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Scripted SOIC-8-1EP footprint for HIP2100

Rene Poeschl requested to merge github/fork/poeschlr/soic-8_ep_fet_driver into master

https://www.renesas.com/eu/en/www/doc/datasheet/hip2100.pdf#page=13

symbol PR: https://github.com/KiCad/kicad-symbols/pull/1481 script PR: https://github.com/pointhi/kicad-footprint-generator/pull/287

screenshot from 2019-02-03 15-34-32

SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.514x3.0mm:
  size_source: 'https://www.renesas.com/eu/en/www/doc/datasheet/hip2100.pdf#page=13'
  body_size_x:
    minimum: 3.8 # rounded from 3.811
    maximum: 4.0 # rounded from 3.99
  body_size_y:
    minimum: 4.8
    maximum: 5.0 # rounded from 4.98
  body_height:
    minimum: 1.43
    maximum: 1.68

  overall_size_x:
    minimum: 5.84
    maximum: 6.2
  lead_len:
    minimum: 0.41
    maximum: 0.89
  lead_width:
    minimum: 0.35
    maximum: 0.49

  pitch: 1.27
  num_pins_x: 0
  num_pins_y: 4

  EP_size_x:
    nominal: 2.514 # only maximum given but that is not supported by the script
    tolerance: 0

  EP_size_y:
    nominal: 3.0 # only maximum given but that is not supported by the script
    tolerance: 0

  EP_num_paste_pads: [2, 2]

  thermal_vias:
    count: [2, 3]
    drill: 0.2
    paste_via_clearance: 0.1
    EP_num_paste_pads: [2, 2]
    EP_paste_coverage: 0.7
    grid: [1.4, 1.0]
    paste_avoid_via: False

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