Tom - they need the rev D BOM. How do they get it?
Dave Sorg
Manufacturing Engineer
Servatron Inc.
Desk: (509) 321-9516
Cell: (509) 385-1778
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-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Thayer, Wayne - IIW
Sent: Tuesday, May 31, 2011 3:13 PM
To: [log in to unmask]
Subject: Re: [TN] PRESS-FIT PINS IN RF PWB
Hi Jim-
The harder Rogers materials will have very little affect on the
press-fit design if the holes are well made and within spec--size,
plating, and surface finish are all very important. I think 403 is the
hard stuff, so you should be fine. (the mushy Teflon based stuff
probably won't provide enough swaging force to get a gas-tight seal
between the metals.)
One time I had a problem with a press fit with ImSn finish. The pins
splintered due to their hardness--not much splintering, just small
slivers at the corners of the pins. That made for very
difficult-to-find shorts. The same system worked fine with HASL
finish(Pb based). If you are permitted to use Pb based HASL for this
design, I believe it is the most forgiving for press fit. For my case,
perhaps the pins were just harder than they should've been.
Wayne Thayer
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Marsico, James - ES
Sent: Tuesday, May 31, 2011 2:34 PM
To: [log in to unmask]
Subject: [TN] PRESS-FIT PINS IN RF PWB
Hello Technetters:
We're considering a design that perhaps someone has looked into before.
We have a multilayer RF PWB (Rogers 4003), maybe 6 layers, .050 - .060"
thick, that we need to connect to an FR4 PWB. The two boards need to be
isolated, so each are going to be placed on either side of an aluminum
plate. In order to connect the two boards, we're considering using
solderless press-fit connector pins in each PWB. The connector
manufacturer does not have any data for installing the connector pins
into Rogers 403 material. Has anyone had any experience with this
application? By the way, we're looking at approximately 250
connections!
Jim Marsico
ITT Corporation
1500 New Horizons Blvd.
North Amityville, NY 11701
631-630-5079
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