This sounds like a "straddle mount" connector.  You mentioned you have a
double side surface mount board.  If you have components on both sides, is
it possible with your design and/or process to reflow both sides with one
pass (i.e. paste one side, place components, invert board, paste second side
(with the necessary clearances for the components), place components
(including the connector), reflow)?   If so, you can stencil paste onto the
pads (both sides) for the connector and reflow as usual.  If the only
component on the "bottom" side is the "one half" of the connector (i.e. the
solder leads), then you could stencil paste onto the "bottom" side connector
pads, invert the board and paste the second side of your board, place
components (including the connector) and reflow.  (This style of board
reminds me of some disk drive boards I've seen.)  If you stencil paste for
this type of connector, the "rules" I've heard from the disk drive folks are
to locate the "front edge" of the paste deposit directly behind the tangent
point of the foot (usually a "J" style) and not along the entire length of
the pad.  This will eliminate the "plowing" of the solder paste when you
assemble the connector to the board which could result in bridging defects.

The "straddle mount" connectors are used in a great many disk drives.  If
you have any contacts in this industry you may want to get some advice
there.

Martha Rupert
AMP Incorporated

> -----Original Message-----
> From: Wade Oberle [SMTP:[log in to unmask]]
> Sent: Wednesday, April 07, 1999 4:18 PM
> To:   [log in to unmask]
> Subject:      [TN] soldering Connector
>
> Dear Technetters,
>         I have a double side surface mount board with an edge connector.
> The connector slides on the edge and has leads on both sides on the
> board at a pitch of 0.05".  There are about 30 leads on each side of the
> board.  We are planning to attach this as one of the final assembly
> processes but how.  Can we use a mini wave solder pot to create the
> solder joints or should we order a custom solder tip (0.05" x 1.68") so
> we can heat up all the leads on one side at one time and then feed in
> wire solder as needed?
>
> Any and all ideas would be appreciated.  If anyone knows of an automated
> or semi-automated 'hot bar' solder method, we are interested.
>
> Thanks in advance for your assistance.
>
> Wade Oberle
> [log in to unmask]
>
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