VR2R-0358_r1

VR2R-0358

① SA Source

• Source: 開啟完整 SA 文章
• Section: PCB Materials Upgrade and Area Growth
• Line hint: 306

Context Before

Within VR NVL72, Quartz is initially adopted for the Orchid board and the midplane to allow the longest distance PCIe Gen 6 signal traveling through these two boards with as little insertion loss as possible.

Evidence

However, given the cost of the Quartz cloth and the difficulty in Q cloth processing, Nvidia is currently exploring the option of downgrading back to glass fiber cloth.

Context After

The final decision is pending on the signal performance with the downgraded glass fiber cloth.

② Atomic Claim

不過考量 Quartz cloth 的成本與 Q-cloth processing 難度，Nvidia 目前正在評估降回 glass fiber cloth 的方案。

• Epistemic Mode: ASSERTED
• Mapping Status: PARTIAL

③ Semantic Frame

{
  "attribute": "EXPLORES_QUARTZ_TO_GLASS_FIBER_DOWNGRADE",
  "context_nodes": [],
  "entity": {
    "id": "02_companies/NVDA",
    "label": "Nvidia"
  },
  "frame_type": "ATTRIBUTE",
  "qualifiers": {
    "condition_text": "material names are plain text in source claim",
    "numeric_mentions": [],
    "temporal_mentions": [
      "currently"
    ]
  },
  "value": {
    "numeric_mentions": [],
    "value_text": "Nvidia is exploring downgrading from quartz cloth back to glass fiber cloth because of cost and processing difficulty."
  }
}

④ Canonical Entity Mapping

Role	Surface Label	Canonical Target
entity	Nvidia	NVDA

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。