sky130/qflow/sky130.par

# TECHNAME.par --- Parameter file for GrayWolf
# NOTE:  all distance units are in centimicrons unless otherwise stated
# WARNING: this is NOT tcl syntax! No Comments on end of actual data line.
# The vast majority of quantities here are not used (read instead from techLEF, etc.)

RULES
    # values are resistance in ohms/sq and capacitance in fF/um^2
    # TODO: properly pick directions
    layer metal1 0.105 0.0001 horizontal
    layer metal2 0.105 0.0001 vertical
    layer metal3 0.105 0.0001 horizontal
#ifdef METAL5
    layer metal4 0.105 0.0001 vertical
    layer metal5 0.105 0.0001 horizontal
#endif

    via via12 metal1 metal2
    via via23 metal2 metal3
#ifdef METAL5
    via via34 metal3 metal4
    via via45 metal4 metal5
#endif

              # 0.5 um
    width metal1 50
    width metal2 60
              # 0.6 um
    width metal3 60
#ifdef METAL5
    width metal4 60
    width metal5 60
#endif

    # TODO verify these two numbers
    width via12 50
    width via23 50
#ifdef METAL5
    width via34 50
    width via45 50
#endif

    # Set spacing = track pitch - width, so that GrayWolf places pins
    # on the right pitch.
    # Pitches are (in um):
    # metal1 = 200,  metal2 = 160,  metal3 = 200,  metal4 = 320
## pitch m1: 1.3um  m2: 1.4um  m3: 1.3um
## width m1: 0.5um  m2: 0.6um  m3: 0.6um
## space     0.8        0.8        0.7     (pitch calc)
## fab-space 0.45       0.5        0.6

    spacing metal1 metal1 80
    spacing metal2 metal2 80
    spacing metal3 metal3 80
#ifdef METAL5
    spacing metal4 metal4 80
    spacing metal5 metal5 80
#endif

    # (WAS:) Stacked vias allowed
    # spacing via12 via23 0

    # To disable Stacked?: give non-zero spacing (centimicrons = 10 nanometer = 1/100 of micron)
    # TODO need real value here:
    spacing via12 via23 0
#ifdef METAL5
    spacing via23 via34 0
    spacing via34 via45 0
#endif

                       # .2um .15um
    overhang via12 metal1 20
    overhang via12 metal2 15

    overhang via23 metal2 20
    overhang via23 metal3 15

#ifdef METAL5
    overhang via34 metal3 14
    overhang via34 metal4 16
    overhang via45 metal4 14
    overhang via45 metal5 16
#endif
ENDRULES

*vertical_wire_weight : 1.0
*vertical_path_weight : 1.0
*padspacing           : variable
*rowSep		      : 0.0   0
# min pitch of m1,m2,m3 (FIXME):
*track.pitch	      : 130
*graphics.wait        : off
*last_chance.wait     : off
*random.seed	      : 12345
# TODO: proper track.pitch number above, plus feedThruWidth below

TWMC*chip.aspect.ratio : 1.0

# FIXME:  Change width to width of minimum fill cell
TWSC*feedThruWidth    : 280 layer 1
TWSC*do.global.route  : on
TWSC*ignore_feeds     : true
TWSC*call_row_evener  : true
TWSC*even_rows_maximally : true
# TWSC*no.graphics    : on

GENR*row_to_tile_spacing: 1
# GENR*numrows		: 6
GENR*flip_alternate_rows : 1