SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING THE SAME

To provide a semiconductor device having a reservoir capacitor and a method for manufacturing the same, in which a pillar-shaped first electrode is placed between a substrate and a second electrode to increase the surface area of the capacitor.SOLUTION: A reservoir capacitor can have a substrate, a...

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1. Verfasser: KIM JUNG SAM
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To provide a semiconductor device having a reservoir capacitor and a method for manufacturing the same, in which a pillar-shaped first electrode is placed between a substrate and a second electrode to increase the surface area of the capacitor.SOLUTION: A reservoir capacitor can have a substrate, a pillar-shaped first electrode located above the substrate, a second electrode covering the sides and top surface of the first electrode above the substrate and the first electrode, and a dielectric layer interposed between the first and second electrodes.SELECTED DRAWING: Figure 2 【課題】基板と第2の電極との間にピラー状の第1の電極を配置し、キャパシタの表面積を増加させることができるリザーバーキャパシタを備える半導体装置及びその製造方法を提供すること。【解決手段】本実施形態に係るリザーバーキャパシタは、基板と、前記基板上部に配置されたピラー状の第1の電極と、前記基板及び第1の電極の上部に前記第1の電極の側面及び上部面をカバーリングする第2の電極と、前記第1の電極及び第2の電極の間に介在された誘電層とを備えることができる。【選択図】図2