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US5384076A
Expired / Lapsed
US
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Resistive film-forming composition and electronic components using the same
Assignee: Fujifilm Business Innovation Corp
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Filing: 1992-03-03
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Granted: 1995-01-24
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Expires: 2012-03-03
Abstract
Abstract A resistive film-forming composition to be coated on a substrate and calcined to form a resistive film is disclosed, which contains an organic iridium compound selected from a compound represented by formula (I): ##STR1## wherein R 1 represents a hydrogen atom, an alkyl group, or an alkoxy group, a compound represented by formula (II): Ir(R.sup.4 COCR.sup.3 COR.sup.5).sub.3 wherein R 3 represents a hydrogen atom or an alkyl group; and R 4 and R 5 each represent an alkyl group. A uniform resistive film having excellent electrical characteristics can be formed with good adhesion to a substrate.
Inventors
- 👤 Katsuhiro Sato
- 👤 Kaoru Torikoshi
- 👤 Hiroyuki Tanaka
- 👤 Fumiaki Tambo
- 👤 Yutaka Akasaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:15
CPC Classifications
H; H01; H01C; H01C17/00; H01C17/06; H01C17/065; H01C17/06506; H01C1/00; H01C1/02
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
77 words
A resistive film-forming composition to be coated on a substrate and calcined to form a resistive film, which contains an organic iridium compound selected from a compound represented by formula (I): ##STR5## wherein R 1 represents a hydrogen atom, an alkyl group, or an alkoxy group, a compound represented by formula (II): Ir(R.sup.4 COCR.sup.3 COR.sup.5).sub.3 wherein R 3 represents a hydrogen atom or an alkyl group; and R 4 and R 5 each represent an alkyl group.
Claim 2
Dependent Claim
77 words
A resistive film-forming composition to be coated on a substrate and calcined to form a resistive film, which contains an organic iridium compound selected from a compound represented by formula (I): ##STR5## wherein R 1 represents a hydrogen atom, an alkyl group, or an alkoxy group, a compound represented by formula (II): Ir(R.sup.4 COCR.sup.3 COR.sup.5).sub.3 wherein R 3 represents a hydrogen atom or an alkyl group; and R 4 and R 5 each represent an alkyl group.
Claim 3
Dependent Claim
21 words
A resistive film-forming composition as claimed in claim 1, which further contains a solvent capable of dissolving said organic iridium compound.
Claim 4
Dependent Claim
15 words
A resistive film-forming composition as claimed in claim 2, which further contains a viscosity adjustor.
Claim 5
Dependent Claim
25 words
A resistive film-forming composition as claimed in claim 3, which further contains an organometallic or organo-non-metallic compound for adjustment of resistivity of a resistive film.
Claim 6
Dependent Claim
37 words
A resistive film-forming composition as claimed in claim 4, wherein said organometallic or organo-non-metallic compound contains at least one element selected from the group consisting of silicon, bismuth, lead, aluminum, zirconium, calcium, tin, boron, titanium, and barium.
Claim 7
Dependent Claim
33 words
A resistive-film-forming composition as claimed in claim 1, wherein said organic iridium compound is contained in an amount of 1 to 50 wt % based on the weight of the resistive film-forming composition.
Claim 8
Dependent Claim
32 words
A resistive film-forming composition as claimed in claim 5, wherein said organometallic or organo-non-metallic compound is contained in an amount of 0.1 to 10 moles per mole of said organic iridium compound.
Claim 9
Dependent Claim
15 words
A resistive film-forming composition as claimed in claim 1, wherein said iridium compound is ##STR6##
Claim 10
Dependent Claim
19 words
A resistive film-forming composition as claimed in claim 1, wherein the organic iridium compound is Ir(R.sup.4 COCR.sup.3 COR.sup.5).sub.3 (II)
Claim 11
Dependent Claim
55 words
A resistive film-forming composition as claimed in claim 1, wherein said organic iridium compound is a tris benzylideneanthranilate selected from the group consisting of Iridium propionate, Iridium n-butylate, Iridium 2-methylpropionate, Iridium n-pentanoate, Iridium 2-methylbutyrate, Iridium 3-methylbutyrate, Iridium pivalate, Iridium n-hexanoate, Iridium n-octanoate, Iridium n-decanoate, Iridium n-dodecanoate, Iridium n-tetradecanoate, Iridium n-hexadecanoate, Iridium n-octadecanoate and Iridium oleate.
Claim 12
Dependent Claim
56 words
A resistive film-forming composition as claimed in claim 1, wherein said organic iridium compound is a dionate selected from the group consisting of Iridium acetylacetonate, Iridium 3,5-heptanedionate, Iridium 4,6-nonanedionate, Iridium 2,6-dimethyl-3,5-heptanedionate, Iridium 5,7-undecanedionate, Iridium 3,7-dimethyl-4,6-nonanedionate, Iridium 2,8-dimethyl-4,6-nonanedionate, Iridium 2,2,6,6-tetramethyl-3,5-heptanedionate, Iridium 3-methyl-2,4-pentanedionate, Iridium 4-methyl-3,5-pentanedionate, Iridium 5-methyl-4,6-nonanedionate, Iridium 2,4,6-trimethyl-3,5-pentanedionate, Iridium 6-methyl-5,7-undecanedionate, Iridium 3,5,7-trimethyl-4,6-nonanedionate, Iridium 2,5,8-trimethyl-4,6-nonanedionate, and Iridium 2,2,4,6,6-pentamethyl-3,5-heptanedionate.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-01-23 | 1998-07-25 | 1999-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-01-23 | 2002-07-25 | 2003-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-01-23 | 2006-07-25 | 2007-01-24 | $7700.00 | Window Closed / Lapsed |