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Multi-layer tethers for micro-transfer printing
Multi-layer tethers for micro-transfer printing
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机译:多层束缚micro-transfer印刷
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摘要
A micro-device structure comprises a source substrate comprising sacrificial portions laterally spaced apart by anchors. Each sacrificial portion is exposed through an opening. A micro-device is disposed on each sacrificial portion and laterally attached to an anchor by a multi-layer tether. In certain embodiments, a micro-device structure is constructed by providing the source substrate, disposing micro-devices on each sacrificial portion, depositing a first tether layer over at least a portion of the source substrate and the micro-device, depositing a second tether layer over the first tether layer, and patterning the first tether layer and the second tether layer to form (i) a multi-layer tether for each of the micro-devices such that the multi-layer tether laterally attaches the micro-device to one of the anchors, and (ii) an opening exposing each of the sacrificial portions.
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