Wafer alignment method and system

Wafers are aligned with one another by reference to features formed on or in each wafer. Notches are formed in each wafer, including a pivot-notch that allows for two-point contact, and a stop-notch that provides for single-point contact. A bias-notch is formed for pressing the wafers into engagemen...

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Bibliographische Detailangaben
Hauptverfasser: Prabhu, Anmiv S, Samiee, Kevan, Capella, Richard, Mains, Peter
Format: Patent
Sprache:eng
Schlagworte:
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Zusammenfassung:Wafers are aligned with one another by reference to features formed on or in each wafer. Notches are formed in each wafer, including a pivot-notch that allows for two-point contact, and a stop-notch that provides for single-point contact. A bias-notch is formed for pressing the wafers into engagement with the two-contact element when it is in the pivot-notch and with the single-contact element when it is in the stop-notch. The wafers may be bonded to one another to maintain the alignment of the referenced features.