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JPH05127361A Expired / Lapsed JP ⏱️ 0.0 years remaining

Halftone phase shift photo mask

Assignee: Dai Nippon Printing Co Ltd
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Filing: 1991-11-01
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Granted: —
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Expires: 2011-11-01
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Abstract

Abstract Translated from Japanese (57)【要約】 【目的】 構造をさらに単純化し、製造をより容易化し たハーフトーン位相シフトフォトマスク。 【構成】 透明基板10と、その表面に所定のパターン に従って設けられた均一組成材料からなるハーフトーン 遮光層兼位相シフト層11とからなり、ハーフトーン遮 光層兼位相シフト層11は、使用波長をλ、その屈折率 をnとするとき、膜厚dが、ほぼd=λ/{2(n− 1)}又はその奇数倍になるように設定され、また、そ の透過率がほぼ5〜30%の範囲になるように構成され ている。 (57) [Abstract] [Purpose] A halftone phase shift photomask with a simpler structure and easier manufacturing. [Structure] A transparent substrate 10 and a halftone light shielding layer / phase shift layer 11 made of a uniform composition material provided on a surface of the transparent substrate 10 in accordance with a predetermined pattern. When λ and its refractive index are n, the film thickness d is approximately d = λ / {2 (n- 1)} or an odd multiple thereof, and the transmittance is in the range of approximately 5 to 30%.

Inventors

  • 👤 Hiroyuki Miyashita
  • 👤 宮下裕之
  • 👤 Sachiko Ishikita
  • 👤 石北幸子
  • 👤 Takekazu Mikami
  • 👤 三上豪一

Bibliographic Details

Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-11-07 22:55
CPC Classifications
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