//
//
//  file:   via_0mm58
//
//  date:   4-Jan-2025   Original version for the Disco-Kraken
//
//
//   This via is for use  within  a 1 mm pitch BGA component.
//
//   This via is used to connect bypass capacitors to the Power
//   and Ground Planes  under the BGA component.
//
//   This via is not used for normal trace routing.
//
//   This via can be used between 4 adjacent BGA Pads when one
//   of these pads is an unused component pin and thus does not
//   need to have its normal Dog-Bone &  Dog-Bone Via.
//
//   This via is special in other ways:
//
//     - Its Top side pad is smaller than its Bottom side pad.
//       There is never a trace connection to its Top side pad
//       and thus its top side pad can be smaller than normal
//       to reduce the chance of a short circuit to an adjacent
//       Top side BGA Pad.
//
//     - This via's Bottom side Pad is the normal diameter for
//       the 1 mm pitch BGAs in the DK design,  i.e. 0.58 mm.
//
//     - This via is Plugged from the Top side as is normal for
//       all vias within the BGA.
//
//     - This via has Solder Mask relief on its Bottom side,
//       i.e. it is a normal "un-tented" via.
//
//
//   Details of this via:
//
//      Via Drill Hole                0.30 mm  in diameter  TERMINAL_DRILL_SIZE
//
//      Via Pad Land on Top side      0.48 mm  in diameter
//
//      Via Pad Land on Bottom side   0.58 mm  in diameter
//
//      Via Solder Mask Opening       0.44 mm  in diameter
//          on the Bottom Only
//
//      Via is Plugged from the Top   0.30 mm  in diameter  on PREPREG_5
//
//      Via Plane Relief              0.82 mm  in diameter  on  POWER
//
//        --> via   Top  donut width around drill hole    0.090 mm
//        --> via Bottom donut width around drill hole    0.140 mm
//        --> via drill edge to plane clearance           0.260 mm
//        --> via drill hole edge to Bottom Solder Mask   0.070 mm
//        --> edge of Via pad to Bottom Solder Mask       0.070 mm
//        --> width of Gnd Web between pins               0.180 mm
//        --> narrowest point of Bottom Solder Mask       0.560 mm
//


$$lock_windows(@on);

$$create_via("via_0mm58");

$$page(0.0, 0.0, 0.0, @mm, 0.0, 0.0, [0.0,0.0,'VI$via_0mm58'] );

$$point_mode(@vertex);

$$attribute( "TERMINAL_THRUVIA_DEFINITION", "");

$$attribute( "TERMINAL_DRILL_SIZE", "", , @scale , , [  0.30,  0.0 ]);


$$circle( "PAD_1",                     0.000,  0.000,   0.48,   0.0);

$$circle( "PAD_2",                     0.000,  0.000,   0.58,   0.0);

$$circle( "SOLDER_MASK_2",             0.000,  0.000,   0.44,   0.0);

$$circle( "POWER",                     0.000,  0.000,   0.82,   0.0);

$$circle( "PREPREG_5",                 0.000,  0.000,   0.30,   0.0 );