Re: TQFP handling while developing

From: Rene Tschaggelar (none_at_none.net)
Date: 05/17/04 

Date: Mon, 17 May 2004 12:26:15 +0200

Paul E. Bennett wrote:

> Paul Rosen wrote:
>
>
>>Rene Tschaggelar <none@none.net> schrieb:
>>
>>
>>>What is the problem in creating an application specific board with
>>>everything on that is required for the project ?
>>
>>The problem is, that you do not know before what hardware you need for
>>a project, even in analog-applications. Software and hardware are
>>developed together. You have not only to change the software, but also
>>the hardware. And sometimes you need more than one controller. You
>>cannot use a new board for maybe every 20 versions, because you cannot
>>produce TQFD boards yourself. You have to give it away. And only one
>>PCB is very expensiv and needs much time. If you could produce the PCB
>>yourself, you make some changes in the layout and get a new one in
>>half an hour.

I do make TQFP boards myself. Now also with 0603 parts.
I'm not drilling below 0.7mm or 28mil though.
But also that is doable.

And when I don't like to drill the many holes, I let the board
be done. Depending on the required services I can get
1 dm^2 for 60 Euro or even less withing 3 weeks or even less.

Rene

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