Gas mixture control in a gas discharge light source

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United States of America Patent

PATENT NO 9819136
SERIAL NO

15132803

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Abstract

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A gas discharge light source includes a gas discharge system that includes one or more gas discharge chambers. Each of the gas discharge chambers in the gas discharge system is filled with a respective gas mixture. For each gas discharge chamber, a pulsed energy is supplied to the respective gas mixture by activating its associated energy source to thereby produce a pulsed amplified light beam from the gas discharge chamber. One or more properties of the gas discharge system are determined. A gas maintenance scheme is selected from among a plurality of possible schemes based on the determined one or more properties of the gas discharge system. The selected gas maintenance scheme is applied to the gas discharge system. A gas maintenance scheme includes one or more parameters related to adding one or more supplemental gas mixtures to the gas discharge chambers of the gas discharge system.

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Patent Owner(s)

Patent OwnerAddress
CYMER LLC17075 THORNMINT COURT SAN DIEGO CA 92127

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Aggarwal, Tanuj San Diego, US 14 38
Ahlawat, Rahul San Diego, US 12 45

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