Quickstart

Goal

Get from a loaded lot to a saved notebook with one useful finding.

Recommended first pass

1. Open Analyze and select a lot.
2. Let the default snapshot and default test selections settle.
3. Scan the CPK table for the worst tests.
4. Open scatter, histogram, or wafer views from the failing test.
5. Brush a region or die population and watch the other views update.
6. If you need to evaluate a spec change, enter what-if mode and review impact before saving.
7. If you want a custom table or grouped summary, switch to SQL and query current_scope_test_results.
8. Save the notebook when you have a finding worth keeping.

What to look for first

• Low CPK tests with non-trivial fail rate
• Spatial signatures on the wafer map
• Outlier tails in histogram
• Site or wafer-specific behavior in scatter and trend views
• Large difference between baseline and proposed yield in impact review

Recommended mental model

• Lot selector chooses the dataset.
• Snapshot selector chooses the saved ingest state for that lot.
• Cards give a fast view.
• Modals give the full workflow.
• Notebook state persists the analysis context, selection state, and scenario limits.
• SQL can now inherit that same context through the current_scope* helper views.

If you only remember four product ideas

• Linked views are the point: selection in one surface should explain the others.
• What-if limit edits are notebook state, not throwaway local UI.
• Share links are read-only.
• Saved versions now track which notebook version they were based on.