General > General Technical Chat
What does a power semiconductor assembly company actually do?..and why?
(1/3) > >>
ocset:
Hi,
Do you know what this sort of company actually do?....

https://www.ppi-uk.com/assemblies/

…I mean, they  purport to make power semiconductor assemblies for multi-kilowatt power supplies.

This seems very odd to me…..i  mean, if you could do that, wouldn’t you just make the  whole power supply anyway? Why just do the  attachment of the power semiconductor to the heatsink?

Surely the overall power supply designer would want to do the power semiconductor heatsinking themselves anyway?
How can companies like this make money?

I cant imagine designing a power supply and then saying…oh yeah, we’ll outsource the power semiconductor heatsinking/assembly  etc to a private company…..surely that can't be done?….its an intrinsic part of the power supply and the power supply designer should do it?

Am I wrong?
MK14:

--- Quote from: treez on June 02, 2020, 01:32:35 pm ---This seems very odd to me…..

Am I wrong?

--- End quote ---

Apparently, yes.

E.g. A company may make lots of transistors.
That is fine, they don't have to turn the transistors into products (e.g. radios), or start a metal mine in South Africa, to get the raw metals, to make the transistor leads from.
They can just make and sell millions of transistors.
T3sl4co1l:
Makes sense, getting the switching loop right is the hardest part of power design, and a lot of power design engineers are awful at it (when's the last time you heard someone brag about their bucket of blown transistors?).  And thermal design being the next hardest thing.

It's not much of a market, low quantities, low value-add, but I guess they do enough to bother.

Tim
ocset:
Thanks, another point is that its strange to see such a company based in UK...i mean, there are no big British Power Electronics companies anyway. So i cant imagine who uses the services of PPi.

I mean.......the drives for our naval fleet are made by the French in France...our trains are made by the Germans in Germany etc etc...
ataradov:
Hey, it is treez is complaining again that nothing is made in the UK, even though he himself provides the evidence to the contrary. Have you considers that the problem is in you?
Navigation
Message Index
Next page
There was an error while thanking
Thanking...

Go to full version
Powered by SMFPacks Advanced Attachments Uploader Mod