In situ silicon and titanium nitride deposition
First Claim
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1. A method of processing semiconductor wafers, comprising:
- loading a batch of semiconductor wafers into a processing chamber;
depositing titanium nitride (TiN) onto the wafers in the processing chamber; and
depositing silicon onto the wafers in the processing chamber by performing a thermal chemical vapor deposition at a silicon deposition temperature within about 20°
C. of a temperature for depositing titanium nitride, without removing the wafers from the processing chamber between said depositing steps, wherein the silicon precursor is trisilane.
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Abstract
A method of processing semiconductor wafers is provided, comprising loading a batch of semiconductor wafers into a processing chamber; depositing titanium nitride (TiN) onto the wafers in the processing chamber; and depositing silicon onto the wafers in the processing chamber, without removing the wafers from the processing chamber between said depositing steps. In preferred embodiments, the TiN and silicon depositing steps are both conducted at temperatures within about 400-550° C., and at temperatures within 100° C. of one another.
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14 Claims
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1. A method of processing semiconductor wafers, comprising:
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loading a batch of semiconductor wafers into a processing chamber; depositing titanium nitride (TiN) onto the wafers in the processing chamber; and depositing silicon onto the wafers in the processing chamber by performing a thermal chemical vapor deposition at a silicon deposition temperature within about 20°
C. of a temperature for depositing titanium nitride, without removing the wafers from the processing chamber between said depositing steps, wherein the silicon precursor is trisilane. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification