VR2R-0325
① SA Source
- Source: 開啟完整 SA 文章
- Section:
PCB vs Flyover Cables - Line hint:
288
Context Before
For VR NVL72, the design has turned toward cableless given the higher density and manufacturing complexity of AI server.
Evidence
The cost saved on improving higher manufacturing yields and assembly time reduction more than offsets the higher cost of the upgraded PCB materials.
Context After
It is critical that all the factors that contribute towards insertion loss in the PCB are mitigated, hence PCB material upgrades are necessary for VR NVL72.
② Atomic Claim
提高 manufacturing yield 與縮短 assembly time 所節省的成本，足以超過升級 PCB materials 帶來的額外成本。
- Epistemic Mode:
ASSERTED - Mapping Status:
PARTIAL
③ Semantic Frame
{
"attribute": "MATERIAL_UPGRADE_MANUFACTURING_ECONOMICS",
"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": "yield improvement and assembly-time savings more than offset the higher cost of upgraded PCB materials."
}
}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。