Poly opening polish process

A poly opening polish process includes the following steps. A semi-finished semiconductor component is provided. The semi-finished semiconductor component includes a substrate, a gate disposed on the substrate, and a dielectric layer disposed on the substrate and covering the gate. A first polishing...

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Bibliographische Detailangaben
Hauptverfasser: CHEN YEN-MING, TSAI TENGUN, LIN CHIH-HSUN, CHEN CHIA-HIS, HSU CHUN-WEI, HUANG PONG, KUNG CHANG-HUNG, HSU CHIA-LIN
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A poly opening polish process includes the following steps. A semi-finished semiconductor component is provided. The semi-finished semiconductor component includes a substrate, a gate disposed on the substrate, and a dielectric layer disposed on the substrate and covering the gate. A first polishing process is applied onto the dielectric layer. A second polishing process is applied to the gate. The second polishing process utilizes a wetting solution including a water soluble polymer surfactant, an alkaline compound and water. The poly opening polish process can effectively remove an oxide residue formed in the chemical mechanical polish, thereby improving the performance of the integrated circuit and reducing the production cost of the integrated circuit.