We've done very similar things to accomidate alternate parts.  The solder
paste deposited through our 8 mil thick stencils and then reflowed, has
produced good solder joints in all cases.   




>
>I'm a pcb designer.  I have a customer that needs the option of using either
>a .3 wide or .4 wide 32 pin j-leaded part in the same location.
>
>These are only prototype boards and small quantity.  Probably won't be
reflowed.
>
>Question:
>
>In order to accomodate both parts the footprint is going to be extra long.
>What problems will be encountered soldering the part to the board?  Will the
>solder wickup onto the j-lead properly?
>
>Any suggestions?
>
>--------------------------------------
>Larry L. Pucket
>Sandia National Labs.
>Dept. 9784  MS/0624
>P.O. Box 5800
>Albuquerque, NM 87185-0624
>
>Email: [log in to unmask]
>Phone: (505) 844-1711
>Fax:   (505) 844-7428
>
>
>
Bryan Woods
Manufacturing Engineer
Parker Compumotor
Phone: (707)584-2542
FAX:   (707)584-8015
Email: [log in to unmask]