Dr. Kenneth D. Duerksen Profile

Dr. Kenneth D. Duerksen

Retired at Tokyo Electron America Inc

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Proceedings Article | 20 May 2006 Paper

The design and qualification of the TEL CLEAN TRACK ACT M photomask coating tool at Intel

Andrew Jamieson, Thuc Dam, Ki-Ho Baik, Ken Duerksen, Elie Eidson, Keiji Akai, Kazuya Hisano, Norifumi Kohama, Shinichi Machidori

Proceedings Volume 6283, 62831P (2006) https://doi.org/10.1117/12.681751

KEYWORDS: Photomasks, Coating, Manufacturing, Photoresist processing, Semiconducting wafers, Head, Ultraviolet radiation, Particles, Thin film coatings, Wafer manufacturing

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As photomask complexity has increased, mask manufacturing has become significantly more challenging. Tightening specs on defect performance, resolution, and CD control have pushed mask manufacturing to achieve levels that nearly match wafer capabilities. To meet wafer manufacturing needs, mask production requires high yield and quick turn-around time, resulting in an increased demand for very high equipment reliability. In-line resist coating capability is important to meet these demands; both for robust 2^nd level phase-shift coating processes, and the enablement of advanced 1^st-level process development with new resists and new resist process conditions. Intel Corporation worked with Tokyo Electron Ltd (TEL) to bring one of the first CLEAN TRACK ACT M (ACT M) units through design, acceptance tests and into manufacturing. TEL's CLEAN TRACK ACT M is a resist coating tool based on the CLEAN TRACK ACT12 (ACT 12) wafer manufacturing platform, and contains multiple mask-specific modules including advanced softbake oven units, edge-bead removal modules, and cleaning systems. After setup and optimization, the tool shows impressive performance, (for example, within-plate thickness uniformity of < 8A (3s) for certain processes). The motivation of the tool layout is discussed thoroughly. Elements of the module designs and their performance are shown. The acceptance testing performance is presented and includes: cleaning capabilities, oven performance, thickness performance, coating defect levels and edge bead removal capabilities. Finally, there is a limited discussion of manufacturing performance.

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