Mask identification database server

The present invention generally relates to manufacturing processes and equipment using masks and masking structures and, more particularly, to tracking the movement and useful life of masks in an entire semiconductor processing system. The physical movement of reticles and solder bump masks within a...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Shirley, Russel, Conboy, Michael R, Bowser, Jr., Horace Paul
Format: Patent
Sprache:eng
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The present invention generally relates to manufacturing processes and equipment using masks and masking structures and, more particularly, to tracking the movement and useful life of masks in an entire semiconductor processing system. The physical movement of reticles and solder bump masks within a wafer processing plant are continually tracked and documented in a historical database for the useful life of the reticles or masks. In an example embodiment of the mask tracking method, the method includes moving the masks from one location to another in mask pods. In addition, a mask data set is generated for each mask composed of a mask identification code cross-referenced to a pod identification code and the mask data sets are then stored in a computer arrangement. The mask data sets are then updated in the computer arrangement to include a facility location identification code as each mask moves to a subsequent location during wafer processing. An important advantage is that wafer lots and reticles can now be matched to an event on the processing line and stored as data for later review and analysis.