Patent ID: 6969473

Claim:
A method of manufacturing a liquid ejection device, the device including a movable paddle, the method utilizing semiconductor fabrication techniques and including the steps of: depositing a first layer of sacrificial material on a substrate having drive circuitry formed thereon; depositing at least a second layer of sacrificial material on a selected part or parts of the first sacrificial layer; depositing a paddle forming layer of material over the first and second sacrificial layers so as to be coupled to the drive circuitry; depositing a third layer of sacrificial material on the paddle forming layer; depositing liquid chamber forming material on the third sacrificial layer; depositing a fourth layer of sacrificial material on a selected part or parts of the liquid chamber forming material; etching the liquid chamber forming material to form a nozzle; etching the sacrificial layers to thereby form a liquid chamber and a paddle mounted on the substrate.