Discharge system and method of discharge by a discharge system
AssigneeMicrojet Corporation
InventorsShuichi Yamaguchi, Hisashi Takeuchi, Tomoya Kurashina
Life of this patent
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Abstract
A discharge system includes: a head unit including discharge heads that discharge a liquid material from nozzle openings that are communication with cavities onto a target by changing the internal pressure of the cavities using piezo elements; a viscosity estimating unit that estimates the viscosity of the liquid material by sucking the liquid material from first vessels that hold the liquid material into the cavities; and a waveform control unit that controls the voltage applied to the piezo elements according to the estimated viscosity of the liquid material.
Claims16
A discharge system comprising:
- a discharge head that discharges a liquid material onto a target from a nozzle opening that is communicated with a cavity by changing an internal pressure of the cavity using an actuator;
- a state estimating unit that estimates a state of the liquid material by sucking the liquid material from a first vessel holding the liquid material into the cavity via the nozzle opening;
- and
- a driving condition setting unit that sets conditions for driving the actuator according to an estimated state of the liquid material.
A method of discharging a liquid material onto a target using a discharge system,
- the discharge system including a discharge head that discharges a liquid material on to the target from a nozzle opening that is communication with a cavity by changing an internal pressure of the cavity using an actuator;
- and a control unit that controls the actuator,
- the method comprising:
- estimating, with the control unit, a state of the liquid material by sucking the liquid material from a first vessel holding the liquid material into the cavity via the nozzle opening;
- and
- setting conditions for driving the actuator according to an estimated state of the liquid material.
Dependencies are inferred from the claim text.