Patent US5468790A successfully refreshed from Google Patents.
US5468790A
Expired / Lapsed
US
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Triazine polymer and use thereof
Assignee: International Business Machines Corp
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Filing: 1994-09-13
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Granted: 1995-11-21
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Expires: 2014-09-13
Abstract
Abstract Triazine polymers are obtained reacting (a) monocyanate; and (b) dicyanate and/or prepolymers thereof. The polymers are useful in forming interconnection structures for forming an integrated semiconductor device to a carrier substrate.
Inventors
- 👤 Konstantinos I. Papathomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:06
CPC Classifications
C; C08; C08G; C08G73/00; C08G73/06; C08G73/0622; C08G73/0638; C08G73/065; C08G73/0655; C08L; C08L79/00; C08L79/04; H; H10; H10W; H10W74/00; H10W74/01; H10W74/012; H10W74/10; H10W74/15; H10W72/00; H10W72/851; H10W72/853; H10W72/856
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
126 words
A composition containing a triazine polymer that comprises a reaction product of (a) monocyanate; and (b) dicyanate, prepolymers thereof or mixtures thereof, wherein the amount of (a) is about 5 to about 50% by weight of the total of (a) and (b), and correspondingly, the amount of (b) is about 50% to about 95% by weight based upon the amount of (a) and (b); and filler having a maximum particle size of about 49 microns and being substantially free of alpha particle emissions; wherein the amount of the polymer is about 30% to about 50% by weight of the total of polymer and filler and correspondingly, the amount of filler is about 50% to about 70% by weight based upon the weight of polymer and filler.
Claim 2
Dependent Claim
126 words
A composition containing a triazine polymer that comprises a reaction product of (a) monocyanate; and (b) dicyanate, prepolymers thereof or mixtures thereof, wherein the amount of (a) is about 5 to about 50% by weight of the total of (a) and (b), and correspondingly, the amount of (b) is about 50% to about 95% by weight based upon the amount of (a) and (b); and filler having a maximum particle size of about 49 microns and being substantially free of alpha particle emissions; wherein the amount of the polymer is about 30% to about 50% by weight of the total of polymer and filler and correspondingly, the amount of filler is about 50% to about 70% by weight based upon the weight of polymer and filler.
Claim 3
Dependent Claim
47 words
The composition of claim 1 wherein the amount of (a) is about 5 to about 40% by weight of the total of (a) and (b), and correspondingly, the amount of (b) is about 60% to about 95% by weight based upon the amount of (a) and (b).
Claim 4
Dependent Claim
26 words
The composition of claim 2 wherein said monocyanate is selected from the group consisting of nonylphenyl cyanate; dinonyl phenyl cyanate, cumyl phenyl cyanate and mixtures thereof.
Claim 5
Dependent Claim
12 words
The composition of claim 3 wherein said dicyanate is 4,4'-ethylidene bisphenol dicyanate.
Claim 6
Dependent Claim
18 words
The composition of claim 1 wherein further includes about 0.5% to about 3% by weight of a surfactant.
Claim 7
Dependent Claim
39 words
The composition of claim 1 that exhibits a viscosity of 25° C. (Brookfield cone and plate spindle 51, 20 RPM or equivalent) of about 2000 to about 3000 centipoise and that is curable at about 200° C. or less.
Claim 8
Dependent Claim
18 words
The composition of claim 1 which further includes about 1% to about 1.4% by weight of a surfactant.
Claim 9
Dependent Claim
15 words
The composition of claim 1 wherein the amount of filler is about 55% by weight.
Claim 10
Dependent Claim
18 words
The composition of claim 1 wherein the viscosity at 25° C. is about 2000 to about 20,000 centipoise.
Claim 11
Dependent Claim
26 words
The composition of claim 1 wherein said filler is an inorganic filler selected from the group of silica, quartz and fused silica coated with coupling agents.
Claim 12
Dependent Claim
19 words
The composition of claim 1 wherein said filler has emission rate of less than 0.005 alpha particles/cm 2 -hr.
Claim 13
Dependent Claim
18 words
The composition of claim 1 wherein said filler has particle sizes of about 0.5 to about 49 micrometers.
Claim 14
Dependent Claim
12 words
The composition of claim 1 which is free of unreactive organic solvents.
Claim 15
Dependent Claim
10 words
The composition of claim 1 which further includes a catalyst.
Claim 16
Dependent Claim
21 words
The composition of claim 5 wherein said surfactant is selected from the group consisting of silanes and non-ionic surface active agents.
Claim 17
Dependent Claim
14 words
The composition of claim 5 wherein said surfactant is a non-ionic alkylphenyl polyether alcohol.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1998-11-20 | 1999-05-22 | 1999-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-11-20 | 2003-05-22 | 2003-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-11-20 | 2007-05-22 | 2007-11-21 | $7700.00 | Window Closed / Lapsed |