VR2-0354
① SA Source
- Source: 開啟完整 SA 文章
- Section:
PCB Materials Upgrade and Area Growth - Line hint:
453
Context Before
Source: VR NVL72 Component BoM and Power Budget Model ↗
On the material side, CCL content upgrades from M7 to M8/M9 drives material upgrades. Copper foil is upgraded to HVLP4 across the board for the main compute and networking boards. A glass fiber cloth upgrade is necessary to reduce dielectric loss, but whether quartz cloth (Q glass) is necessary remains a debate. Below let’s discuss the materials upgrade and the key considerations behind the adoption of each material.
Evidence
Context After
Source: Nvidia VR NVL72 Component BoM and Power Budget Model ↗
② Atomic Claim
表格比較 Blackwell 與 Rubin 各主要 board 的 CCL classification 與 PCB specification。
- Epistemic Mode:
ASSERTED - Mapping Status:
PARTIAL
③ Semantic Frame
{
"comparison_expression": "表格比較 Blackwell 與 Rubin 各主要 board 的 CCL classification 與 PCB specification。",
"entities": [
{
"id": "04_knowledge_base/Blackwell",
"label": "Blackwell"
},
{
"id": "04_knowledge_base/Vera Rubin",
"label": "Rubin"
},
{
"id": "04_knowledge_base/Copper-clad laminate",
"label": "CCL"
},
{
"id": "04_knowledge_base/PCB",
"label": "PCB"
}
],
"frame_type": "COMPARISON",
"metric": "UNSPECIFIED_METRIC",
"operator": "COMPARES_WITH",
"qualifiers": {
"condition_text": null,
"numeric_mentions": [],
"temporal_mentions": []
}
}④ Canonical Entity Mapping
| Role | Surface Label | Canonical Target |
|---|---|---|
| comparison_entity_0 | Blackwell | Blackwell |
| comparison_entity_1 | Rubin | 04_knowledge_base/Vera Rubin |
| comparison_entity_2 | CCL | 04_knowledge_base/Copper-clad laminate |
| comparison_entity_3 | 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。