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1 vote
0 answers
99 views

Failures on underside layers of a chip in IGBT power modules

Does somebody know how I can detect a layer of IGBT modules in which a thermal failure, e.g., voids, cracks, delaminations of solder joints, has taken place? We know there is fatigue in both solder ...
Mohsen's user avatar
  • 49
2 votes
1 answer
851 views

Difference between Vth and Vge?

What is the difference between the threshold voltage (Vth) and gate-emitter voltage (Vge) for IGBT devices? How can I calculate Vth of an IGBT chip?
Mohsen AB's user avatar
1 vote
1 answer
1k views

Electrical Conductivity of SAC solder

Can anybody help me find the electrical conductivity of SAC 305 (96.5Sn3Ag0.5Cu) solder? It is the most common solder in semiconductor IGBT/MOSFET power switches. Many thanks and best regards,
Mohsen's user avatar
  • 49
1 vote
2 answers
681 views

Input capacitance IGBT and MOSFET

I measured the input capacitance of a MOSFET and found it was greater than an IGBT. Why is this? Is it due to the Miller capacitance seen in a MOSFET?
user3447255's user avatar
1 vote
1 answer
169 views

Temperature dependance of IGBT max collector current

I have an IGBT (datasheet), that I am using as a switch for a coilgun. How would I calculate the maximum pulse collector current in function of the ambiant temperature and time? Also, if we're ...
Patrick Poitras's user avatar

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