FUNCTIONAL LIQUID EJECTION APPARATUS, FUNCTIONAL LIQUID EJECTION METHOD AND IMPRINTING SYSTEM
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United States of America Patent
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app pub date -
Sep 23, 2013
filing date -
Mar 25, 2011
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Abstract
A nozzle ejects a functional liquid having a viscosity of not less than 5 millipascal·second and not more than 20 millipascal·second, onto a substrate. The functional liquid inside a pressure chamber connected to the nozzle is pressurized. A drive voltage having a pull waveform element which causes the pressure chamber to expand from a steady state and a push waveform element which causes the expanded pressure chamber to contract, is generated with a relationship between a slope γ1 representing voltage change per unit time in the pull waveform element, the viscosity η of the functional liquid, a resonance period Tc of the head, and a slope γ2 representing voltage change per unit time in the push waveform element satisfying (2/Tc)≦γ1≦(η/10) and γ2≦γ1.
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