{
  "schema": "feldra-product-comparison-v1",
  "date": "2026-11-09",
  "scope": "Registered unsigned significand product generator only. Not a full FMA, chip or model.",
  "conditions": {
    "clock_ns": 50,
    "io_budget_ns": 10,
    "clock_uncertainty_ns": 0.1,
    "voltage_V": 1.2,
    "temperature_C": 25,
    "corner": "typical",
    "process": "IHP SG13G2",
    "die_um": [
      800,
      800
    ],
    "core_um": [
      760,
      760
    ],
    "placement_runs_per_variant": 1,
    "outputs_per_cycle_per_lane": 1
  },
  "source_files": [
    "sources/product-diagnostics.json",
    "sources/internal-sta-audit.json"
  ],
  "rows": [
    {
      "id": "16-baseline",
      "lanes": 16,
      "variant": "baseline",
      "stdcell_area_um2": 108739,
      "die_area_um2": 640000,
      "routed_wirelength_um": 364106,
      "buffer_count": 1259,
      "max_postrepair_signal_fanout": 8,
      "final_electrical_rule_check": {
        "max_slew_violation_count": 0,
        "max_capacitance_violation_count": 0,
        "max_fanout_violation_count": 0,
        "reported_max_fanout_limit": 8,
        "all_reported_checks_zero": true,
        "raw_finish_json_sha256": "d86a2b69735ba5335b289cbf51e3e8555c2fd88aab7d42a98c437d9b6a5378ea"
      },
      "spef_sum_reported_net_total_by_signal_pf": {
        "CLOCK": 1.2021976399999996,
        "SIGNAL": 52.585812776100155
      },
      "qualified_with_cts_dummy_output_exception": true,
      "timing_usable": false,
      "route_gates": {
        "detailedroute__route__drc_errors": 0,
        "detailedroute__antenna__violating__nets": 0,
        "detailedroute__antenna__violating__pins": 0,
        "detailedroute__flow__errors__count": 0
      },
      "internal_setup_slack_ns": 44.205032349,
      "internal_minimum_period_ns": 5.794967651,
      "internal_fmax_MHz": 172.56,
      "all_resets_inactive": true,
      "reported_paths_end_at_D": true
    },
    {
      "id": "16-shared",
      "lanes": 16,
      "variant": "shared",
      "stdcell_area_um2": 103023,
      "die_area_um2": 640000,
      "routed_wirelength_um": 578152,
      "buffer_count": 1419,
      "max_postrepair_signal_fanout": 12,
      "final_electrical_rule_check": {
        "max_slew_violation_count": 0,
        "max_capacitance_violation_count": 0,
        "max_fanout_violation_count": 1,
        "reported_max_fanout_limit": 8,
        "all_reported_checks_zero": false,
        "raw_finish_json_sha256": "773cff6288b46ec96fddf88819981e3cc6813c0b5c2a604bd947cc7a32ce0262"
      },
      "spef_sum_reported_net_total_by_signal_pf": {
        "CLOCK": 1.0830931,
        "SIGNAL": 96.36195297780051
      },
      "qualified_with_cts_dummy_output_exception": true,
      "timing_usable": false,
      "route_gates": {
        "detailedroute__route__drc_errors": 0,
        "detailedroute__antenna__violating__nets": 0,
        "detailedroute__antenna__violating__pins": 0,
        "detailedroute__flow__errors__count": 0
      },
      "internal_setup_slack_ns": 41.471923828,
      "internal_minimum_period_ns": 8.528076171999999,
      "internal_fmax_MHz": 117.26,
      "all_resets_inactive": true,
      "reported_paths_end_at_D": true
    },
    {
      "id": "32-baseline",
      "lanes": 32,
      "variant": "baseline",
      "stdcell_area_um2": 211797,
      "die_area_um2": 640000,
      "routed_wirelength_um": 774056,
      "buffer_count": 2500,
      "max_postrepair_signal_fanout": 13,
      "final_electrical_rule_check": {
        "max_slew_violation_count": 0,
        "max_capacitance_violation_count": 0,
        "max_fanout_violation_count": 2,
        "reported_max_fanout_limit": 8,
        "all_reported_checks_zero": false,
        "raw_finish_json_sha256": "2102583d4309b5bb7c2e110c2ea104142f139984d76056ab1acdcd4531b898a0"
      },
      "spef_sum_reported_net_total_by_signal_pf": {
        "CLOCK": 2.2157214200000004,
        "SIGNAL": 118.74181042050054
      },
      "qualified_with_cts_dummy_output_exception": true,
      "timing_usable": false,
      "route_gates": {
        "detailedroute__route__drc_errors": 0,
        "detailedroute__antenna__violating__nets": 0,
        "detailedroute__antenna__violating__pins": 0,
        "detailedroute__flow__errors__count": 0
      },
      "internal_setup_slack_ns": 43.268096924,
      "internal_minimum_period_ns": 6.731903076000002,
      "internal_fmax_MHz": 148.55,
      "all_resets_inactive": true,
      "reported_paths_end_at_D": true
    },
    {
      "id": "32-shared",
      "lanes": 32,
      "variant": "shared",
      "stdcell_area_um2": 195683,
      "die_area_um2": 640000,
      "routed_wirelength_um": 1172929,
      "buffer_count": 2859,
      "max_postrepair_signal_fanout": 14,
      "final_electrical_rule_check": {
        "max_slew_violation_count": 0,
        "max_capacitance_violation_count": 0,
        "max_fanout_violation_count": 6,
        "reported_max_fanout_limit": 8,
        "all_reported_checks_zero": false,
        "raw_finish_json_sha256": "774bc2b1907bf60d84be53d034c18e953c53d38594337204f5f903ccca1f5bcb"
      },
      "spef_sum_reported_net_total_by_signal_pf": {
        "CLOCK": 2.1779411900000003,
        "SIGNAL": 202.87790574920058
      },
      "qualified_with_cts_dummy_output_exception": true,
      "timing_usable": false,
      "route_gates": {
        "detailedroute__route__drc_errors": 0,
        "detailedroute__antenna__violating__nets": 0,
        "detailedroute__antenna__violating__pins": 0,
        "detailedroute__flow__errors__count": 0
      },
      "internal_setup_slack_ns": 40.756816864,
      "internal_minimum_period_ns": 9.243183135999999,
      "internal_fmax_MHz": 108.19,
      "all_resets_inactive": true,
      "reported_paths_end_at_D": true
    }
  ],
  "routed_function_outputs_compared": 3342336,
  "energy_advantage_proven": false,
  "physical_signoff": false,
  "timing_qualification": "Only with the documented unconnected CTS dummy-output exception. Fanout target violations remain.",
  "capacitance_scope": "Sum of SPEF D_NET totals. PIN_CAP NONE. Coupling can be counted in multiple net totals. Not switched or unique physical capacitance."
}