CAPACITANCE MONITORING USING X-RAY DIFFRACTION

A method includes measuring a difference between a primary X-ray diffraction peak and a secondary X-ray diffraction peak, the primary X-ray diffraction peak corresponds to an unstrained portion of a semiconductor substrate and the secondary X-ray diffraction peak corresponds to a strained portion of...

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Bibliographische Detailangaben
Hauptverfasser: Kang Donghun, Kwon Oh-jung, Murray Conal E, Kohli Kriteshwar K, Madan Anita
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A method includes measuring a difference between a primary X-ray diffraction peak and a secondary X-ray diffraction peak, the primary X-ray diffraction peak corresponds to an unstrained portion of a semiconductor substrate and the secondary X-ray diffraction peak corresponds to a strained portion of the semiconductor substrate, the difference between the primary X-ray diffraction peak and the secondary X-ray diffraction peak includes a delta shift peak that corresponds to changes in a crystal lattice caused by a stress applied to the strained portion of the semiconductor substrate, the delta shift peak includes variations in a deep trench capacitance.