Is the switch one that comes with the tape or are you applying a
        tape cover at some point in your process?  If it comes with the
        tape form the manufacturer, they may be able to tell you what
        the process parameters are.

        The switches we assemble prior to reflows, wave etc. are
        purchased from the manufacturer with a protective tape in place.
         We haven't had any problems removing these.

        During rework, we apply a kapton tape to protect the switches
        and then remove it after the cleaning is complete.

        Any other tape type may be a problem.

        Jan Pelchat


______________________________ Reply Separator _________________________________
Subject: [TN] Tape on DIP Switch
Author:  Mike Lang <[log in to unmask]> at 0UTG0ING
Date:    8/20/98 2:23 PM


We are using a DIP switch with a tape cover to protect it
during reflow soldering.   The DIP sees two reflow cycles.

On SOME of the parts, we are experiencing extremely high
tape removal forces, in some cases actually tearing the top
off of the switch.

1) Has anyone else seen this?

2) I know two reflow cycles will be suspect...  But any known
problem?

3) Suggested solutions?

Thanks,

Mike

################################################################
TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c
################################################################
To subscribe/unsubscribe, send a message to [log in to unmask] with following text
in the body:
To subscribe:   SUBSCRIBE TechNet <your full name>
To unsubscribe:   SIGNOFF TechNet
################################################################
Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for
additional information.
For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700
ext.312
################################################################

################################################################
TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c
################################################################
To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body:
To subscribe:   SUBSCRIBE TechNet <your full name>
To unsubscribe:   SIGNOFF TechNet
################################################################
Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for additional information.
For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312
################################################################

################################################################
TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c
################################################################
To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body:
To subscribe:   SUBSCRIBE TechNet <your full name>
To unsubscribe:   SIGNOFF TechNet 
################################################################
Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for additional information.
For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312
################################################################