Microvolume-liquid application method and microvolume-liquid dispenser
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United States of America Patent
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Jun 16, 2020
Grant Date -
Jun 20, 2019
app pub date -
Nov 27, 2018
filing date -
Dec 14, 2017
priority date (Note) -
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Abstract
In a microvolume-liquid dispenser, there is performed an application operation for dispensing a microvolume liquid present in an amount measured in nanoliters or picoliters from a nozzle tip-end opening and applying the microvolume liquid to an application surface. When the application operation has not been performed over a time interval longer than a set time interval ta, a tip-end liquid surface of an application liquid in the nozzle tip-end opening is caused to vibrate at a high amplitude that includes the position of a liquid surface height from immediately before application in the case of application at equal time intervals. The subsequently performed application operation is performed at a point in time when the liquid surface height has returned to the liquid surface height. The operation for applying the microvolume application liquid can be precisely performed in the same manner as when application is performed at equal time intervals.
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