Claims
- 1. A silicon nitride deposition method comprising the steps of:providing a substrate surface including one or more component surfaces; predepositing at least a monolayer of silicon on the one or more component surfaces of the substrate surface resulting in a substantially native oxide free uniform predeposited silicon substrate surface; and depositing a silicon nitride layer on the predeposited silicon substrate surface after the silicon predeposition.
- 2. The method according to claim 1, wherein silicon nitride nucleation at the substrate surface having silicon predeposited thereon is performed at a substantially equivalent rate on the one or more component surfaces.
- 3. The method according to claim 1, wherein an incubation time for the start of silicon nitride nucleation being decreased relative to the incubation time for the start of silicon nitride nucleation when silicon nitride is deposited without predeposition of silicon on the substrate surface.
- 4. The method according to claim 1, wherein the predeposition step includes the step of predepositing the silicon using one of silane, disilane, silicon tetrachloride, dichlorosilane, trichlorosilane.
- 5. The method according to claim 2, wherein the component surfaces include one or more of tetraethylorthosilicate, borophosphosilicate glass, silicon, polysilicon, other doped silicon or polysilicon surfaces, other doped oxides, thermal silicon dioxide, chemical vapor deposited silicon dioxide, and plasma enhanced chemical vapor deposited silicon dioxide.
- 6. The method according to claim 1, wherein the substrate surface is moved through air after native oxide removal to a deposition chamber, the silicon is predeposited in the deposition chamber after which the silicon nitride layer is deposited in the same deposition chamber.
- 7. The method according to claim 1, further including the step of removing native oxide from the substrate surface in a cluster tool, and wherein the silicon is predeposited after which the silicon nitride layer is deposited in the same cluster tool.
- 8. The method according to claim 1, wherein the predeposition step includes predepositing the at least a monolayer of silicon on portions of two or more component surfaces of the substrate surface resulting in the predeposited silicon substrate surface.
- 9. The method according to claim 8, wherein silicon nitride nucleation at the substrate surface having silicon predeposited thereon is performed at a substantially equivalent rate on the two or more component surfaces.
- 10. The method according to claim 8, wherein the predeposition step includes the step of predepositing the silicon using one of silane, disilane, silicon tetrachloride, dichlorosilane, trichlorosilane.
- 11. The method according to claim 10, wherein the predeposition step includes the step of predepositing the silicon using dichlorosilane.
- 12. The method according to claim 8, wherein the component surfaces include two or more of tetraethylorthosilicate, borophosphosilicate glass, silicon, polysilicon, other doped silicon or polysilicon surfaces, other doped oxides, thermal silicon dioxide, chemical vapor deposited silicon dioxide, and plasma enhanced chemical vapor deposited silicon dioxide.
Parent Case Info
This is a continuation of application Ser. No. 08/655,728, filed May 30, 1996, (allowed) which is incorporated herein by reference.
US Referenced Citations (8)
Foreign Referenced Citations (1)
Number |
Date |
Country |
235535 |
Sep 1995 |
JP |
Non-Patent Literature Citations (1)
Entry |
Seiichi Takami, et al., “Monolayer nitridation of silicon surfaces by a dry chemical process using dimethylhydrazine or ammonia”, Appl. Phys. Lett., 66 (12), 1527-1529 (1995). |
Continuations (1)
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Number |
Date |
Country |
Parent |
08/655728 |
May 1996 |
US |
Child |
08/955793 |
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US |