PHOTORESIST BRIDGING DEFECT REMOVAL BY REVERSE TONE WEAK DEVELOPER

A method for removing photoresist bridging defects includes coating a photoresist layer over a dielectric layer formed over a substrate, applying a first developer that results in formation of one or more photoresist bridging defects, and applying a second developer to remove the one or more photore...

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Bibliographische Detailangaben
Hauptverfasser: Petrillo, Karen E, Saulnier, Nicole A, Bi, Zhenxing, Tang, Hao
Format: Patent
Sprache:eng
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Zusammenfassung:A method for removing photoresist bridging defects includes coating a photoresist layer over a dielectric layer formed over a substrate, applying a first developer that results in formation of one or more photoresist bridging defects, and applying a second developer to remove the one or more photoresist bridging defects. The first developer is an aqueous base developer and the second developer is a reverse tone weak developer (RTWD), the RTWD being a mixture of a first (good) solvent and a second (bad) solvent for the photoresist.