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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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Tubes Asylum Questions about tubes and gear that glows. FAQ |
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In Reply to: RE: Hey Sony posted by sony6060 on July 18, 2021 at 05:29:33:
I MANUFACTURED the HEXFRED while working for International Rectifier, prior to the sale to Infineon.It was a relitively quick process (number of steps).
It is or SHOULD be a commodity cheap product. 12x a conventional diode is ridiculous. The main
source of increase in cost is the EPITAXIAL Silicon used as start material....But each wafer held LOTS
of potential parts....And since the process was so simple, we got Very Good yield, indeed.
Don't let anyone tell you they are 'Expensive' to make or whatever. In-Fab yileds are high as are
probe yields. The MOST expensive part is the start wafer. We would start 'em 100 x 6" wafers at
a time. A single lot would yield THOUSANDS of parts. And require a fraction of the time and steps
used to make a MOSFET......or in our case.....a HEXFET device.
Too much is never enough
Edits: 07/28/21
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- RE: Hey Sony - pictureguy 20:32:20 07/28/21 (0)
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