Abstract
Progress on the fabrication of zone plates for hard X-rays is reported. The issue of achieving a high aspect ratio for lithographic structures has been addressed by developing a specific fabrication protocol based on the combined use of electron beam and proximity X-ray lithography. An example of a 1 mm diameter wide zone plate, optimized for a 23 keV X-ray beam, is presented, showing an aspect ratio of the outermost zone of up to 10. The most critical steps of the fabrication process are discussed on the basis of the results.
Original language | English (US) |
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Pages (from-to) | 173-177 |
Number of pages | 5 |
Journal | Microelectronic Engineering |
Volume | 61-62 |
DOIs | |
State | Published - Jul 2002 |
Externally published | Yes |
Event | Micro and Nano Engineering 2001 - Grenoble, France Duration: Sep 16 2001 → Sep 19 2001 |
Keywords
- X-ray lithography
- Zone plates
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Surfaces, Coatings and Films
- Electrical and Electronic Engineering