Compliant electrostatic transfer head with spring support layer
First Claim
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1. A compliant electrostatic transfer head structure comprising:
- a base substrate;
a cavity completely in the base substrate;
a spring support layer on the base substrate, wherein the spring support layer includes a spring support layer beam profile that extends over the cavity from a first side of the cavity to a second side of the cavity and is deflectable toward the cavity;
a first insulating layer on the spring support layer; and
a patterned device layer on the spring support layer, wherein the patterned device layer includes an electrode beam profile that is supported by the spring support layer beam profile and extends over the cavity from the first side of the cavity to the second side of the cavity and is deflectable toward the cavity.
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Abstract
A compliant electrostatic transfer head and method of forming a compliant electrostatic transfer head are described. In an embodiment, a compliant electrostatic transfer head includes a cavity in a base substrate, a spring support layer on the base substrate, and a patterned device layer on the spring support layer. The spring support layer includes a spring support layer beam profile that extends over and is deflectable toward the cavity, and the patterned device layer includes an electrode beam profile that is supported by the spring support layer beam profile and extends over and is deflectable toward the cavity.
160 Citations
20 Claims
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1. A compliant electrostatic transfer head structure comprising:
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a base substrate; a cavity completely in the base substrate; a spring support layer on the base substrate, wherein the spring support layer includes a spring support layer beam profile that extends over the cavity from a first side of the cavity to a second side of the cavity and is deflectable toward the cavity; a first insulating layer on the spring support layer; and a patterned device layer on the spring support layer, wherein the patterned device layer includes an electrode beam profile that is supported by the spring support layer beam profile and extends over the cavity from the first side of the cavity to the second side of the cavity and is deflectable toward the cavity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification