Compliant bipolar micro device transfer head with silicon electrodes
First Claim
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1. A compliant electrostatic transfer head array comprising:
- a base substrate;
a device layer on the base substrate, the device layer comprising;
a first trace interconnect integrally formed with a first array of electrodes; and
a second trace interconnect integrally formed with a second array of electrodes;
wherein the first array of electrodes is electrically insulated from the second array of electrodes, and each electrode of the first array of electrodes and the second array of electrodes is deflectable toward the base substrate; and
an array of dielectric joints that join the first array of electrodes to the second array of electrodes.
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Abstract
A compliant bipolar micro device transfer head array and method of forming a compliant bipolar micro device transfer array from an SOI substrate are described. In an embodiment, a compliant bipolar micro device transfer head array includes a base substrate and a patterned silicon layer over the base substrate. The patterned silicon layer may include first and second silicon interconnects, and first and second arrays of silicon electrodes electrically connected with the first and second silicon interconnects and deflectable into one or more cavities between the base substrate and the silicon electrodes.
109 Citations
18 Claims
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1. A compliant electrostatic transfer head array comprising:
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a base substrate; a device layer on the base substrate, the device layer comprising; a first trace interconnect integrally formed with a first array of electrodes; and a second trace interconnect integrally formed with a second array of electrodes; wherein the first array of electrodes is electrically insulated from the second array of electrodes, and each electrode of the first array of electrodes and the second array of electrodes is deflectable toward the base substrate; and an array of dielectric joints that join the first array of electrodes to the second array of electrodes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification