                    -----------------------------
                    ANALOG DEVICES -   DIVISION
                    -----------------------------

                    Product Line:  

                    Board Name: 20_13014A

                    P/N: 09-13014 Rev A

                    PEOPLE INVOLVED
                    ---------------------------------------
                    Design Engineer involved: 
                    Layout Designer involved: 

                    CAD TOOLS
                    ----------------------------------------
                    Layout Software and Version: Allegro 16.2
                    Schematic Software and Version: 


Notes:

FLASH PAD GEOMETRY:

     NEGATIVE LAYER FLASH PADS;

        1, Thermal Relief flash Pads. Are dimensioned in mils,
           without leading zeros. They are encoded as follows:

           t 90 70 15x45 sp4
           | |  |    |    |_ number of spokes
           | |  |    |
           | |  |    |_spoke width and angle
           | |  |
           | |  |_inside diameter
           | |
           | |_outside diameter
           |
           |_thermal relief

        2, tdirect  Is used to make full contact with the plane.
                    A 5 mil circle or blank flash may be substituted.

        3, Anti-pad with copper pad retained. Used on negative layers
           where pad must be used as land contact for blind or buried
           vias. 

           s ap 20 12
           | |  |  |_ inside pad dimention
           | |  | 
           | |  |_ outside anti-pad dimention
           | |
           | |_ anti-pad designator
           |
           |_ s = square i.d. o.d. dimentions
              c = circular i.d. o.d. dimentions

     POSITIVE LAYER FLASH PADS;

        1, cir40 (cir#) Is used to indicate a spotting pad for non-
                        plated holes. A 40 (or #) mil circle or blank
                        flash may be substituted.

        2, Doughnut pads are used where land is required around non-
           plated holes, with relief of the land for the non-plated 
           drill. They are encoded as follows:

           dp 250 x 190
            |  |     |_ inside diameter
            |  |
            |  |_ outside diameter  
            |
            |_ doughnut pad

________________________________________________________________________

The following listed contacts are for the initial design order indicated
by the lot and dock delivery date listed below. Subsequent questions are
to be routed through the agent indicated on the purchase order.

Analog Devices Inc. -  , DIVISION
804 WOBURN ST
WILMINGTON MA 01887 - USA

Primary Contact: Wayne Burton
Phone:           339-645-3107
Fax:             

Boards to be bare board tested?        Yes

Boards to be TDR tested?               No

Check plots to ADI for verification?   No

Please call primary contact person once files have been verified.

If not specified on the purchase order,
Fabrication quantity to be             TBD

Dock date delivery                     TBD

