VR2R-0312_r1

VR2R-0312

① SA Source

• Source: 開啟完整 SA 文章
• Section: PCB vs Flyover Cables
• Line hint: 280

Context Before

Geometry loss describes the insertion loss incurred from abrupt structures of the PCB traces.

Evidence

Real PCB channels include many abrupt structures, such as vias and layer swaps.

Context After

These are like bumps in a highway, and signals could reflect backward and be interrupted increasing insertion loss.

② Atomic Claim

實際的 PCB channels 含有許多 abrupt structures，例如 vias 與 layer swaps。

• Epistemic Mode: ASSERTED
• Mapping Status: COMPLETE

③ Semantic Frame

{
  "attribute": "CHANNEL_ABRUPT_STRUCTURES",
  "context_nodes": [],
  "entity": {
    "id": "04_knowledge_base/PCB",
    "label": "PCB"
  },
  "frame_type": "ATTRIBUTE",
  "qualifiers": {
    "condition_text": null,
    "numeric_mentions": [],
    "temporal_mentions": []
  },
  "value": {
    "numeric_mentions": [],
    "value_text": "real PCB channels contain abrupt structures such as vias and layer swaps."
  }
}

④ Canonical Entity Mapping

Role	Surface Label	Canonical Target
entity	PCB	PCB

⑤ Human Review

請在 Properties 逐項確認：

• 原文 → Atomic Claim 是否忠實
• Atomic Claim → Semantic Frame 是否忠實
• Canonical Entity mapping 是否正確
• Epistemic mode 是否保留原文語氣
• 最後選擇 review_action

Review state

Markdown 內文不是正式 approval。只有 Apply bridge 寫入的 Decision Ledger event 才是正式決策。