IP Library › Granted Patent US 11,149,349
Granted Patent B2
US 11,149,349 · App. 16/338,915 · Granted Oct 19, 2021

Process for the generation of thin silicon-containing films

Inventors: Maraike Ahlf (Ludwigshafen, DE); David Dominique Schweinfurth (Ludwigshafen, DE); Lukas Mayr (Ludwigshafen, DE); Kinga Izabela Leszczynska (Saarbrücken, DE); David Scheschkewitz (Saarbrücken, DE)
Assignee: BASF SE
C23C16/45553C23C16/325C23C16/345C23C16/38C23C16/401
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 11,149,349
App. No.
16/338,915
Granted
Oct 19, 2021
Kind
B2
Abstract

The present invention is in the field of processes for the generation of thin inorganic films on substrates. In particular, the present invention relates to a process comprising depositing the compound of general formula (I) onto a solid substrate, wherein R 1 , R 2 , R 3 , R 4 , and R 5 is hydrogen, an alkyl group, an alkenyl group, an aryl group or a silyl group, wherein not more than three of R 1 , R 2 , R 3 , R 4 , and R 5 are hydrogen, X is a group which binds to silicon, m is 1 or 2, n is 0, 1, or 2, and Si is in the oxidation state +2.

Claims (21)

1. A process, comprising depositing a compound of formula (I):

onto a solid substrate,

wherein:

R1, R2, R3, R4, and R5 independently represent hydrogen, an alkyl group, an alkenyl group, an aryl group or a silyl group, wherein not more than three of R1, R2, R3, R4, and R5 are hydrogen,

X is an amine, an aryl group, an imine ligand, or an amidine ligand,

m is 1,

n is 1, and

Si is in the oxidation state +2.

2. The process according to claim 1 , wherein three of R1, R2, R3, R4, and R5 are hydrogen and the remaining two are groups with branching at the atom which is attached to the cyclopentadienyl ring, or not more than two of R1, R2, R3, R4, and R5 are hydrogen.

3. The process according to claim 1 , wherein R1, R2, R3, R4, R5 is methyl, ethyl, n-propyl, iso-propyl, n-butyl, iso-butyl, sec-butyl, tert-butyl, trimethylsilyl or triethylsilyl.

4. The process according to claim 1 , wherein m is 2 and n is 0.

5. The process according to claim 1 , wherein the compound of formula (I) is deposited from gaseous or aerosol phase onto the solid substrate.

6. The process according to claim 1 , wherein the compound of formula (I) is deposited from solution onto the solid substrate.

7. The process according to claim 1 , wherein the deposited compound of formula (I) is decomposed by removing all ligands L and X.

8. The process according to claim 1 , wherein a sequence of depositing the compound of formula (I) onto a solid substrate and decomposing the deposited compound of formula (I) is performed at least twice.

9. A process, comprising forming a film of the compound of general formula (I), wherein:

R1, R2, R3, R4, and R5 is hydrogen, an alkyl group, an alkenyl group, an aryl group or a silyl group, wherein not more than three of R1, R2, R3, R4, and R5 are hydrogen,

X is an amine, an aryl group, an imine ligand, or an amidine ligand,

m is 1,

n is 1, and

Si is in the oxidation state +2.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 28, 2019
From: UNIVERSITÄT DES SAARLANDES
To: BASF SE
Reel/Frame 049292/0984 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 2, 2019
From: AHLF, MARAIKE; SCHWEINFURTH, DAVID DOMINIQUE; MAYR, LUKAS
To: BASF SE
Reel/Frame 048770/0713 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 2, 2019
From: LESZCZYNSKA, KINGA IZABELA; SCHESCHKEWITZ, DAVID
To: UNIVERSITÄT DES SAARLANDES
Reel/Frame 048771/0944 →
Priority Claims (1)
EP 16195487 · Oct 25, 2016 · regional
Continuity (1)
Related Publication 20190309417A1 · Oct 10, 2019