We tried to hand place and reflow shields (large ones)after SMD placement.
In this case it was very unsuccessful due the large area and the tooling
required to "hold" it down to the PCB.   It was a folded shield
presoldered/assembeled to other folded shields pieces to make up a large shield.

There is a company that custom makes shields that can be auto pick and
placed.  It might be worth looking into.  In general, if a large area is
required to be shielded I think your better of to place several smaller
shield pieces to accomplish this task if possible.

Shield Company:
BMI
345 North Eric Drive
Palatine, IL 60067-2537
(708) 934 4700


                                Mark Spitnale
                                Hughes Defense
                                [log in to unmask]

...........................................................
>>
>>I was interested to see some discussion on the use of SMD shields pre
>>reflow.  Is there anybody out there who has experience with the use of
>>shields for RF shielding and is willing to divulge information?  I am
>>interested particularly in:
>>-drawn shields versus folded shields
>>-thermal dynamics of shield use.
>>
>>Any comments much appreciated.
>>
>>Cheers
>>Jesse 
>>Tait Electronics, New Zealand
>>
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>>
>----------------------------------
>Jeff L. Hempton        phone: (219) 429-7335   Fax: (219) 429-4688
>Boardshop Manufacturing Engineer			Mail Stop: 25-31
>Hughes Defense Communications                           
>1010 Production Road, Fort Wayne, IN 46808-4106
>Email: [log in to unmask]
>
>"The man who rolls up his sleeves seldom loses his shirt."--Thomas Cowan
>
>
>
----------------------------------
Mark W. Spitnale                Phone: (219) 429-5992   Fax: (219) 429-
Hughes Defense Communications                           Mail Stop: 25-31
1010 Production Road, Fort Wayne, IN 46808-4106
Email: [log in to unmask]

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