To: <amps@contesting.com>
>Date: Wed, 17 Jul 2002 12:23:37 -0400
>To: "alex" <alex@mail.sandlabs.com>
>From: "wlfuqu00@uky.edu" <Wlfuqu00@uky.edu>
>Subject: RE: [Amps] Thermal Management in SS Amps.
>
>
>This is about 1/35the wave length of visible light form about 7000 A to
>4000 A.
>And many molecules and even atoms that are larger than 100 Angstroms.
>100 microns or 100 microinches likely.
> I guess you assemble your heatsinks in a clean room.
>
>73
>Bill
>
>At 12:00 PM 7/17/02 -0400, you wrote:
>>NOVA Mechanics... Quins, NY
>>Alex
>>
>>
>>
>>
>> > -----Original Message-----
>> > From: wlfuqu00@uky.edu [mailto:Wlfuqu00@uky.edu]
>> > Sent: Wednesday, July 17, 2002 11:53 AM
>> > To: alex; AMPS
>> > Subject: Re: [Amps] Thermal Management in SS Amps.
>> >
>> >
>> > Show me a machine shop that can machine copper to 100 Angstroms.
>> >
>> > 73
>> > Bill
>> >
>> > At 11:10 AM 7/17/02 -0400, alex wrote:
>> > >One VERY important factor! The contact surface between the
>> > transistors and
>> > >the spreader and between the spreader and the
>> > >aluminum heat sink must be machined to a precision of better of
>> > >100Angstroms.
>> >
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