2003
DOI: 10.1063/1.1639704
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Tungsten Deposited Scanning Probe Microscope Tips for Critical Dimension Measurement

Abstract: We fabricated a robust and high aspect ratio tungsten deposited tip (TD tip) using a Focused Ion Beam (FIB). This tip was well controlled during fabrication. Tip diameter is uniform at around 90nm and its growing length is proportional to the irradiation time of the ion beam. Tip shape is a cylindrical pillar and aspect ratio (length/diameter) is greater than 10. Growing angle of the tip is identical to the incident angle of the ion beam. Critical dimension (CD) measurement of shallow trench isolation (STI) wa… Show more

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Cited by 2 publications
(1 citation statement)
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“…Electron-or ion-beam-induced metal deposition can individually grow metal nanowires with diameters below 100 nm at desired positions. Yasutake et al deposited single tungsten pillars with diameters of 90 nm on flattened AFM probe ends by focusedion-beam-(FIB)-induced deposition (26). However, the beam-induced deposition introduces deposition of other elements such as C from the organometallic precursors and Ga from the ion beam.…”
Section: Introductionmentioning
confidence: 99%
“…Electron-or ion-beam-induced metal deposition can individually grow metal nanowires with diameters below 100 nm at desired positions. Yasutake et al deposited single tungsten pillars with diameters of 90 nm on flattened AFM probe ends by focusedion-beam-(FIB)-induced deposition (26). However, the beam-induced deposition introduces deposition of other elements such as C from the organometallic precursors and Ga from the ion beam.…”
Section: Introductionmentioning
confidence: 99%