Application And Analysis Of Production Suitability Of A Laser-Based Plasma X-Ray Stepper

Darryl W Peters; Jerry P Drumheller; Robert D Frankel; Anne S. Kaplan; Stephen M. Preston; David N Tomes

doi:10.1117/12.945630

14 June 1988 Application And Analysis Of Production Suitability Of A Laser-Based Plasma X-Ray Stepper

Darryl W Peters, Jerry P Drumheller, Robert D Frankel, Anne S. Kaplan, Stephen M. Preston, David N Tomes

Proceedings Volume 0923, Electron-Beam, X-Ray, and Ion Beam Technology: Submicrometer Lithographies VII; (1988) https://doi.org/10.1117/12.945630
Event: Medical Imaging II, 1988, Newport Beach, CA, United States

Abstract

A broadly applicable lithography tool figure of merit will be presented and evaluated for present technologies. A comparison of the cost effectiveness of current lithographic technologies shows that a laser generated, soft x-ray plasma proximity stepper is superior to competing technologies for production applications at one micrometer and below. The technology developments that make a soft x-ray proximity stepper more cost effective than other high resolution lithographic technologies will be discussed. Soft x-ray exposure sensitivity data will be presented for conventional novolak resists and acid catalyzed high sensitivity novolak-based materials. Resist profiles from soft x-ray exposures of standard, novolak-based resists will be compared to simulations obtained from a modified version of SAMPLE. In addition, x-ray and optical aerial image contrast calculations from SAMPLE will be compared. Novel aspects of the patented, high brightness Hampshire x-ray source will be presented and a comparison to other x-ray sources will be made. Lastly, the preliminary performance of a stepper employing Hampshire's laser-based x-ray plasma source will be presented indicating the performance achieved to date.

Citation Download Citation

Darryl W Peters, Jerry P Drumheller, Robert D Frankel, Anne S. Kaplan, Stephen M. Preston, and David N Tomes "Application And Analysis Of Production Suitability Of A Laser-Based Plasma X-Ray Stepper", Proc. SPIE 0923, Electron-Beam, X-Ray, and Ion Beam Technology: Submicrometer Lithographies VII, (14 June 1988); https://doi.org/10.1117/12.945630

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