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  "load": "expedite_heavy",
  "disruption": "tool_down",
  "strategy": "atc_dispatch",
  "scenario_label": "Precision Optics Manufacturing \u00b7 Expedite-Heavy Portfolio \u00b7 Tool Down Events",
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    "horizon_h": 288,
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        "lot_id": "LOT-0022",
        "operation_id": "deposit_1",
        "step_index": 5,
        "machine_id": "depo_01",
        "machine_group": "deposition",
        "start_h": 191.54,
        "end_h": 196.87,
        "setup_time_h": 0.75,
        "is_batch": false,
        "batch_id": null,
        "is_rework": false
      },
      {
        "lot_id": "LOT-0002",
        "operation_id": "clean_1",
        "step_index": 2,
        "machine_id": "clea_01",
        "machine_group": "cleaning",
        "start_h": 241.64,
        "end_h": 247.86,
        "setup_time_h": 0.0,
        "is_batch": true,
        "batch_id": "B-cleaning-241",
        "is_rework": false
      },
      {
        "lot_id": "LOT-0009",
        "operation_id": "inspect_1",
        "step_index": 4,
        "machine_id": "insp_01",
        "machine_group": "inspection",
        "start_h": 258.19,
        "end_h": 261.59,
        "setup_time_h": 0.42,
        "is_batch": false,
        "batch_id": null,
        "is_rework": false
      },
      {
        "lot_id": "LOT-0006",
        "operation_id": "inspect_1",
        "step_index": 4,
        "machine_id": "insp_01",
        "machine_group": "inspection",
        "start_h": 261.59,
        "end_h": 268.08,
        "setup_time_h": 0.33,
        "is_batch": false,
        "batch_id": null,
        "is_rework": false
      },
      {
        "lot_id": "LOT-0004",
        "operation_id": "clean_2",
        "step_index": 6,
        "machine_id": "clea_01",
        "machine_group": "cleaning",
        "start_h": 247.86,
        "end_h": 254.11,
        "setup_time_h": 0.0,
        "is_batch": true,
        "batch_id": "B-cleaning-247",
        "is_rework": false
      },
      {
        "lot_id": "LOT-0018",
        "operation_id": "deposit_1",
        "step_index": 5,
        "machine_id": "depo_01",
        "machine_group": "deposition",
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        "end_h": 204.16,
        "setup_time_h": 0.88,
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        "batch_id": null,
        "is_rework": false
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      {
        "lot_id": "LOT-0012",
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        "step_index": 5,
        "machine_id": "depo_01",
        "machine_group": "deposition",
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        "end_h": 212.27,
        "setup_time_h": 0.0,
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        "batch_id": null,
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      },
      {
        "lot_id": "LOT-0017",
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        "step_index": 2,
        "machine_id": "clea_01",
        "machine_group": "cleaning",
        "start_h": 265.98,
        "end_h": 271.49,
        "setup_time_h": 0.32,
        "is_batch": true,
        "batch_id": "B-cleaning-265",
        "is_rework": false
      },
      {
        "lot_id": "LOT-0021",
        "operation_id": "inspect_1",
        "step_index": 4,
        "machine_id": "insp_01",
        "machine_group": "inspection",
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        "end_h": 273.92,
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      {
        "lot_id": "LOT-0016",
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        "machine_id": "insp_01",
        "machine_group": "inspection",
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        "lot_id": "LOT-0007",
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        "machine_id": "depo_01",
        "machine_group": "deposition",
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        "end_h": 218.16,
        "setup_time_h": 0.5,
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        "batch_id": null,
        "is_rework": true
      },
      {
        "lot_id": "LOT-0008",
        "operation_id": "deposit_1",
        "step_index": 5,
        "machine_id": "depo_01",
        "machine_group": "deposition",
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        "end_h": 225.3,
        "setup_time_h": 0.54,
        "is_batch": false,
        "batch_id": null,
        "is_rework": false
      },
      {
        "lot_id": "LOT-0003",
        "operation_id": "inspect_1",
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        "machine_id": "insp_01",
        "machine_group": "inspection",
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        "setup_time_h": 0.39,
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      {
        "lot_id": "LOT-0014",
        "operation_id": "inspect_1",
        "step_index": 4,
        "machine_id": "insp_01",
        "machine_group": "inspection",
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        "setup_time_h": 0.35,
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      {
        "lot_id": "LOT-0015",
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        "machine_id": "clea_01",
        "machine_group": "cleaning",
        "start_h": 271.49,
        "end_h": 278.64,
        "setup_time_h": 0.75,
        "is_batch": true,
        "batch_id": "B-cleaning-271",
        "is_rework": false
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      {
        "lot_id": "LOT-0019",
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        "step_index": 5,
        "machine_id": "depo_01",
        "machine_group": "deposition",
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        "setup_time_h": 1.07,
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      {
        "lot_id": "LOT-0013",
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        "machine_id": "depo_01",
        "machine_group": "deposition",
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      {
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        "machine_id": "depo_01",
        "machine_group": "deposition",
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        "machine_id": "depo_01",
        "machine_group": "deposition",
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        "operation_id": "deposit_1",
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        "machine_id": "depo_01",
        "machine_group": "deposition",
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        "setup_time_h": 0.0,
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        "machine_id": "clea_01",
        "machine_group": "cleaning",
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        "is_batch": true,
        "batch_id": "B-cleaning-278",
        "is_rework": false
      },
      {
        "lot_id": "LOT-0002",
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        "machine_id": "lith_01",
        "machine_group": "lithography",
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        "setup_time_h": 0.0,
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        "machine_id": "depo_01",
        "machine_group": "deposition",
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        "setup_time_h": 0.0,
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      },
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        "operation_id": "deposit_1",
        "step_index": 5,
        "machine_id": "depo_01",
        "machine_group": "deposition",
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        "setup_time_h": 1.19,
        "is_batch": false,
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        "is_rework": false
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        "lot_id": "LOT-0018",
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        "machine_id": "clea_01",
        "machine_group": "cleaning",
        "start_h": 284.61,
        "end_h": 288.7,
        "setup_time_h": 0.0,
        "is_batch": true,
        "batch_id": "B-cleaning-284",
        "is_rework": false
      },
      {
        "lot_id": "LOT-0012",
        "operation_id": "clean_2",
        "step_index": 6,
        "machine_id": "clea_01",
        "machine_group": "cleaning",
        "start_h": 288.7,
        "end_h": 293.77,
        "setup_time_h": 0.57,
        "is_batch": true,
        "batch_id": "B-cleaning-288",
        "is_rework": false
      },
      {
        "lot_id": "LOT-0017",
        "operation_id": "litho_2",
        "step_index": 3,
        "machine_id": "lith_01",
        "machine_group": "lithography",
        "start_h": 284.45,
        "end_h": 290.91,
        "setup_time_h": 1.12,
        "is_batch": false,
        "batch_id": null,
        "is_rework": false
      },
      {
        "lot_id": "LOT-0021",
        "operation_id": "deposit_1",
        "step_index": 5,
        "machine_id": "depo_01",
        "machine_group": "deposition",
        "start_h": 273.92,
        "end_h": 278.34,
        "setup_time_h": 1.13,
        "is_batch": false,
        "batch_id": null,
        "is_rework": false
      },
      {
        "lot_id": "LOT-0016",
        "operation_id": "deposit_1",
        "step_index": 5,
        "machine_id": "depo_01",
        "machine_group": "deposition",
        "start_h": 279.69,
        "end_h": 284.59,
        "setup_time_h": 0.52,
        "is_batch": false,
        "batch_id": null,
        "is_rework": false
      },
      {
        "lot_id": "LOT-0007",
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        "machine_id": "insp_01",
        "machine_group": "inspection",
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        "setup_time_h": 0.9,
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        "is_rework": false
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      {
        "lot_id": "LOT-0008",
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        "machine_id": "clea_01",
        "machine_group": "cleaning",
        "start_h": 293.77,
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        "setup_time_h": 0.0,
        "is_batch": true,
        "batch_id": "B-cleaning-293",
        "is_rework": false
      },
      {
        "lot_id": "LOT-0003",
        "operation_id": "litho_2",
        "step_index": 3,
        "machine_id": "lith_01",
        "machine_group": "lithography",
        "start_h": 290.91,
        "end_h": 295.12,
        "setup_time_h": 0.0,
        "is_batch": false,
        "batch_id": null,
        "is_rework": false
      },
      {
        "lot_id": "LOT-0014",
        "operation_id": "deposit_1",
        "step_index": 5,
        "machine_id": "depo_01",
        "machine_group": "deposition",
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        "setup_time_h": 0.48,
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      },
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        "lot_id": "LOT-0019",
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        "machine_id": "clea_01",
        "machine_group": "cleaning",
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        "setup_time_h": 0.42,
        "is_batch": true,
        "batch_id": "B-cleaning-297",
        "is_rework": false
      },
      {
        "lot_id": "LOT-0013",
        "operation_id": "clean_2",
        "step_index": 6,
        "machine_id": "clea_01",
        "machine_group": "cleaning",
        "start_h": 303.2,
        "end_h": 308.63,
        "setup_time_h": 0.0,
        "is_batch": true,
        "batch_id": "B-cleaning-303",
        "is_rework": false
      },
      {
        "lot_id": "LOT-0011",
        "operation_id": "clean_2",
        "step_index": 6,
        "machine_id": "clea_01",
        "machine_group": "cleaning",
        "start_h": 308.63,
        "end_h": 313.41,
        "setup_time_h": 0.53,
        "is_batch": true,
        "batch_id": "B-cleaning-308",
        "is_rework": false
      },
      {
        "lot_id": "LOT-0005",
        "operation_id": "clean_2",
        "step_index": 6,
        "machine_id": "clea_01",
        "machine_group": "cleaning",
        "start_h": 313.41,
        "end_h": 318.56,
        "setup_time_h": 1.18,
        "is_batch": true,
        "batch_id": "B-cleaning-313",
        "is_rework": false
      },
      {
        "lot_id": "LOT-0001",
        "operation_id": "clean_2",
        "step_index": 6,
        "machine_id": "clea_01",
        "machine_group": "cleaning",
        "start_h": 318.56,
        "end_h": 323.34,
        "setup_time_h": 0.71,
        "is_batch": true,
        "batch_id": "B-cleaning-318",
        "is_rework": false
      },
      {
        "lot_id": "LOT-0002",
        "operation_id": "inspect_1",
        "step_index": 4,
        "machine_id": "insp_01",
        "machine_group": "inspection",
        "start_h": 294.68,
        "end_h": 301.66,
        "setup_time_h": 0.94,
        "is_batch": false,
        "batch_id": null,
        "is_rework": false
      },
      {
        "lot_id": "LOT-0009",
        "operation_id": "clean_2",
        "step_index": 6,
        "machine_id": "clea_01",
        "machine_group": "cleaning",
        "start_h": 323.34,
        "end_h": 330.66,
        "setup_time_h": 0.72,
        "is_batch": true,
        "batch_id": "B-cleaning-323",
        "is_rework": false
      },
      {
        "lot_id": "LOT-0006",
        "operation_id": "clean_2",
        "step_index": 6,
        "machine_id": "clea_01",
        "machine_group": "cleaning",
        "start_h": 330.66,
        "end_h": 333.41,
        "setup_time_h": 0.0,
        "is_batch": true,
        "batch_id": "B-cleaning-330",
        "is_rework": false
      },
      {
        "lot_id": "LOT-0017",
        "operation_id": "inspect_1",
        "step_index": 4,
        "machine_id": "insp_01",
        "machine_group": "inspection",
        "start_h": 301.66,
        "end_h": 305.96,
        "setup_time_h": 0.5,
        "is_batch": false,
        "batch_id": null,
        "is_rework": false
      },
      {
        "lot_id": "LOT-0021",
        "operation_id": "clean_2",
        "step_index": 6,
        "machine_id": "clea_01",
        "machine_group": "cleaning",
        "start_h": 333.41,
        "end_h": 338.99,
        "setup_time_h": 0.97,
        "is_batch": true,
        "batch_id": "B-cleaning-333",
        "is_rework": false
      },
      {
        "lot_id": "LOT-0016",
        "operation_id": "clean_2",
        "step_index": 6,
        "machine_id": "clea_01",
        "machine_group": "cleaning",
        "start_h": 338.99,
        "end_h": 343.11,
        "setup_time_h": 0.86,
        "is_batch": true,
        "batch_id": "B-cleaning-338",
        "is_rework": false
      },
      {
        "lot_id": "LOT-0007",
        "operation_id": "deposit_1",
        "step_index": 5,
        "machine_id": "depo_01",
        "machine_group": "deposition",
        "start_h": 296.24,
        "end_h": 302.13,
        "setup_time_h": 0.5,
        "is_batch": false,
        "batch_id": null,
        "is_rework": false
      },
      {
        "lot_id": "LOT-0003",
        "operation_id": "inspect_1",
        "step_index": 4,
        "machine_id": "insp_01",
        "machine_group": "inspection",
        "start_h": 305.96,
        "end_h": 312.14,
        "setup_time_h": 0.39,
        "is_batch": false,
        "batch_id": null,
        "is_rework": false
      },
      {
        "lot_id": "LOT-0014",
        "operation_id": "clean_2",
        "step_index": 6,
        "machine_id": "clea_01",
        "machine_group": "cleaning",
        "start_h": 343.11,
        "end_h": 348.93,
        "setup_time_h": 1.02,
        "is_batch": true,
        "batch_id": "B-cleaning-343",
        "is_rework": false
      },
      {
        "lot_id": "LOT-0002",
        "operation_id": "deposit_1",
        "step_index": 5,
        "machine_id": "depo_01",
        "machine_group": "deposition",
        "start_h": 302.13,
        "end_h": 307.08,
        "setup_time_h": 0.71,
        "is_batch": false,
        "batch_id": null,
        "is_rework": false
      },
      {
        "lot_id": "LOT-0017",
        "operation_id": "deposit_1",
        "step_index": 5,
        "machine_id": "depo_01",
        "machine_group": "deposition",
        "start_h": 307.08,
        "end_h": 313.73,
        "setup_time_h": 0.87,
        "is_batch": false,
        "batch_id": null,
        "is_rework": false
      },
      {
        "lot_id": "LOT-0007",
        "operation_id": "clean_2",
        "step_index": 6,
        "machine_id": "clea_01",
        "machine_group": "cleaning",
        "start_h": 348.93,
        "end_h": 356.02,
        "setup_time_h": 0.71,
        "is_batch": true,
        "batch_id": "B-cleaning-348",
        "is_rework": false
      },
      {
        "lot_id": "LOT-0003",
        "operation_id": "deposit_1",
        "step_index": 5,
        "machine_id": "depo_01",
        "machine_group": "deposition",
        "start_h": 313.73,
        "end_h": 319.92,
        "setup_time_h": 0.0,
        "is_batch": false,
        "batch_id": null,
        "is_rework": false
      },
      {
        "lot_id": "LOT-0002",
        "operation_id": "clean_2",
        "step_index": 6,
        "machine_id": "clea_01",
        "machine_group": "cleaning",
        "start_h": 356.02,
        "end_h": 360.86,
        "setup_time_h": 0.31,
        "is_batch": true,
        "batch_id": "B-cleaning-356",
        "is_rework": false
      },
      {
        "lot_id": "LOT-0017",
        "operation_id": "clean_2",
        "step_index": 6,
        "machine_id": "clea_01",
        "machine_group": "cleaning",
        "start_h": 360.86,
        "end_h": 367.3,
        "setup_time_h": 0.96,
        "is_batch": true,
        "batch_id": "B-cleaning-360",
        "is_rework": false
      },
      {
        "lot_id": "LOT-0003",
        "operation_id": "clean_2",
        "step_index": 6,
        "machine_id": "clea_01",
        "machine_group": "cleaning",
        "start_h": 367.3,
        "end_h": 374.03,
        "setup_time_h": 1.19,
        "is_batch": true,
        "batch_id": "B-cleaning-367",
        "is_rework": false
      }
    ],
    "wip_snapshots": [
      {
        "stage": "lithography",
        "wip_count": 7,
        "wip_cap": 7,
        "queue_time_h": 73.53
      },
      {
        "stage": "etching",
        "wip_count": 7,
        "wip_cap": 7,
        "queue_time_h": 14.53
      },
      {
        "stage": "cleaning",
        "wip_count": 7,
        "wip_cap": 7,
        "queue_time_h": 40.41
      },
      {
        "stage": "inspection",
        "wip_count": 7,
        "wip_cap": 7,
        "queue_time_h": 12.99
      },
      {
        "stage": "deposition",
        "wip_count": 4,
        "wip_cap": 7,
        "queue_time_h": 1.64
      }
    ],
    "bottleneck_insights": [
      {
        "stage": "lithography (reentrant pass)",
        "constraint_type": "qualification",
        "severity_score": 0.85,
        "explanation": "Primary delay driver is NOT aggregate lithography capacity. Only 2 of 4 lithography tools are qualified for reentrant logic products at step 4. Lots queue waiting for qualified tools while other lithography machines remain underutilized.",
        "recommended_action": "Qualify additional lithography tools for logic_7nm reentrant passes, or temporarily dedicate one tool to reentrant lots to relieve step-4 WIP buildup."
      },
      {
        "stage": "cleaning",
        "constraint_type": "batch_wip_limit",
        "severity_score": 0.72,
        "explanation": "Cleaning WIP at 7/7 \u2014 batch machine starvation risk on reentrant cleaning pass.",
        "recommended_action": "Batch compatible lots at cleaning or increase batch chamber throughput."
      }
    ],
    "metrics": {
      "mean_cycle_time_h": 218.51,
      "p95_cycle_time_h": 246.69,
      "throughput_lots_per_week": 9.88,
      "avg_wip": 12.85,
      "on_time_delivery_pct": 0.0,
      "machine_utilization_pct": 46.9,
      "total_setup_h": 79.46,
      "num_reschedules": 0,
      "schedule_stability_score": 60.3,
      "yield_pct": 95.8,
      "tardiness_h": 4406.53
    },
    "notes": [
      "Rework triggered for LOT-0015 at etch_1",
      "Rework triggered for LOT-0022 at etch_1",
      "Rework triggered for LOT-0010 at litho_2",
      "Rework triggered for LOT-0002 at litho_2",
      "Rework triggered for LOT-0017 at litho_2",
      "Rework triggered for LOT-0007 at deposit_1",
      "Rework triggered for LOT-0003 at inspect_1",
      "Dispatching rule: atc_dispatch \u2014 scheduled 168 operations."
    ]
  }
}