Lokusinda
Iphesenti lamadivayisi asinda ngaphezu kwesikhathi sewaranti
99.9%
Eminyakeni engu-5 yokusebenza okuqhubekayo
I-Lifetime Derating Factors
| Isimo sokusebenza | I-Derating Factor | Umthelela Ekuphileni Kokuphila |
|---|---|---|
| Izinga lokushisa (ngo-10°C ngaphezu kuka-25°C) | 0.5x | 50% ukuncishiswa |
| I-Voltage Stress (95% wesilinganiso esiphezulu) | 0.7x | 30% ukuncishiswa |
| Ukushintsha Imvamisa (2x igama) | 0.8x | 20% ukuncishiswa |
| Ukuswakama (85% RH) | 0.9x | 10% ukuncishiswa |
Ukusabalalisa okungenzeka kwempilo yonke
Ukusatshalaliswa kwe-Weibull kwempilo yonke ye-MOSFET okubonisa ukwehluleka kwangaphambi kwesikhathi, ukwehluleka okungahleliwe, nesikhathi sokuguga
Izimo Zokucindezeleka Kwezemvelo
I-Temperature Cycling
85%
Umthelela ekuncishisweni kwempilo yonke
I-Power Cycling
70%
Umthelela ekuncishisweni kwempilo yonke
Ukucindezeleka Komshini
45%
Umthelela ekuncishisweni kwempilo yonke
Imiphumela Yokuhlola Impilo Esheshisiwe
| Uhlobo Lokuhlola | Izimo | Ubude besikhathi | Isilinganiso Sokwehluleka |
|---|---|---|---|
| I-HTOL (Impilo Yokusebenza Yezinga Lokushisa Eliphezulu) | 150°C, Max VDS | Amahora angu-1000 | < 0.1% |
| I-THB (I-Temperature Humidity Bias) | 85°C/85% RH | Amahora angu-1000 | < 0.2% |
| I-TC (I-Temperature Cycling) | -55°C kuya +150°C | 1000 imijikelezo | < 0.3% |
Uhlelo lwe-Winsok Lokuqinisekisa Ikhwalithi
Ukuhlola Ukuhlola
- Ukuhlolwa kokukhiqiza okungu-100%.
- Ukuqinisekiswa kwepharamitha
- Izici ezinamandla
- Ukuhlola okubonakalayo
Izivivinyo Zokufaneleka
- Ukuhlolwa kokucindezeleka kwemvelo
- Ukuqinisekisa ukwethembeka
- Ukuhlolwa kobuqotho kwephakheji
- Ukuqapha ukwethembeka kwesikhathi eside
-
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