Our rule of thumb is that the board pad should line up with the component
pad under the chip, extending .030" out past the body.  Typically, the
metalization under the chip would be .050", add .030" to that for a pad
length of .080".  Pin 1 is usually longer.

Jim Marsico
Senior Engineer
Production Engineering
EDO Electronics Systems Group
[log in to unmask] <mailto:[log in to unmask]>
631-595-5879


        -----Original Message-----
        From:   Mike Clemente [SMTP:[log in to unmask]]
        Sent:   Thursday, March 21, 2002 1:51 PM
        To:     [log in to unmask]
        Subject:        [TN] 48 Pin LCC PCB Footprint

        Hi Everyone,

        I need the recommended PCB Footprint for a 48 Pin LCC (Leadless Chip
Carrier). Appreciate any assistance.

        Thanks,
        Mike

        Mike Clemente, C.I.D.
        Sr. PCB Design Specialist
        dZinit Applied Technologies
        Tel: 847-545-8170
        Fax: 847-545-8175
        Email: [log in to unmask]


----------------------------------------------------------------------------
-----
        Technet Mail List provided as a free service by IPC using LISTSERV
1.8d
        To unsubscribe, send a message to [log in to unmask] with following
text in
        the BODY (NOT the subject field): SIGNOFF Technet
        To temporarily halt delivery of Technet send e-mail to
[log in to unmask]: SET Technet NOMAIL
        To receive ONE mailing per day of all the posts: send e-mail to
[log in to unmask]: SET Technet Digest
        Search previous postings at: www.ipc.org > On-Line Resources &
Databases > E-mail Archives
        Please visit IPC web site http://www.ipc.org/html/forum.htm for
additional
        information, or contact Keach Sasamori at [log in to unmask] or
847-509-9700 ext.5315

----------------------------------------------------------------------------
-----

---------------------------------------------------------------------------------
Technet Mail List provided as a free service by IPC using LISTSERV 1.8d
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives
Please visit IPC web site http://www.ipc.org/html/forum.htm for additional
information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315
---------------------------------------------------------------------------------