{ "schema": "semiagora.layout-rc-delay-evidence-ladder.v1", "version": "2026-08-21-v79", "execution_mode": "precomputed_browser_csv_replay_only", "source_run": { "run_id": "20260821_131318", "evidence_path": "07_assets/factory_lab/daily/2026-08-21/20260821_131318/", "prior_triage": "08_references/semiagora_simulation_atlas/DAILY_CONTENT_TRIAGE_2026-08-20_221239.md" }, "counts": { "rows": 3072, "design_contexts": 4, "topologies": 4, "layer_classes": 3, "route_styles": 4, "fanout_load_classes": 4, "checkpoints": 4, "liveServerRuns": 0 }, "summary": { "evidence_state_counts": { "estimate_only": 2304, "claim_ready_teaching_row": 237, "timing_risk_review": 490, "needs_boundary_note": 41 }, "highest_delay_rows": [ { "case_id": "RC001-2176", "design_context": "sram_bitline_sense_proxy", "path_topology": "detoured_channel", "routing_layer_class": "local_m1_like", "route_style": "congestion_detour", "fanout_load_class": "clock_or_reset_fanout", "checkpoint_stage": "pex_timing_proxy", "case_index": 2176, "wire_length_um_proxy": "760.00", "r_wire_ohm_proxy": "151.110", "c_wire_ff_proxy": "22.352", "coupling_ff_proxy": "4.309", "total_load_ff_proxy": "66.722", "input_slew_ps_proxy": "189.24", "elmore_delay_ps_proxy": "581.32", "buffer_count_hint_proxy": 5, "setup_slack_delta_ps_proxy": "-388.52", "hold_slack_delta_ps_proxy": "36.50", "slew_risk_proxy": "0.980", "crosstalk_risk_proxy": "0.522", "evidence_confidence": "0.661", "evidence_state": "timing_risk_review", "next_safe_check": "attach_spef_sta_boundary_before_claim" }, { "case_id": "RC001-2172", "design_context": "sram_bitline_sense_proxy", "path_topology": "detoured_channel", "routing_layer_class": "local_m1_like", "route_style": "congestion_detour", "fanout_load_class": "sram_peripheral", "checkpoint_stage": "pex_timing_proxy", "case_index": 2172, "wire_length_um_proxy": "760.00", "r_wire_ohm_proxy": "151.110", "c_wire_ff_proxy": "24.152", "coupling_ff_proxy": "4.309", "total_load_ff_proxy": "78.522", "input_slew_ps_proxy": "187.47", "elmore_delay_ps_proxy": "566.27", "buffer_count_hint_proxy": 5, "setup_slack_delta_ps_proxy": "-370.67", "hold_slack_delta_ps_proxy": "36.50", "slew_risk_proxy": "0.980", "crosstalk_risk_proxy": "0.522", "evidence_confidence": "0.661", "evidence_state": "timing_risk_review", "next_safe_check": "attach_spef_sta_boundary_before_claim" }, { "case_id": "RC001-2304", "design_context": "sram_bitline_sense_proxy", "path_topology": "detoured_channel", "routing_layer_class": "upper_m4_like", "route_style": "congestion_detour", "fanout_load_class": "clock_or_reset_fanout", "checkpoint_stage": "pex_timing_proxy", "case_index": 2304, "wire_length_um_proxy": "760.00", "r_wire_ohm_proxy": "58.770", "c_wire_ff_proxy": "30.203", "coupling_ff_proxy": "7.798", "total_load_ff_proxy": "76.492", "input_slew_ps_proxy": "177.23", "elmore_delay_ps_proxy": "560.89", "buffer_count_hint_proxy": 5, "setup_slack_delta_ps_proxy": "-368.09", "hold_slack_delta_ps_proxy": "36.50", "slew_risk_proxy": "0.980", "crosstalk_risk_proxy": "0.813", "evidence_confidence": "0.649", "evidence_state": "timing_risk_review", "next_safe_check": "attach_spef_sta_boundary_before_claim" }, { "case_id": "RC001-2240", "design_context": "sram_bitline_sense_proxy", "path_topology": "detoured_channel", "routing_layer_class": "intermediate_m2_m3_like", "route_style": "congestion_detour", "fanout_load_class": "clock_or_reset_fanout", "checkpoint_stage": "pex_timing_proxy", "case_index": 2240, "wire_length_um_proxy": "760.00", "r_wire_ohm_proxy": "96.732", "c_wire_ff_proxy": "24.835", "coupling_ff_proxy": "5.746", "total_load_ff_proxy": "69.995", "input_slew_ps_proxy": "178.73", "elmore_delay_ps_proxy": "556.18", "buffer_count_hint_proxy": 5, "setup_slack_delta_ps_proxy": "-363.38", "hold_slack_delta_ps_proxy": "36.50", "slew_risk_proxy": "0.980", "crosstalk_risk_proxy": "0.642", "evidence_confidence": "0.656", "evidence_state": "timing_risk_review", "next_safe_check": "attach_spef_sta_boundary_before_claim" }, { "case_id": "RC001-2288", "design_context": "sram_bitline_sense_proxy", "path_topology": "detoured_channel", "routing_layer_class": "upper_m4_like", "route_style": "shielded_neighbor", "fanout_load_class": "clock_or_reset_fanout", "checkpoint_stage": "pex_timing_proxy", "case_index": 2288, "wire_length_um_proxy": "760.00", "r_wire_ohm_proxy": "42.696", "c_wire_ff_proxy": "35.687", "coupling_ff_proxy": "3.026", "total_load_ff_proxy": "79.351", "input_slew_ps_proxy": "173.79", "elmore_delay_ps_proxy": "552.77", "buffer_count_hint_proxy": 5, "setup_slack_delta_ps_proxy": "-359.97", "hold_slack_delta_ps_proxy": "36.50", "slew_risk_proxy": "0.980", "crosstalk_risk_proxy": "0.225", "evidence_confidence": "0.703", "evidence_state": "timing_risk_review", "next_safe_check": "attach_spef_sta_boundary_before_claim" }, { "case_id": "RC001-2160", "design_context": "sram_bitline_sense_proxy", "path_topology": "detoured_channel", "routing_layer_class": "local_m1_like", "route_style": "shielded_neighbor", "fanout_load_class": "clock_or_reset_fanout", "checkpoint_stage": "pex_timing_proxy", "case_index": 2160, "wire_length_um_proxy": "760.00", "r_wire_ohm_proxy": "102.888", "c_wire_ff_proxy": "26.239", "coupling_ff_proxy": "1.672", "total_load_ff_proxy": "69.158", "input_slew_ps_proxy": "177.17", "elmore_delay_ps_proxy": "548.56", "buffer_count_hint_proxy": 5, "setup_slack_delta_ps_proxy": "-355.76", "hold_slack_delta_ps_proxy": "36.50", "slew_risk_proxy": "0.980", "crosstalk_risk_proxy": "0.113", "evidence_confidence": "0.707", "evidence_state": "timing_risk_review", "next_safe_check": "attach_spef_sta_boundary_before_claim" }, { "case_id": "RC001-2944", "design_context": "counter_clock_spine", "path_topology": "detoured_channel", "routing_layer_class": "local_m1_like", "route_style": "congestion_detour", "fanout_load_class": "clock_or_reset_fanout", "checkpoint_stage": "pex_timing_proxy", "case_index": 2944, "wire_length_um_proxy": "760.00", "r_wire_ohm_proxy": "151.110", "c_wire_ff_proxy": "22.352", "coupling_ff_proxy": "4.309", "total_load_ff_proxy": "55.722", "input_slew_ps_proxy": "174.66", "elmore_delay_ps_proxy": "548.28", "buffer_count_hint_proxy": 4, "setup_slack_delta_ps_proxy": "-412.28", "hold_slack_delta_ps_proxy": "26.00", "slew_risk_proxy": "0.980", "crosstalk_risk_proxy": "0.522", "evidence_confidence": "0.661", "evidence_state": "timing_risk_review", "next_safe_check": "attach_spef_sta_boundary_before_claim" }, { "case_id": "RC001-2940", "design_context": "counter_clock_spine", "path_topology": "detoured_channel", "routing_layer_class": "local_m1_like", "route_style": "congestion_detour", "fanout_load_class": "sram_peripheral", "checkpoint_stage": "pex_timing_proxy", "case_index": 2940, "wire_length_um_proxy": "760.00", "r_wire_ohm_proxy": "151.110", "c_wire_ff_proxy": "24.152", "coupling_ff_proxy": "4.309", "total_load_ff_proxy": "67.522", "input_slew_ps_proxy": "176.61", "elmore_delay_ps_proxy": "547.56", "buffer_count_hint_proxy": 5, "setup_slack_delta_ps_proxy": "-411.96", "hold_slack_delta_ps_proxy": "24.50", "slew_risk_proxy": "0.980", "crosstalk_risk_proxy": "0.522", "evidence_confidence": "0.661", "evidence_state": "timing_risk_review", "next_safe_check": "attach_spef_sta_boundary_before_claim" }, { "case_id": "RC001-2224", "design_context": "sram_bitline_sense_proxy", "path_topology": "detoured_channel", "routing_layer_class": "intermediate_m2_m3_like", "route_style": "shielded_neighbor", "fanout_load_class": "clock_or_reset_fanout", "checkpoint_stage": "pex_timing_proxy", "case_index": 2224, "wire_length_um_proxy": "760.00", "r_wire_ohm_proxy": "67.442", "c_wire_ff_proxy": "29.227", "coupling_ff_proxy": "2.230", "total_load_ff_proxy": "72.453", "input_slew_ps_proxy": "171.23", "elmore_delay_ps_proxy": "536.03", "buffer_count_hint_proxy": 5, "setup_slack_delta_ps_proxy": "-343.23", "hold_slack_delta_ps_proxy": "36.50", "slew_risk_proxy": "0.980", "crosstalk_risk_proxy": "0.159", "evidence_confidence": "0.705", "evidence_state": "timing_risk_review", "next_safe_check": "attach_spef_sta_boundary_before_claim" }, { "case_id": "RC001-2236", "design_context": "sram_bitline_sense_proxy", "path_topology": "detoured_channel", "routing_layer_class": "intermediate_m2_m3_like", "route_style": "congestion_detour", "fanout_load_class": "sram_peripheral", "checkpoint_stage": "pex_timing_proxy", "case_index": 2236, "wire_length_um_proxy": "760.00", "r_wire_ohm_proxy": "96.732", "c_wire_ff_proxy": "26.635", "coupling_ff_proxy": "5.746", "total_load_ff_proxy": "81.795", "input_slew_ps_proxy": "174.48", "elmore_delay_ps_proxy": "534.56", "buffer_count_hint_proxy": 5, "setup_slack_delta_ps_proxy": "-338.96", "hold_slack_delta_ps_proxy": "36.50", "slew_risk_proxy": "0.980", "crosstalk_risk_proxy": "0.642", "evidence_confidence": "0.656", "evidence_state": "timing_risk_review", "next_safe_check": "attach_spef_sta_boundary_before_claim" } ], "tightest_setup_rows": [ { "case_id": "RC001-2944", "design_context": "counter_clock_spine", "path_topology": "detoured_channel", "routing_layer_class": "local_m1_like", "route_style": "congestion_detour", "fanout_load_class": "clock_or_reset_fanout", "checkpoint_stage": "pex_timing_proxy", "case_index": 2944, "wire_length_um_proxy": "760.00", "r_wire_ohm_proxy": "151.110", "c_wire_ff_proxy": "22.352", "coupling_ff_proxy": "4.309", "total_load_ff_proxy": "55.722", "input_slew_ps_proxy": "174.66", "elmore_delay_ps_proxy": "548.28", "buffer_count_hint_proxy": 4, "setup_slack_delta_ps_proxy": "-412.28", "hold_slack_delta_ps_proxy": "26.00", "slew_risk_proxy": "0.980", "crosstalk_risk_proxy": "0.522", "evidence_confidence": "0.661", "evidence_state": "timing_risk_review", "next_safe_check": "attach_spef_sta_boundary_before_claim" }, { "case_id": "RC001-2940", "design_context": "counter_clock_spine", "path_topology": "detoured_channel", "routing_layer_class": "local_m1_like", "route_style": "congestion_detour", "fanout_load_class": "sram_peripheral", "checkpoint_stage": "pex_timing_proxy", "case_index": 2940, "wire_length_um_proxy": "760.00", "r_wire_ohm_proxy": "151.110", "c_wire_ff_proxy": "24.152", "coupling_ff_proxy": "4.309", "total_load_ff_proxy": "67.522", "input_slew_ps_proxy": "176.61", "elmore_delay_ps_proxy": "547.56", "buffer_count_hint_proxy": 5, "setup_slack_delta_ps_proxy": "-411.96", "hold_slack_delta_ps_proxy": "24.50", "slew_risk_proxy": "0.980", "crosstalk_risk_proxy": "0.522", "evidence_confidence": "0.661", "evidence_state": "timing_risk_review", "next_safe_check": "attach_spef_sta_boundary_before_claim" }, { "case_id": "RC001-3072", "design_context": "counter_clock_spine", "path_topology": "detoured_channel", "routing_layer_class": "upper_m4_like", "route_style": "congestion_detour", "fanout_load_class": "clock_or_reset_fanout", "checkpoint_stage": "pex_timing_proxy", "case_index": 3072, "wire_length_um_proxy": "760.00", "r_wire_ohm_proxy": "58.770", "c_wire_ff_proxy": "30.203", "coupling_ff_proxy": "7.798", "total_load_ff_proxy": "65.492", "input_slew_ps_proxy": "164.96", "elmore_delay_ps_proxy": "532.07", "buffer_count_hint_proxy": 5, "setup_slack_delta_ps_proxy": "-399.27", "hold_slack_delta_ps_proxy": "24.50", "slew_risk_proxy": "0.980", "crosstalk_risk_proxy": "0.813", "evidence_confidence": "0.649", "evidence_state": "timing_risk_review", "next_safe_check": "attach_spef_sta_boundary_before_claim" }, { "case_id": "RC001-3056", "design_context": "counter_clock_spine", "path_topology": "detoured_channel", "routing_layer_class": "upper_m4_like", "route_style": "shielded_neighbor", "fanout_load_class": "clock_or_reset_fanout", "checkpoint_stage": "pex_timing_proxy", "case_index": 3056, "wire_length_um_proxy": "760.00", "r_wire_ohm_proxy": "42.696", "c_wire_ff_proxy": "35.687", "coupling_ff_proxy": "3.026", "total_load_ff_proxy": "68.351", "input_slew_ps_proxy": "162.05", "elmore_delay_ps_proxy": "525.18", "buffer_count_hint_proxy": 5, "setup_slack_delta_ps_proxy": "-392.38", "hold_slack_delta_ps_proxy": "24.50", "slew_risk_proxy": "0.980", "crosstalk_risk_proxy": "0.225", "evidence_confidence": "0.703", "evidence_state": "timing_risk_review", "next_safe_check": "attach_spef_sta_boundary_before_claim" }, { "case_id": "RC001-3008", "design_context": "counter_clock_spine", "path_topology": "detoured_channel", "routing_layer_class": "intermediate_m2_m3_like", "route_style": "congestion_detour", "fanout_load_class": "clock_or_reset_fanout", "checkpoint_stage": "pex_timing_proxy", "case_index": 3008, "wire_length_um_proxy": "760.00", "r_wire_ohm_proxy": "96.732", "c_wire_ff_proxy": "24.835", "coupling_ff_proxy": "5.746", "total_load_ff_proxy": "58.995", "input_slew_ps_proxy": "165.23", "elmore_delay_ps_proxy": "524.55", "buffer_count_hint_proxy": 4, "setup_slack_delta_ps_proxy": "-388.55", "hold_slack_delta_ps_proxy": "26.00", "slew_risk_proxy": "0.980", "crosstalk_risk_proxy": "0.642", "evidence_confidence": "0.656", "evidence_state": "timing_risk_review", "next_safe_check": "attach_spef_sta_boundary_before_claim" }, { "case_id": "RC001-2176", "design_context": "sram_bitline_sense_proxy", "path_topology": "detoured_channel", "routing_layer_class": "local_m1_like", "route_style": "congestion_detour", "fanout_load_class": "clock_or_reset_fanout", "checkpoint_stage": "pex_timing_proxy", "case_index": 2176, "wire_length_um_proxy": "760.00", "r_wire_ohm_proxy": "151.110", "c_wire_ff_proxy": "22.352", "coupling_ff_proxy": "4.309", "total_load_ff_proxy": "66.722", "input_slew_ps_proxy": "189.24", "elmore_delay_ps_proxy": "581.32", "buffer_count_hint_proxy": 5, "setup_slack_delta_ps_proxy": "-388.52", "hold_slack_delta_ps_proxy": "36.50", "slew_risk_proxy": "0.980", "crosstalk_risk_proxy": "0.522", "evidence_confidence": "0.661", "evidence_state": "timing_risk_review", "next_safe_check": "attach_spef_sta_boundary_before_claim" }, { "case_id": "RC001-3004", "design_context": "counter_clock_spine", "path_topology": "detoured_channel", "routing_layer_class": "intermediate_m2_m3_like", "route_style": "congestion_detour", "fanout_load_class": "sram_peripheral", "checkpoint_stage": "pex_timing_proxy", "case_index": 3004, "wire_length_um_proxy": "760.00", "r_wire_ohm_proxy": "96.732", "c_wire_ff_proxy": "26.635", "coupling_ff_proxy": "5.746", "total_load_ff_proxy": "70.795", "input_slew_ps_proxy": "164.71", "elmore_delay_ps_proxy": "517.27", "buffer_count_hint_proxy": 5, "setup_slack_delta_ps_proxy": "-381.67", "hold_slack_delta_ps_proxy": "24.50", "slew_risk_proxy": "0.980", "crosstalk_risk_proxy": "0.642", "evidence_confidence": "0.656", "evidence_state": "timing_risk_review", "next_safe_check": "attach_spef_sta_boundary_before_claim" }, { "case_id": "RC001-3068", "design_context": "counter_clock_spine", "path_topology": "detoured_channel", "routing_layer_class": "upper_m4_like", "route_style": "congestion_detour", "fanout_load_class": "sram_peripheral", "checkpoint_stage": "pex_timing_proxy", "case_index": 3068, "wire_length_um_proxy": "760.00", "r_wire_ohm_proxy": "58.770", "c_wire_ff_proxy": "32.003", "coupling_ff_proxy": "7.798", "total_load_ff_proxy": "77.292", "input_slew_ps_proxy": "161.78", "elmore_delay_ps_proxy": "516.66", "buffer_count_hint_proxy": 5, "setup_slack_delta_ps_proxy": "-381.06", "hold_slack_delta_ps_proxy": "24.50", "slew_risk_proxy": "0.980", "crosstalk_risk_proxy": "0.813", "evidence_confidence": "0.649", "evidence_state": "timing_risk_review", "next_safe_check": "attach_spef_sta_boundary_before_claim" }, { "case_id": "RC001-2928", "design_context": "counter_clock_spine", "path_topology": "detoured_channel", "routing_layer_class": "local_m1_like", "route_style": "shielded_neighbor", "fanout_load_class": "clock_or_reset_fanout", "checkpoint_stage": "pex_timing_proxy", "case_index": 2928, "wire_length_um_proxy": "760.00", "r_wire_ohm_proxy": "102.888", "c_wire_ff_proxy": "26.239", "coupling_ff_proxy": "1.672", "total_load_ff_proxy": "58.158", "input_slew_ps_proxy": "163.49", "elmore_delay_ps_proxy": "516.57", "buffer_count_hint_proxy": 4, "setup_slack_delta_ps_proxy": "-380.57", "hold_slack_delta_ps_proxy": "26.00", "slew_risk_proxy": "0.980", "crosstalk_risk_proxy": "0.113", "evidence_confidence": "0.707", "evidence_state": "timing_risk_review", "next_safe_check": "attach_spef_sta_boundary_before_claim" }, { "case_id": "RC001-2924", "design_context": "counter_clock_spine", "path_topology": "detoured_channel", "routing_layer_class": "local_m1_like", "route_style": "shielded_neighbor", "fanout_load_class": "sram_peripheral", "checkpoint_stage": "pex_timing_proxy", "case_index": 2924, "wire_length_um_proxy": "760.00", "r_wire_ohm_proxy": "102.888", "c_wire_ff_proxy": "28.039", "coupling_ff_proxy": "1.672", "total_load_ff_proxy": "69.958", "input_slew_ps_proxy": "163.35", "elmore_delay_ps_proxy": "510.42", "buffer_count_hint_proxy": 5, "setup_slack_delta_ps_proxy": "-374.82", "hold_slack_delta_ps_proxy": "24.36", "slew_risk_proxy": "0.980", "crosstalk_risk_proxy": "0.113", "evidence_confidence": "0.707", "evidence_state": "timing_risk_review", "next_safe_check": "attach_spef_sta_boundary_before_claim" } ] }, "chain_views": [ { "view": "layout", "focus": "Wire length, layer class, route style, branch factor, coupling proxy, and detour context." }, { "view": "extraction", "focus": "Rwire, Cwire, coupling capacitance, total load, and checkpoint visibility." }, { "view": "timing", "focus": "Elmore-style delay proxy, input slew proxy, setup slack delta, hold slack delta, and buffer hint." }, { "view": "evidence", "focus": "Claim state, confidence, next safe check, and public boundary before reuse in a paper or review note." } ], "public_boundary": [ "All rows are original SemiAgora teaching proxies, not real SPEF, SDF, STA, extracted netlist, layout database, or silicon data.", "No PDK file, rule deck, Liberty file, SPEF file, SDC file, GDS, DEF, tool log, report, or OpenROAD/OpenLane project is redistributed.", "The browser filters saved CSV rows only; it does not run OpenROAD, OpenLane, OpenSTA, Magic, Netgen, ngspice, SPICE, TCAD, or a server-side compiler.", "No timing closure, macro timing, SRAM compiler, tapeout readiness, foundry signoff, product, yield, or qualification claim is made.", "No account, upload, payment, comment, newsletter action, job/event workflow, public service intake, or design submission workflow is enabled." ], "methods": [ "Generate a 3072-row factorial teaching table over design context, topology, layer class, route style, load class, and checkpoint stage.", "Compute Rwire, Cwire, coupling, total load, Elmore-style delay, input slew, setup/hold slack deltas, buffer hint, risk proxies, confidence, and evidence state.", "Use official public source anchors for vocabulary and flow framing only; all visible rows, formulas, labels, and limitations are original SemiAgora teaching content." ], "limitations": [ "The RC and timing numbers are educational proxies and are not calibrated to any foundry, design kit, extracted deck, or STA corner.", "Layer classes are abstract labels, not SKY130 rule values, routing recommendations, design rules, or process guidance.", "A real report package needs owned design files, exact tool versions, PDK/license authority, extraction settings, Liberty/SPEF/SDC provenance, and design-owner review.", "No live server solver, uploaded design, equipment-control action, or arbitrary netlist execution is enabled.", "This lab teaches evidence order; it cannot decide buffer insertion, route changes, timing closure, signoff, tapeout, or production release." ], "sources": [ { "label": "OpenROAD documentation", "url": "https://openroad.readthedocs.io/en/latest/", "note": "Official project documentation anchor for digital place-and-route, parasitic extraction, and STA vocabulary; no tool run is exposed on the public page." }, { "label": "OpenROAD Flow Scripts", "url": "https://github.com/The-OpenROAD-Project/OpenROAD-flow-scripts", "note": "Official flow repository anchor for future reproducible report packages; no repository code, report, or PDK collateral is mirrored." }, { "label": "OpenLane 2 documentation", "url": "https://openlane2.readthedocs.io/en/latest/", "note": "Public flow documentation anchor for timing-closure vocabulary and report-literacy planning." }, { "label": "OpenSTA repository", "url": "https://github.com/The-OpenROAD-Project/OpenSTA", "note": "Static timing analyzer source anchor for Liberty, SDC, SPEF, timing-path, and slack vocabulary." }, { "label": "SkyWater SKY130 PDK documentation", "url": "https://skywater-pdk.readthedocs.io/en/main/", "note": "Open-PDK documentation anchor; no PDK files, rule decks, extracted netlists, or models are redistributed." }, { "label": "Magic VLSI", "url": "https://opencircuitdesign.com/magic/", "note": "Official Magic page anchoring public layout/DRC/extraction vocabulary." }, { "label": "Netgen", "url": "https://opencircuitdesign.com/netgen/", "note": "Official Netgen page anchoring LVS comparison vocabulary." } ] }