EP0095048A2
Expired / Lapsed
EP
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Oligomer coated electronic circuit component and method of coating
Assignee: International Business Machines Corp
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Filing: 1983-04-26
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Granted: —
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Expires: 2003-04-26
Abstract
Abstract An electronic circuit having an electrically conductive pattern formed on a substrate (1) and having on at least one surface of the substrate a film (5) obtained from a soluble polymerizable oligomer of the formula: wherein D is wherein M is -C.C-, -C≡C-C≡C-. -0-. wherein R is an alkyl or aromatic group; wherein A is an aromatic group; wherein x is the number of appendant acetylenic groups and is an integer greater than two but less than 30, z is either zero or an integer, and y is an integer with the sum of y and z equal to x; and wherein n is an integer from 1 to 10. The substrate is coated by applying the above composition to the substrate and then hardening the composition by further polymerization. Preferred compositions contain the above described oligomer and certain plasticizers and/or toughening agents.
Inventors
- 👤 Roger J. Clark
- 👤 James Economy
- 👤 Mary A. Flanders
- 👤 John R. Susko
- 👤 Robin A. Wheater
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 20:43
CPC Classifications
H; H10; H10W; H10W70/00; H10W70/60; H10W70/67; H10W70/69; G; G03; G03F; G03F7/00; G03F7/004; G03F7/025; H10P; H10P14/00; H10P14/60; H10P14/68; H10P14/683; H10W70/695
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
128 words
An electronic circuitry component comprising: a substrate (1), an electrically conductive pattern formed on said substrate and coated by a continuous film (5), characterized by: said film being formed from a soluble polymerizable oligomer having a number average molecular weight of from 200 to 10,000, having more than two appendant acetylenic groups and having the formula: wherein D is wherein M is wherein R is an alkyl or aromatic group; wherein Ar is an aromatic group; wherein x is the number of appendant acetylenic groups and is an integer greater than 2 but less than 30, z is either zero or an integer, and y is an integer with the sum of y and z equal to x; and wherein n is an integer from 1 to 10.
Claim 2
Dependent Claim
128 words
An electronic circuitry component comprising: a substrate (1), an electrically conductive pattern formed on said substrate and coated by a continuous film (5), characterized by: said film being formed from a soluble polymerizable oligomer having a number average molecular weight of from 200 to 10,000, having more than two appendant acetylenic groups and having the formula: wherein D is wherein M is wherein R is an alkyl or aromatic group; wherein Ar is an aromatic group; wherein x is the number of appendant acetylenic groups and is an integer greater than 2 but less than 30, z is either zero or an integer, and y is an integer with the sum of y and z equal to x; and wherein n is an integer from 1 to 10.
Claim 3
Dependent Claim
16 words
The component of claim 1 wherein said oligomer has a molecular weight of 400 to 2000.
Claim 4
Dependent Claim
21 words
The component of claim 1 or 2 wherein at least 60% of the acetylenic groups of the oligomer are diacetylenic groups.
Claim 5
Dependent Claim
29 words
The component of any preceding claim wherein each oligomer molecule contains at least two diacetylenic groups and said groups constitute most of the appendant acetylenic groups of the oligomer.
Claim 6
Dependent Claim
18 words
The component of any preceding claim wherein said oligomer contains up to 20% by weight of ethynyl content.
Claim 7
Dependent Claim
13 words
The component of any preceding claim wherein said oligomer is obtained from 1,3,5-triethynylbenzene.
Claim 8
Dependent Claim
40 words
The component of any preceding claim wherein said oligomer has 6 to 20% free ethynyl groups per aromatic ring, a M of 1500 to 2500, a M w of 1000 to 1200, and a M n of 700 to 900.
Claim 9
Dependent Claim
26 words
The component of any preceding claim wherein said film is formed from a composition containing said oligomer and a plasticizer or a toughening agent or both.
Claim 10
Dependent Claim
49 words
The component of claim 8 wherein said plasticizer is selected from the group of diphenyldiacetylene, diphenylbutadiene, diphenylether, phenyltriethynyl silane, 4,4'-diethynyl diphenyl ether or mixtures thereof and said toughening agent is selected from the group of aromatic diphenylether, cyclized poly(arylacetylene) polymers, acrylonitrile polymers, polyimides, polyquinoxalines, polyesters, polysilicones or mixtures thereof.
Claim 11
Dependent Claim
22 words
The component of claim 9 wherein said toughening agent is selected from the group of aromatic diphenyl ether and cyclized poly(arylacetylene) polymers.
Claim 12
Dependent Claim
38 words
The component of claim 8, 9 or 10 where-a the plasticizer or toughening agent or both is employed in amounts of 10 to 75X by weight based upon the oligomer, or preferably in amounts of 25 to 50%.
Claim 13
Dependent Claim
25 words
The component of any preceding claim wherein the continuous film is formed from a composition which also contains a reactive acetylenic solvent for said oligomer.
Claim 14
Dependent Claim
24 words
The component of claim 12 wherein said acetylenic solvent is represented by the formula wherein R is H, halogen, lower alkyl, or lower alkoxy.
Claim 15
Dependent Claim
27 words
L4. The component of any of claims 1-11 wherein the continuous film is formed from a composition which also contains a non-reactive solvent, preferably an oxygen-containing solvent.
Claim 16
Dependent Claim
36 words
The component of claim 14 wherein said non-reactive solvent is selected from the group of alcohols, bis(2-methoxyethyl)ether, cyclohexanone, and I-methyl-2-pyrrolidinone, and said oligomer is present in amounts of 5 to 80 mg per ml of solvent.
Claim 17
Dependent Claim
17 words
The component of claim 15 wherein said alcohol is selected from the group of 1-butanol and 2-ethoxyethanol.
Claim 18
Independent Claim
138 words
A method for providing a coating (5) on a substrate (1) containing an electrically conductive pattern which method comprises coating at least one major surface of said substrate with a composition containing a soluble polymerizable oligomer and then hardening the composition by further polymerization, characterized by: said oligomer having an average molecular weight of 200 to 10,000, having more than two appendant acetylenic groups and having the formula: wherein D is wherein M is wherein R is an alkyl or aromatic group; wherein Ar is an aromatic group; x is the number of appendant acetylenic groups and is an integer greater than 2 but less than 30, z is either zero or an integer, y is an integer with the sum of y and z equal to x; and wherein n is an integer from 1 to 10.
Claim 19
Independent Claim
138 words
A method for providing a coating (5) on a substrate (1) containing an electrically conductive pattern which method comprises coating at least one major surface of said substrate with a composition containing a soluble polymerizable oligomer and then hardening the composition by further polymerization, characterized by: said oligomer having an average molecular weight of 200 to 10,000, having more than two appendant acetylenic groups and having the formula: wherein D is wherein M is wherein R is an alkyl or aromatic group; wherein Ar is an aromatic group; x is the number of appendant acetylenic groups and is an integer greater than 2 but less than 30, z is either zero or an integer, y is an integer with the sum of y and z equal to x; and wherein n is an integer from 1 to 10.
Claim 20
Dependent Claim
28 words
The method of claim 17 wherein said composition is subjected to an elevated temperature of from 150 to 250°C, for 1/2 to 5 hours, to cause further polymerization.
Claim 21
Dependent Claim
26 words
The method of claim 17 or 18 wherein the thickness of said coating after polymerization is 5 to 50 micrometers, or preferably 12 to 25 micrometers.
Claim 22
Dependent Claim
158 words
A composition capable of forming a continuous film comprising a soluble polymerizable oligomer characterized by: said oligomer having a number average weight of from 200 to 10,000, having more than two appendant acetylenic groups and having the formula: wherein D is wherein M is wherein R is an alkyl or aromatic group; wherein Ar is an aromatic group; wherein x is the number of appendant acetylenic groups and is an integer greater than 2 but less than 30, z is either zero or an integer, and y is an integer with the sum of y and z equal to x; and wherein n is an integer from 1 to 10; and said composition further comprising either a plasticizer selected from the group of diphenyldiacetylene, diphenylbutadiene, diphenylether, phenyltriethynyl silane, 4,4'-diethynyldiphenylether or mixtures thereof; or a toughening agent selected from the group of cyclized poly(arylacetylene) polymer, aromatic diphenylether, acrylonitrile polymer, polyimides, polyquinoxalines, polyesters or polysilicones, or mixtures thereof; or both.
Claim 23
Dependent Claim
158 words
A composition capable of forming a continuous film comprising a soluble polymerizable oligomer characterized by: said oligomer having a number average weight of from 200 to 10,000, having more than two appendant acetylenic groups and having the formula: wherein D is wherein M is wherein R is an alkyl or aromatic group; wherein Ar is an aromatic group; wherein x is the number of appendant acetylenic groups and is an integer greater than 2 but less than 30, z is either zero or an integer, and y is an integer with the sum of y and z equal to x; and wherein n is an integer from 1 to 10; and said composition further comprising either a plasticizer selected from the group of diphenyldiacetylene, diphenylbutadiene, diphenylether, phenyltriethynyl silane, 4,4'-diethynyldiphenylether or mixtures thereof; or a toughening agent selected from the group of cyclized poly(arylacetylene) polymer, aromatic diphenylether, acrylonitrile polymer, polyimides, polyquinoxalines, polyesters or polysilicones, or mixtures thereof; or both.
Claim 24
Dependent Claim
12 words
The composition of claim 20 wherein said oligomer is obtained from 1,3,5-triethynylbenzene.
Claim 25
Dependent Claim
52 words
The composition of claim 20 or 21 wherein said oligomer has a molecular weight of 400 to 2000, at least 60% of the acetylenic groups thereof are diacetylenic groups, each molecule of the oligomer contains at least two diacetylenic groups, and the oligomer contains up to 20% by weight of ethynyl content.
Claim 26
Dependent Claim
44 words
The composition of claim 20, 21 or 22 wherein said oligomer has about 6 to 20% free ethynyl groups per aromatic ring, a M z of 1500 to 2500, a M w of 1000 to 1200, and a M n of 700 to 900.
References Cited (Backward Citations)
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