1987
DOI: 10.1117/12.975608
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Bilevel System HPR/PMMA

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“…-On the other hand, the lift off technique is well suited to filling in wide areas, but may be limited in providing high resolution and a good step coverage. Figure 4a shows SEM micrographs of an HPR/PMMA bilevel pattern [19] and a 150 nm deep trench etched into the glass. The whole topography is then capped by a W layer deposited by a directional sputtering technique.…”
Section: Experimentalsmentioning
confidence: 99%
“…-On the other hand, the lift off technique is well suited to filling in wide areas, but may be limited in providing high resolution and a good step coverage. Figure 4a shows SEM micrographs of an HPR/PMMA bilevel pattern [19] and a 150 nm deep trench etched into the glass. The whole topography is then capped by a W layer deposited by a directional sputtering technique.…”
Section: Experimentalsmentioning
confidence: 99%