Observed arrival · 2026-08-28
QuantumCore’s wafer-by-wafer nanofabrication tracker
A process-tracking board for an NbTiN device run, following wafers from silicon cleaning and sputtering through lithography, dicing, block fabrication, and measurement.
Field notes
The tracker represents fabrication as a branching route rather than a simple checklist, separating wafer-level work from later block-level operations. It exposes named tools such as Plassys, Heidelberg MLA, JEOL EBL, DISCO, and G2N, while attaching identifiers to specific wafers and blocks. The visible RCA-1 procedure includes a 5:1:1 solution ratio, a 75–80 °C bath, a 10-minute soak, and three DI rinse trays. Several downstream procedures remain marked SOP pending.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
One card from the complete issue