Drop dispenser device
First Claim
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1. A liquid dispensing device comprising:
- first and second substrates, wherein the first substrate includes an opening for introduction of a fluid, and the second substrate includes a multiplicity of electrodes that include;
at least one transfer electrode, located at least partially opposite to the opening,at least two drop-forming electrodes, andat least one reservoir electrode, associated with the transfer electrode and with the drop-forming electrodes, and with an area that is at least equal to three times an area of each drop-forming electrode, wherein the reservoir electrode can be activated without activation of the transfer electrode, and vice versa.
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Abstract
A liquid dispensing device includes first and second substrates, with the first substrate including an opening for introduction of a fluid, and the second substrate including a multiplicity of electrodes. The device includes a transfer electrode, located at least partially opposite to the opening, at least two drop-forming electrodes, and a reservoir electrode, located between the transfer electrode and the drop-forming electrodes, and with an area that is at least equal to three times the area of each drop-forming electrode.
101 Citations
23 Claims
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1. A liquid dispensing device comprising:
first and second substrates, wherein the first substrate includes an opening for introduction of a fluid, and the second substrate includes a multiplicity of electrodes that include; at least one transfer electrode, located at least partially opposite to the opening, at least two drop-forming electrodes, and at least one reservoir electrode, associated with the transfer electrode and with the drop-forming electrodes, and with an area that is at least equal to three times an area of each drop-forming electrode, wherein the reservoir electrode can be activated without activation of the transfer electrode, and vice versa. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A liquid dispensing device comprising:
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first and second substrates, wherein the first substrate includes an opening for introduction of a fluid, and the second substrate includes a multiplicity of electrodes that include; at least one transfer electrode located at least partially opposite to the opening, at least two drop-forming electrodes, and at least one reservoir electrode, associated with the transfer electrode and with the drop-forming electrodes, and with an area that is at least equal to three times an area of each drop-forming electrode, wherein the reservoir electrode can be activated without activation of the transfer electrode, and vice versa; and means for moving drops by electro-wetting, the means forming a loop. - View Dependent Claims (18, 19)
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20. A liquid drop dispensing process that uses a device that includes,
first and second substrates, wherein the first substrate includes an opening for introduction of a fluid, and the second substrate includes a multiplicity of electrodes that include at least one transfer electrode, located at least partially opposite to the opening, a plurality of drop-forming electrodes, and at least one reservoir electrode, associated with the transfer electrode and with the drop-forming electrodes, and with an area that is at least equal to three times an area of each drop-forming electrode, wherein the reservoir electrode can be activated without activation of the transfer electrode, and vice versa, wherein the method comprises: -
forming a liquid reservoir opposite to the at least one reservoir electrode; ejecting a drop of liquid by activation of n of the drop-forming electrodes, wherein n>
2; andthen de-activating at least one of the electrodes from among the n−
1 electrodes that are closest to the at least one reservoir electrode.
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21. A liquid drop dispensing process comprising:
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using a device to dispense a drop, said device including first and second substrates, wherein the first substrate includes an opening for introduction of a fluid, and the second substrate includes a multiplicity of electrodes that include at least one transfer electrode located at least partially opposite to the opening, at least two drop-forming electrodes, and at least one reservoir electrode, associated with the transfer electrode and with the drop-forming electrodes, and with an area that is at least equal to three times an area of each drop-forming electrode, wherein the reservoir electrode can be activated without activation of the transfer electrode, and vice versa; and means for moving drops by electro-wetting, the means forming a loop. - View Dependent Claims (22, 23)
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Specification