System and method for protecting microelectromechanical systems array using structurally reinforced back-plate
First Claim
Patent Images
1. An electronic device, comprising:
- a substrate;
an array of microelectromechanical devices formed on the substrate, the array having a back-surface facing away from the substrate;
a back-plate placed over the array and having an interior surface and an exterior surface, the interior surface facing the back-surface of the array with a gap therebetween, the exterior surface facing away from the substrate; and
one or more reinforcing structures integrated with the back-plate.
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Abstract
Disclosed is an electronic device utilizing interferometric modulation and a package of the device. The packaged device includes a substrate, an interferometric modulation display array formed on the substrate, and a back-plate. The back-plate is placed over the display array with a gap between the back-plate and the display array. The device further includes reinforcing structures which are integrated with the back-plate. The reinforcing structures add stiffness to the back-plate. The back-plate may have a thickness varying along an edge thereof.
96 Citations
36 Claims
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1. An electronic device, comprising:
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a substrate;
an array of microelectromechanical devices formed on the substrate, the array having a back-surface facing away from the substrate;
a back-plate placed over the array and having an interior surface and an exterior surface, the interior surface facing the back-surface of the array with a gap therebetween, the exterior surface facing away from the substrate; and
one or more reinforcing structures integrated with the back-plate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An electronic device, comprising:
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a substrate;
a microelectromechanical array formed on the substrate, the array having a back-surface facing away from the substrate;
a back-plate placed over the array and having an interior surface, which faces the back-surface of the array with a gap therebetween, wherein the back-plate has a thickness varying along an edge thereof. - View Dependent Claims (20, 21, 22, 23, 24)
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25. An electronic device, comprising:
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a substrate;
an array of interferometric modulators formed on the substrate, the array having a back-surface facing away from the substrate;
a back-plate placed over the array and having an interior surface facing the back-surface of the array with a gap between the interior surface and the back-surface of the array; and
means for preventing the interior surface from directly contacting the back-surface of the array. - View Dependent Claims (26, 27, 28, 29)
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30. A method of making an electronic device, comprising:
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providing an intermediate device comprising a substrate and an array of microelectromechanical devices formed on the substrate; and
forming a back-plate over the array of the intermediate device with a gap between the back-plate and the array, the back-plate having an interior surface and an exterior surface, the interior surface facing the array, the back-plate being integrated with one or more reinforcing structures formed on at least one of the interior surface and the exterior surface. - View Dependent Claims (31, 32, 33)
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34. An electronic device produced by a method comprising:
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providing an intermediate device comprising a substrate and an array of microelectromechanical devices formed on the substrate; and
forming a back-plate over the array of the intermediate device with a gap between the back-plate and the array, the back-plate having an interior surface and an exterior surface, the interior surface facing the array, the back-plate being integrated with one or more reinforcing structures formed on at least one of the interior surface and the exterior surface. - View Dependent Claims (35, 36)
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Specification