Neckdown is a term used when a trace needs to be less wide in an area to get
through pad/lands or just for pad entry because of solderability issues.
I.E. say a conductor trace on a board is being routed at .025 wide and you
need to get between two pads that have a .020 clearance between them you
will need to neckdown the trace to say .008 wide. Or you are entering a .062
pad with .10 trace and need to neckdown to say .040 close to the pad for
solderability. Longwinded but basically making a trace less wide for a short
distance to maintain design rule clearance or solderability.
Robert M. Wolfe

        -----Original Message-----
        From:   Tenison Stone [SMTP:[log in to unmask]]
        Sent:   Thursday, November 12, 1998 4:17 PM
        To:     [log in to unmask]
        Subject:        [TN] neckdown

        Hi everyone!

        We're past the hump for the week, so I hope someone is compassionate
and
        will answer a rookie question.

        Please describe what "neckdown" is and how it is used.

        Thank you for your assistance in advance.

        Tension Stone
        Telex Communications
        Blue Earth, MN  56013
        507-526-3205

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