摘要:
Voltage applying means applies a pulse voltage between a nozzle and a substrate, the nozzle having a diameter ranging from 0.01 μm to 25 μm, an upper limit voltage (10) of the pulse voltage being equal to or greater than a discharge-inducing minimum voltage (30), that is a voltage required to start discharge of fluid. A lower limit first voltage (20a) is provided immediately before a rise of the pulse voltage, the lower limit first voltage (20a) having a same polarity as that of the upper limit voltage (10), an absolute value of the lower limit first voltage (20a) being set smaller than the discharge-inducing minimum voltage (30). A lower limit second voltage (20b) is provided immediately after a rise of the pulse voltage, the lower limit second voltage (20b) having an opposite polarity as that of the upper limit voltage (10), an absolute value of the lower limit second voltage (20b) being set smaller than the discharge-inducing minimum voltage (30). With this structure, the present invention provides an electrostatic suction type fluid discharge device and an electrostatic suction type fluid discharge method, which simultaneously achieve miniaturization of nozzle, discharge of micro fluid droplet, high accuracy for discharge position, and decrease in drive voltage. The device and method offer superior discharge start/stop characteristic, thus realizing operation at high frequencies. The device is also capable of discharge amount control by pulse time.
摘要:
An electrostatic suction type fluid discharge device supplies a drive voltage from a power source between a nozzle and an insulating substrate, so as to supply an electric charge to a discharge material supplied into the nozzle. As a result, the discharge material is discharged from the nozzle hole onto the insulating substrate. The diameter of the hole of the nozzle falls within the range between φ0.01 μm and φ25 μm, the power source outputs, as the drive voltage, a bipolar pulse voltage that alternates between positive and negative and has a frequency of not less than 1 Hz.
摘要:
An electrostatic suction type fluid discharge method and device include a voltage applying means that applies a pulse voltage between a nozzle and a substrate, the nozzle having a diameter ranging from 0.01 μm to 25 μm, an upper limit voltage of the pulse voltage being equal to or greater than a discharge-inducing minimum voltage. A lower limit first voltage can be provided immediately before a rise of the pulse voltage, an absolute value of the lower limit first voltage being set smaller than the discharge-inducing minimum voltage. A lower limit second voltage can be provided immediately after a rise of the pulse voltage, an absolute value of the lower limit second voltage being set smaller than the discharge-inducing minimum voltage. With this structure, it is possible to simultaneously achieve miniaturization of nozzle, discharge of micro fluid droplet, high accuracy for discharge position, and decrease in drive voltage.
摘要:
A liquid ejection apparatus includes: a liquid ejection head (56) having a nozzle (51) for ejecting a droplet of charged solution from the tip portion; an ejection electrode (58) provided on the liquid ejection head, to which a voltage is applied for generating an electric field to eject the droplet; a voltage applying unit (35) for applying the voltage to the ejection electrode; a substrate K including insulative material for receiving the ejected droplet; and an ejection atmosphere adjusting unit (70) for keeping an atmosphere subject to ejection from the liquid ejection head, to a dew point of 9 degrees centigrade or more and less than a water saturation temperature.
摘要:
A liquid ejection apparatus includes: a liquid ejection head (26) having a nozzle (21) with an inner diameter of 15 μm or less to eject droplets of charged solution onto a substrate; an ejection voltage supply (25) to apply an ejection voltage to a solution inside the nozzle; a convex meniscus generator (40) to form a state in which the solution inside the nozzle rises from the nozzle in a convex shape; and an operation controller (50) to control application of a drive voltage to drive the convex meniscus generator and application of an ejection voltage by the ejection voltage supply so that the drive voltage to the convex meniscus generator is applied in timing overlapped with the application of a pulse voltage as the ejection voltage by the ejection voltage supply.
摘要:
An electrostatic suction type fluid discharge device supplies a drive voltage from a power source between a nozzle and an insulating substrate, so as to supply an electric charge to a discharge material supplied into the nozzle. As a result, the discharge material is discharged from the nozzle hole onto the insulating substrate. The diameter of the hole of the nozzle falls within the range between φ0.01 μm and φ25 μm, the power source outputs, as the drive voltage, a bipolar pulse voltage that alternates between positive and negative and has a frequency of not less than 1 Hz.
摘要:
With a micro nozzle in which the fluid discharge head has a nozzle with a micro hole having a diameter of 0.01 μm to 25 μm, the drive voltage during discharging operation is reduced. Further, by disposing an electrode section for applying a drive voltage to a discharge fluid on an external wall of a nozzle section, a distance between the electrode section and the nozzle hole is shortened. With this structure, the subject invention achieves both miniaturization of nozzle and reduction in drive voltage in an electrostatic suction type fluid discharge device. The subject invention also achieves an increase in discharge limit frequency while allowing use of materials with higher resistance for the fluid to be discharged.
摘要:
A liquid ejection apparatus includes: a liquid ejection head (26) having a nozzle (21) with an inner diameter of 15 μm or less to eject droplets of charged solution onto a substrate; an ejection voltage supply (25) to apply an ejection voltage to a solution inside the nozzle; a convex meniscus generator (40) to form a state in which the solution inside the nozzle rises from the nozzle in a convex shape; and an operation controller (50) to control application of a drive voltage to drive the convex meniscus generator and application of an ejection voltage by the ejection voltage supply so that the drive voltage to the convex meniscus generator is applied in timing overlapped with the application of a pulse voltage as the ejection voltage by the ejection voltage supply.
摘要:
With a micro nozzle in which the fluid discharge head has a nozzle with a micro hole having a diameter of 0.01 μm to 25 μm, the drive voltage during discharging operation is reduced. Further, by disposing an electrode section for applying a drive voltage to a discharge fluid on an external wall of a nozzle section, a distance between the electrode section and the nozzle hole is shortened. With this structure, the subject invention achieves both miniaturization of nozzle and reduction in drive voltage in an electrostatic suction type fluid discharge device. The subject invention also achieves an increase in discharge limit frequency while allowing use of materials with higher resistance for the fluid to be discharged.
摘要:
An adhesive agent comprising a condensation resin having a structural unit obtained by polycondensing a polymerizable monomer containing a monomer (A) having 2 or more carboxyl groups and a monomer (B) having 2 or more amino groups, and meeting at least one of the following (1) and (2): (1) at least one selected from the group consisting of the monomer (A), an anhydride of the monomer (A), and the monomer (B) is liquid at 25° C.; and (2) the condensation resin has a polyoxyalkanediyl group.