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JP2000294644A Expired / Lapsed JP ⏱️ 0.0 years remaining

Method of forming wiring structure

Assignee: Panasonic Holdings Corp
•
Filing: 2000-03-10
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Granted: —
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Expires: 2020-03-10
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Abstract

Abstract Translated from Japanese (57)【要約】 【課題】 通常のレジストプロセスを採用して、比誘電 率が低い層間絶縁膜を形成できるようにする。 【解決手段】 半導体基板300上に、第1の有機含有 シリコン酸化膜303、低誘電率SOG膜304及び第 2の有機含有シリコン酸化膜305を順次堆積した後、 第2の有機含有シリコン酸化膜305の上にマスクパタ ーン308を形成する。第2の有機含有シリコン酸化膜 305、低誘電率SOG膜304及び第1の有機含有シ リコン酸化膜303に対して第2のレジストパターン3 09をマスクとしてエッチングを行なって、第1の有機 含有シリコン酸化膜303にコンタクトホール310を 形成する。第2のレジストパターン309を除去した 後、第2の有機含有シリコン酸化膜305及び低誘電率 SOG膜304に対してマスクパターン308をマスク としてエッチングを行なって、低誘電率SOG膜304 に配線溝311を形成する。 (57) [Problem] To provide an interlayer insulating film having a low relative dielectric constant by employing a normal resist process. SOLUTION: After a first organic-containing silicon oxide film 303, a low dielectric constant SOG film 304, and a second organic-containing silicon oxide film 305 are sequentially deposited on a semiconductor substrate 300, A mask pattern 308 is formed on the second organic-containing silicon oxide film 305. The second resist pattern 3 is applied to the second organic-containing silicon oxide film 305, the low dielectric constant SOG film 304, and the first organic-containing silicon oxide film 303. 09 is used as a mask to form a contact hole 310 in the first organic-containing silicon oxide film 303. After removing the second resist pattern 309, the second organic-containing silicon oxide film 305 and the low dielectric constant SOG film 304 are etched using the mask pattern 308 as a mask, and the low dielectric constant SOG film 304 is etched. Then, a wiring groove 311 is formed.

Inventors

  • 👤 Nobuo Aoi
  • 👤 信雄 青井

Bibliographic Details

Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-11-08 09:16
CPC Classifications
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