Bilayer seal material for air gaps in semiconductor devices

The present disclosure relates to a method for forming a semiconductor device includes forming an opening between first and second sidewalls of respective first and second terminals. The first and second sidewalls oppose each other. The method further includes depositing a first dielectric material...

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Bibliographische Detailangaben
Hauptverfasser: Chen, Ting-Ting, Liang, Shuen-Shin, Lin, Keng-Chu, Ueno, Tetsuji, Wang, Chen-Han
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:The present disclosure relates to a method for forming a semiconductor device includes forming an opening between first and second sidewalls of respective first and second terminals. The first and second sidewalls oppose each other. The method further includes depositing a first dielectric material at a first deposition rate on top portions of the opening and depositing a second dielectric material at a second deposition rate on the first dielectric material and on the first and second sidewalls. The second dielectric material and the first and second sidewalls entrap a pocket of air. The method also includes performing a treatment process on the second dielectric material.