VR2R-0317
① SA Source
- Source: 開啟完整 SA 文章
- Section:
PCB vs Flyover Cables - Line hint:
282
Context Before
Another factor that affects signal performance is cross-talk. Given the increase in the number of I/Os per GPU, lane density in the PCB also increases.
Evidence
Cross-talk describes the scenario where the copper traces are too close to each other and the signal from one lane affects the signal in a neighboring lane.
Context After
Some copper traces are designed for power as well. When the power lanes are too close to the signal lanes, noise from the power lanes can also modulate the signal as well.
② Atomic Claim
Cross-talk 指的是 copper traces 太靠近時，一條 lane 的 signal 會影響相鄰 lane signal 的情況。
- Epistemic Mode:
ASSERTED - Mapping Status:
PARTIAL
③ Semantic Frame
{
"frame_type": "CLAIM_ONLY",
"qualifiers": {
"condition_text": "definition claim",
"numeric_mentions": [],
"temporal_mentions": []
},
"reason": "CROSSTALK_AND_COPPER_TRACE_CONCEPTS_NOT_CANONICALIZED",
"statement": "cross-talk occurs when nearby copper traces allow one lane's signal to affect a neighboring lane."
}④ Canonical Entity Mapping
| Role | Surface Label | Canonical Target |
|---|---|---|
| — | — | — |
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。