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Specific Process Knowledge/Thin film deposition/Furnace LPCVD Nitride: Difference between revisions

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==Introduction==
==Introduction==
[[image:Furnace_nitride1.jpg|300x300px|right|thumb|B2 Furnace LPCVD Nitride: positioned in cleanroom 2]]
[[image:Furnace_nitride1.jpg|300x300px|right|thumb|B2 Furnace LPCVD Nitride: positioned in cleanroom 2]]
The furnace is a Tempress horisontal furnace. The process is a batch process meaning you can run a batch of 25 wafers at a time. The deposition takes place at temperatures of 800-835 degrees Celsius. The reactive gases are Ammonia and dichlorsilane. The LPCVD nitride has a good step coverage and the film thickness is very uniform over the wafer. We have two standard LPCVD nitride processes: One for depositing stoichiometric nitride (Si<sub>3</sub>N<sub>4</sub>) and one for deposition of low stress nitride (SNR). To get information on how to operate the furnace please read the manual which is uploaded to LabManager.
At the moment there is one furnace for silicon nitride depositions at Danchip. The furnace is a Tempress horizontal furnace. The process is a batch process meaning you can run a batch of 25 wafers at a time. The deposition takes place at temperatures of 800-835 degrees Celsius. The reactive gases are Ammonia and dichlorsilane. The LPCVD nitride has a good step coverage and the film thickness is very uniform over the wafer. We have two standard LPCVD nitride processes: One for depositing stoichiometric nitride (Si<sub>3</sub>N<sub>4</sub>) and one for deposition of low stress nitride (SNR). To get information on how to operate the furnace please read the manual which is uploaded to LabManager.


==Process Knowledge==
==Process Knowledge==