SUBSTRATE HOLDERS AND METHODS OF SUBSTRATE MOUNTING
First Claim
1. A substrate holder for holding a semiconductor substrate for processing in a molecular beam epitaxy system, the substrate including a front side for epitaxial growth, an opposite backside, and an outer edge extending between the front side and the backside, the substrate holder comprising:
- a body comprising a central opening extending from a backside to a top side of the body, an inner ring surrounding the central opening, and a substrate support lip extending from the inner ring into the central opening;
at least one tensioning device operatively attached to the body and comprising a cam member and a spring in contact with a portion of the cam member, wherein the spring comprises an elongated portion having opposite ends and a contact portion extending from each of the opposite ends of the elongated portion for contacting the outer edge of the substrate.
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Accused Products
Abstract
A substrate holder for holding a semiconductor substrate for processing in a molecular beam epitaxy system, the substrate including a front side, an opposite backside for epitaxial growth, and an outer edge extending between the front side and the backside, the substrate holder including a body comprising a central opening extending from a backside to a top side of the body, an inner ring surrounding the central opening, and a substrate support lip extending from the inner ring into the central opening, and at least one tensioning device operatively attached to the body and including a cam member and a spring in contact with a portion of the cam member, wherein the spring has a elongated portion and at least two contact portions extending from opposite ends of the elongated portion for contacting the outer edge of the substrate.
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Citations
15 Claims
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1. A substrate holder for holding a semiconductor substrate for processing in a molecular beam epitaxy system, the substrate including a front side for epitaxial growth, an opposite backside, and an outer edge extending between the front side and the backside, the substrate holder comprising:
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a body comprising a central opening extending from a backside to a top side of the body, an inner ring surrounding the central opening, and a substrate support lip extending from the inner ring into the central opening; at least one tensioning device operatively attached to the body and comprising a cam member and a spring in contact with a portion of the cam member, wherein the spring comprises an elongated portion having opposite ends and a contact portion extending from each of the opposite ends of the elongated portion for contacting the outer edge of the substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A substrate holder for holding a semiconductor substrate for processing in a molecular beam epitaxy system, the substrate including a front side for epitaxial growth, an opposite backside, and an outer edge extending between the front side and the backside, the substrate holder comprising:
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a body comprising a central opening extending from a backside to a top side of the body, and an inner ring surrounding the central opening, and a substrate support lip extending from the inner ring into the central opening; at least one tensioning device operatively attached to the body and comprising a cam member and a spring in contact with a portion of the cam member, wherein the spring comprises a elongated portion, at least two contact portions, each of which extends from one of the opposite ends of the elongated portion for contacting the outer edge of the substrate, and at least two support portions, each of which extends from a distal end of one of the contact portions for supporting the front side of the substrate. - View Dependent Claims (13)
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14. A method of loading a substrate into a substrate holder that comprises a body comprising a central opening extending from a backside to a top side of the body, an inner ring surrounding the central opening, and a substrate support lip extending from the inner ring into the central opening, and at least one tensioning device operatively attached to the body and comprising a cam member and a spring in contact with a portion of the cam member, wherein the spring comprises a elongated portion and a contact portion extending from each of the opposite ends of the elongated portion for contacting the outer edge of the substrate, the method comprising the steps of:
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placing a substrate into the central opening of the body from the backside of the body with the at least one tensioning member in an unloaded condition; manipulating the at least one tensioning device to move it to its loaded condition in which the contact portions of the spring are in contact with an outer edge of the substrate. - View Dependent Claims (15)
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Specification