DOPANT FUNNEL FOR LOADING AND DISPENSING DOPANT
First Claim
Patent Images
1. A dopant funnel for loading dopant pellets into a dispenser tube of a dopant dispenser, the dopant funnel comprising:
- a cup for holding the dopant pellets, the cup having a restrictor to meter the number of dopant pellets exiting the cup;
a shaft in alignment with the restrictor for delivering the dopant pellets from the cup to the dispenser tube.
2 Assignments
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Accused Products
Abstract
A dopant funnel for loading dopant pellets into a dispenser tube of a dopant dispenser is disclosed. The dopant funnel has a cup connected through a restrictor to a shaft. The cup holds random oriented dopant pellets. The restrictor meters the amount and orientation of dopant pellets being removed from the cup. The shaft is in alignment with the restrictor for delivering dopant pellets from the cup to the dispenser tube.
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Citations
20 Claims
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1. A dopant funnel for loading dopant pellets into a dispenser tube of a dopant dispenser, the dopant funnel comprising:
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a cup for holding the dopant pellets, the cup having a restrictor to meter the number of dopant pellets exiting the cup; a shaft in alignment with the restrictor for delivering the dopant pellets from the cup to the dispenser tube. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for loading a dispenser tube of a dopant dispenser for use in a crystal pulling system with a dopant funnel having a cup connected through a restrictor with a shaft, the method comprising:
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loading the cup of the dopant funnel with randomly oriented dopant pellets; aligning the shaft with the dispenser tube; and causing a vibrating movement of the dopant funnel to induce movement of the randomly oriented dopant pellets with respect to the dopant funnel. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification