Nozzle assembly for an inkjet printer having a short drive transistor channel
First Claim
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1. A nozzle assembly for an inkjet printhead, said nozzle assembly comprising:
- a substrate;
an inkjet nozzle disposed on said substrate, said inkjet nozzle having an actuator for ejecting an ink droplet from said inkjet nozzle when a resistive element of said actuator is heated by an electrical current;
a drive transistor for providing an energy pulse to said resistive element of said actuator; and
control logic for controlling said drive transistor,wherein a channel length of said drive transistor is less than 1 μ
m, andwherein the resistive element of said actuator is spaced apart from said substrate.
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Abstract
A nozzle assembly for an inkjet printhead is disclosed. The nozzle assembly includes an inkjet nozzle having an actuator for ejecting an ink droplet from the inkjet nozzle when a resistive element of the actuator is heated by an electrical current. A drive transistor provides an energy pulse to the resistive element of the actuator, and control logic controls the drive transistor. The channel length of the drive transistor is less than 1 μm.
19 Citations
13 Claims
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1. A nozzle assembly for an inkjet printhead, said nozzle assembly comprising:
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a substrate; an inkjet nozzle disposed on said substrate, said inkjet nozzle having an actuator for ejecting an ink droplet from said inkjet nozzle when a resistive element of said actuator is heated by an electrical current; a drive transistor for providing an energy pulse to said resistive element of said actuator; and control logic for controlling said drive transistor, wherein a channel length of said drive transistor is less than 1 μ
m, andwherein the resistive element of said actuator is spaced apart from said substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification