VR2R-0349_r1

VR2R-0349

① SA Source

• Source: 開啟完整 SA 文章
• Section: PCB Materials Upgrade and Area Growth
• Line hint: 302

Context Before

The glass fiber cloth upgrade aims to reduce the dielectric constant of CCL. Beside glass fiber cloth, resin is also a key factor contributing to dielectric constant.

Evidence

To achieve a desirable dielectric constant, the CCL makers have their unique recipes to their formulation of the two dielectric materials in the CCL.

Context After

Currently, debate around the CCL spec is around the adoption of Quartz cloth (Q glass).

② Atomic Claim

為了達到理想的 dielectric constant，各家 CCL makers 對 CCL 中兩種 dielectric materials 的配方都有自己的 recipe。

• Epistemic Mode: ASSERTED
• Mapping Status: COMPLETE

③ Semantic Frame

{
  "attribute": "DIELECTRIC_MATERIAL_FORMULATION",
  "context_nodes": [],
  "entity": {
    "id": "04_knowledge_base/Copper-clad laminate",
    "label": "CCL"
  },
  "frame_type": "ATTRIBUTE",
  "qualifiers": {
    "condition_text": null,
    "numeric_mentions": [
      "two"
    ],
    "temporal_mentions": []
  },
  "value": {
    "numeric_mentions": [
      "two"
    ],
    "value_text": "CCL makers use proprietary formulations of the two dielectric materials to target desired dielectric constant."
  }
}

④ Canonical Entity Mapping

Role	Surface Label	Canonical Target
entity	CCL	04_knowledge_base/Copper-clad laminate

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。