DATE:  29-July-2020

TO:    NV Board PCB Manufacturer

FROM:  Dan Edmunds
       Physics Department
       Michigan State University

RE:    Manufacture the bare  "NV Board"  pcb



         NV Board  Circuit Board Manufacturing
       -----------------------------------------

This note is the details for manufacturing the bare
"NV Board"  printed circuit board.

The NV Board is a small microwave circuit board.  Final
milling of this board will be done in the customers lab.
The perimeter of this card has no copper and contains
only 4 holes for alignment doll pins.

A dimensioned layout drawing of the NV Board pcb is
available in the Gerber file:  artwork_3_nv_brd

The central 14 mm by 25 mm rectangular section of the top
side of this card is a ground plane with a few embedded
traces.

The central part of the bottom side of this card is all
ground plane.

This instruction file, the Gerber files, and the drill files
for the NV Board circuit board are available on the web:

  https://web.pa.msu.edu/people/edmunds/NV_Brd/Release/



     Data for Manufacture of the   NV Board   PCB
    ---------------------------------------------------

  Circuit board name:  NV Board

  All design data is in mm

  Quantity Ordered:  4  cards

  Layer Count:   2

  Circuit Board Material:  Rogers  AD-1000

  Overall Circuit Board Size:  30 mm x 40 mm

       30 mm  wide  X dimension
       40 mm  tall  Y dimension

       The 0,0 origin is in the card's  Center.


  Overall Circuit Board Thickness:  nominal 1.27 mm   (50 mils)

  Copper weight:  1 oz copper on Top and Bottom

  Surface Finish:  ENIG

  Solder Mask:  There is  NO  Solder Mask on either side

  Silk Screen:  There is a Silk Screen on both sides


  Holes:  There are 4 different hole sizes

     Drill #1    Plated    Nominal Dia. 0.40 mm    Count 54
     These holes are for vias between the top and bottom
     side ground planes.  They may close in during plating.


     Drill #2    Plated    Nominal Dia. 0.85 mm    Count  3
     These are holes for vias near the center of the board.
     Note that there is NO Pad on the top side of these vias.


     Drill #3    Plated    Nominal Dia. 2.40 mm    Count  4
     These holes are for for #2 machine screws.
     

     Drill #4    Non-Plated    Diameter 3.20 mm    Count  4
     These  non-plated  holes are for  1/8" diameter
     doll pins which are used to align the bare board
     for final milling in the customer's lab.



  Board Layers and Files:


      Assembly of the Board   Stack-up Order of the Layers:
  ------------------------------------------------------------

               Top Side  Silk Screen             File Number 4

    Layer 1:   Top Side     Plane & few Traces   File Number 1
    Layer 2:   Bottom Side  Plane                File Number 2

               Bottom Side  Silk Screen          File Number 5




     Design  File-Names  Delivered to the PCB Manufacturer
  ------------------------------------------------------------

    artwork_1_nv_brd    Top side     Plane & few Traces   L1
    artwork_2_nv_brd    Bottom side  Plane                L2

    artwork_3_nv_brd    Dimensioned Drawing (shows top side)

    artwork_4_nv_brd    Top side    Silkscreen
    artwork_5_nv_brd    Bottom side Silkscreen

    drill_plated_nv_brd        Drill data for plated holes
    drill_unplated_nv_brd      Drill data for un-plated holes



Contact Information:

       Daniel Edmunds
       Physics Department
       Rm 2150  Bio-Medical Physical Sciences Bldg.
       Michigan State University
       East Lansing, MI  48824-2320

       Phone: (517) 884-5521
       Email: edmunds@pa.msu.edu
       FAX:   (517) 355-6661