VR2-0114

① SA Source

Context Before

image

Source: Nvidia VR NVL72 Component BoM and Power Budget Model

Evidence

It also provides mechanical support for the package to prevent warpage

Context After

For Rubin, the heat spreader lid is a module made up of two separate lids. Beside the heat spreader lid, a stiffener is added to the package structure to provide even more mechanical support to avoid warpage. At the surface of the heat spreader lid, there will also be a layer of electroplated gold. The reason for this is to prevent corrosion from liquid metal TIM2, which is between the heat spreader lid and the cold plate.

Vera

② Atomic Claim

Heat spreader lid 也提供 mechanical support,以避免 package 發生 warpage

  • Epistemic Mode: ASSERTED
  • Mapping Status: COMPLETE

③ Semantic Frame

{
  "attribute": "PORT_COUNT",
  "context_nodes": [
    {
      "id": "04_knowledge_base/Warpage",
      "label": "warpage"
    }
  ],
  "entity": {
    "id": "04_knowledge_base/封裝",
    "label": "package"
  },
  "frame_type": "ATTRIBUTE",
  "qualifiers": {
    "condition_text": null,
    "numeric_mentions": [],
    "temporal_mentions": []
  },
  "value": {
    "numeric_mentions": [],
    "value_text": "Heat spreader lid 也提供 mechanical support,以避免 package 發生 warpage。"
  }
}

④ Canonical Entity Mapping

RoleSurface LabelCanonical Target
entitypackage04_knowledge_base/封裝
context_0warpageWarpage

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。