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JPH0547784A Expired / Lapsed JP ⏱️ 0.0 years remaining

Formation of gate electrode

Assignee: Yokogawa Electric Corp
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Filing: 1991-08-15
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Granted: —
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Expires: 2011-08-15
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Abstract

Abstract Translated from Japanese (57)【要約】 (修正有) 【目的】 ゲ−ト用リンド−プPoly−Siの形状を 整えさせ、電気的特性を安定化できるゲ−ト電極を実現 する。 【構成】 ノンド−プ状態でPoly−Siエッチング を行って、異方性の保たれた形状を形成しておき、層間 膜を堆積した後、平坦化を施し、Poly−Siの表面 が表われるまで層間膜をエッチバックした後、n型不純 物をPoly−Siに拡散させることにより、ゲ−ト用 リンド−プPoly−Siを異方性の保たれた形状に安 定化するようにしたことを特徴とする。 (57) [Summary] (Modified) [Purpose] To realize a gate electrode capable of stabilizing the electrical characteristics by adjusting the shape of the gate poly-Si for gate. [Structure] Poly-Si etching is performed in a non-doped state to form a shape in which anisotropy is maintained, an interlayer film is deposited, and then planarization is performed to reveal the surface of Poly-Si. After the interlayer film is etched back up to this point, the n-type impurity is diffused into the Poly-Si to stabilize the gate poly-Si for gate to an anisotropic shape. Characterize.

Inventors

  • 👤 Shojiro Araki
  • 👤 昌二郎 荒木
  • 👤 Nobuyuki Hamamatsu
  • 👤 伸到 濱松
  • 👤 Jukichi Tsunako
  • 👤 充吉 津波古

Bibliographic Details

Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-10-31 14:28
CPC Classifications
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