High-yield fabrication of large-format substrates with distributed, independent control elements
First Claim
Patent Images
1. A system comprising:
- a wafer of chiplets, the wafer comprising;
a source substrate having an array of regularly-spaced chiplet locations thereon; and
a plurality of chiplets native to the source substrate, each chiplet of the plurality of chiplets disposed on the source substrate in one of the chiplet locations in the array, wherein one or more of the chiplet locations in the array is a removed-chiplet location that is devoid of a chiplet and the removed-chiplet location(s) form an irregular arrangement; and
a storage device, distinct from the plurality of chiplets, for storing a record of locations of chiplets determined to be defective, wherein the locations of the chiplets determined to be defective correspond to the removed-chiplet locations.
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Abstract
A large-format substrate with distributed control elements is formed by providing a substrate and a wafer, the wafer having a plurality of separate, independent chiplets formed thereon; imaging the wafer and analyzing the wafer image to determine which of the chiplets are defective; removing the defective chiplet(s) from the wafer leaving remaining chiplets in place on the wafer; printing the remaining chiplet(s) onto the substrate forming empty chiplet location(s); and printing additional chiplet(s) from the same or a different wafer into the empty chiplet location(s).
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Citations
21 Claims
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1. A system comprising:
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a wafer of chiplets, the wafer comprising; a source substrate having an array of regularly-spaced chiplet locations thereon; and a plurality of chiplets native to the source substrate, each chiplet of the plurality of chiplets disposed on the source substrate in one of the chiplet locations in the array, wherein one or more of the chiplet locations in the array is a removed-chiplet location that is devoid of a chiplet and the removed-chiplet location(s) form an irregular arrangement; and a storage device, distinct from the plurality of chiplets, for storing a record of locations of chiplets determined to be defective, wherein the locations of the chiplets determined to be defective correspond to the removed-chiplet locations. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification