Method and apparatus for assembling an array of micro-devices
First Claim
1. An apparatus for bringing an individual die contained in a die holder adjacent to a second wafer, said apparatus comprising:
- an elevation actuator to adjust the elevation of said die in said holder relative to the second wafer; and
an azimuthal actuator to adjust the azimuthal orientation of said die in said die holder relative to the second wafer, wherein the die comprises at least one MEMS device, and the elevation and azimuthal actuators orient a feature of the MEMS device with respect to a feature on the second wafer.
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Abstract
The invention describes a method and apparatus for deploying micromachined actuators in a plane which is orthogonal to the original fabrication plane of the devices. Using batch-processing, photolithographic procedures known in the micromachined electro-mechanical system (MEMS) art, a plurality of devices is constructed on a suitable substrate. The devices are then separated one from another by sawing and dicing the original fabrication wafer. The devices are rotated into an orthogonal orientation and affixed to a second wafer. The second wafer also contains circuitry for addressing and manipulating each of the devices independently of the others. With this method and apparatus, arrays of actuators are constructed whose plane of actuation is perpendicular to the plane of the array. This invention is useful for constructing N×M fiber optic switches, which direct light from N input fibers into M output fibers.
19 Citations
19 Claims
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1. An apparatus for bringing an individual die contained in a die holder adjacent to a second wafer, said apparatus comprising:
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an elevation actuator to adjust the elevation of said die in said holder relative to the second wafer; and an azimuthal actuator to adjust the azimuthal orientation of said die in said die holder relative to the second wafer, wherein the die comprises at least one MEMS device, and the elevation and azimuthal actuators orient a feature of the MEMS device with respect to a feature on the second wafer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification