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Re: [Amps] mounting (UHF) RF powermodules

Subject: Re: [Amps] mounting (UHF) RF powermodules
From: peter.chadwick@Zarlink.Com
Date: Mon, 24 Mar 2008 12:49:24 +0000
List-post: <">>
Steve said:

>Expanding on those, any heatsink you buy will not 
be flat enough without machining, ideally with a large diameter 
'fly' cutter. You are also looking for a good surface finish with 
machining ridges barely detectable with a fingernail. As well as 
flat (50um or .001" over the module area) clean is important.<

Not sure that I would agree about a fly cutter. Better than nothing, but I 
would prefer 
a horizontal milling cutter. Alternatively, a face-and-end milling cutter. 
A large slot drill 
might give a good enough finish.

Another good way would be to use a shaping machine.


Peter G3RZP

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