发明名称 |
Leak detector for sealed optical devices |
摘要 |
This invention discloses a method for detecting a leak from a sealed optical device. The method includes steps of: A) injecting a target gas with no performance interference to the sealed optical device for leak detection followed by sealing the sealed optical device. B) placing the sealed device in a leak testing chamber and measuring a background level of the target gas in the leak testing chamber. C) heating the sealed device to a gas-expelling temperature for expelling the target gas from the leak in the sealed optical device. And, D) detecting the target gas in a one-part-per million (PPM) range in the leak-detecting chamber for an comparing with the background level of the target gas for determining the leak in the sealed optical device.
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申请公布号 |
US6696296(B2) |
申请公布日期 |
2004.02.24 |
申请号 |
US20010800399 |
申请日期 |
2001.03.05 |
申请人 |
OPLINK COMMUNICATIONS, INC. |
发明人 |
LI JASON;ZHU STEVEN GUOXIN |
分类号 |
G01M3/22;G01N33/00;(IPC1-7):G01N31/00 |
主分类号 |
G01M3/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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