Patent ID: 11879067
Assignee: TOKYO ELECTRON LIMITED
Field: Semiconductors (Electrical engineering)
Classification: CPC C  H  B  G | IPC B  C  H

Claim 6:
7. A film forming apparatus configured to form a film on a substrate top face including a first region in which a metal or semiconductor is exposed and a second region in which an insulator is exposed, the film forming apparatus comprising:
a unit configured to form a self-assembled monolayer (SAM) film of a perfluoropolyether group-containing compound represented by formula (1) or (2) below on the first region; and
a unit configured to form a predetermined film on the second region after the SAM film is formed, wherein
the metal or semiconductor is at least one selected from the group consisting of tungsten, ruthenium, germanium, silicon, and molybdenum,
the insulator is at least one selected from the group consisting of aluminum oxide, hafnium oxide, and zirconia,
formulae (1) and (2) are as follows:

(Rf-PFPE)α′-X-(A)α  (1)

(A)α-X-PFPE-X-(A)α  (2)

in formula (1), Rf is an alkyl group having 1 to 16 carbon atoms optionally substituted with one or more fluorine atoms, and
in formulae (1) and (2):
PFPE is —(OC6F12)a—(OC5F10)b—(OC4F8)c—(OC3F6)d—(OC2F4)e—(OCF2)f—, where a, b, c, d, e, and f are integers of 0 or more and 200 or less, and the sum of a, b, c, d, e, and f is at least 1,
A is —COOH,
X is a single bond or a di- to deca-valent organic group, and
α is an integer of 1 to 9, and α′ is an integer of 1 to 9.