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SemiAI

Semi-Brain

A multimodal inference engine reasoning over charts, process context and a domain knowledge base Takes chart data, images, process metadata and domain knowledge together to produce a first-pass interpretation — and follows natural-language follow-ups along the analysis thread.

What it does

  • 01

    Multimodal first-pass interpretation

    Feeds chart data, images, spec (USL/LSL), process metadata and the domain KB into the model in one pass, returning patterns, anomalies and cause candidates in natural language.

    CD DISTRIBUTIONSEM IMAGESPEC / RECIPEUSL+METADATAtool· LITHO-3lot· N+4layer· M2KNOWLEDGE BASEMULTIMODAL ENGINEcontinuous learningNATURAL-LANGUAGE SUMMARYSUMMARYCD drift detected on M2,localized to LITHO-3PATTERNtail-shift · upper boundOUTLIERw-204 · lot N+4 · USL+ROOT-CAUSE01chuck-temp drift.9201chuck-temp drift.9202recipe rev A→B.6803EFEM particle.41
  • 02

    Conversational follow-ups along the thread

    Keeps the most recent chart, selected wafers and time range as context so 'show me → narrow it down → zoom in' chains naturally.

    SESSION CONTEXT · KEPTctxwafer · #w-204period · 7d · N..N+6layer · M2 · CDtool · LITHO-3lot · N+4..N+5liveCD distribution · allfiltered · LITHO-3LITHO-3zoom · lot N+4..N+5USLUSL+show me the CD distributionfor wafer #w-204, last 7 daysCD distribution · allnow narrow it down to justthe LITHO-3 toolfilter · tool LITHO-3zoom into lot N+4–N+5near the USL limitzoom · lot N+4..N+5MEMORY · CONTEXT ACCUMULATES1showquery only2narrowkeeps wafer · period3zoomkeeps wafer · period · tool
  • 03

    Engineer-validated, then acted on

    Engineers spend their time on validation and decisions instead of re-reading from scratch; LLM outputs always pass a logging and verification step.

    PIPELINE · LLM OUTPUT → VERIFICATION → APPLIEDLLM output · draft .json{ summary: "CD drift on M2, localized to LITHO-3", candidates: [ [01] chuck-temp drift .92 [02] recipe rev A→B .68 [03] EFEM particle .41 ], recommendation: "schedule LITHO-3 re-cal", citations: [ ↳ KB·case-2074 ↳ KB·case-1981 ]}SIGNEDengineer-approvedverification trail · HITL01 · audit log00:00prompt + ctx00:01retrieve KB-207400:03output · 3 candidates00:04fingerprint 0x3f.a4f102 · engineer · reviewdiagnosis · 4m 12sverifying, not readingroot-cause #01 agreedcitation KB-2074 verifiedaction plan · 1 addition03 · signed · ready to applysigned by · jee.tAPPROVEDdecision appliedrouted to fabACTIONStool · LITHO-3 re-cal scheduledrecipe · M2 offset +0.4 nmalert · ops notified 3 pplCLOSED IN 4m 12s×320 faster

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