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US5141817A Expired / Lapsed US ⏱️ 0.0 years remaining

Dielectric structures having embedded gap filling RIE etch stop polymeric materials of high thermal stability

Assignee: International Business Machines Corp
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Filing: 1989-06-13
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Granted: 1992-08-25
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Expires: 2009-06-13
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Abstract

Abstract Structures containing a dielectric material having a polymeric reactive ion etch barrier embedded therein. The preferred dielectric materials are polymers, preferably polyimide materials. The RIE etch barrier is a copolymer having an aromatic component having high thermal stability and having a cross-linking component selected from metallacyclobutane, metallabutene and vinyl groups. The etch barrier is deposited as a solvent free liquid which can fill gaps between the dielectric material and electrical conductors embedded therein. The liquid polymer is cured to a solid insoluble state. The structures with electrical conductors embedded therein are useful for electronic applications.

Inventors

  • 👤 Edward D. Babich
  • 👤 Michael Hatzakis
  • 👤 Richard P. McGouey
  • 👤 Sharon L. Nunes
  • 👤 Jurij R. Paraszczak
  • 👤 Jane M. Shaw

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 05:27
CPC Classifications
H; H10; H10W; H10W99/00; C; C08; C08L; C08L83/00; C08L83/14; H10W70/00; H10W70/60; H10W70/62; H10W70/66; H10W70/67; H10W70/69; H10W70/695; Y; Y10; Y10S; Y10S428/00; Y10S428/901; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31663; Y10T428/31721

Claims Analysis

Total Claims: 16
Claim 1
Independent Claim 75 words
A structure comprising: a dielectric body; a polymeric body embedded within said dielectric body; said polymeric body containing an aromatic constituent containing at least one atom selected from the group of Si and Ge; said polymeric body containing a cross-linking agent selected from the group consisting of a metallocyclobutane group and a vinyl group; said metallocyclobutane group and said vinyl group containing at least one atom selected from the group consisting of Si and Ge.
Claim 2
Dependent Claim 75 words
A structure comprising: a dielectric body; a polymeric body embedded within said dielectric body; said polymeric body containing an aromatic constituent containing at least one atom selected from the group of Si and Ge; said polymeric body containing a cross-linking agent selected from the group consisting of a metallocyclobutane group and a vinyl group; said metallocyclobutane group and said vinyl group containing at least one atom selected from the group consisting of Si and Ge.
Claim 3
Dependent Claim 15 words
The structure of claim 1, further including an electrical conductor embedded in said dielectric body.
Claim 4
Dependent Claim 34 words
The structure of claim 2, wherein there are gaps between at least a part of said electrical conductor and said dielectric body, said gaps being substantially filled with a part of said polymeric body.
Claim 5
Dependent Claim 13 words
The structure of claim 1, wherein said dielectric body is a polymeric material.
Claim 6
Dependent Claim 13 words
The structure of claim 4, wherein said polymeric material is a polyimide material.
Claim 7
Dependent Claim 15 words
The structure of claim 1, wherein said dielectric body chemically adheres to said polymer body.
Claim 8
Dependent Claim 26 words
The structure of claim 2 wherein said electrical conductor is selected from the group consisting of Au, Ag, Mo, Al, Cu, Cr, Co and alloys thereof.
Claim 9
Dependent Claim 17 words
The structure of claim 1, wherein said polymeric body is a layer embedded within said dielectric body.
Claim 10
Dependent Claim 19 words
The structure of claim 2, further including an electronic device electrically connected to the conductor patter in said body.
Claim 11
Dependent Claim 258 words
The structure of claim 1 wherein said polymeric body is a cross linked form of a compound having structural formula: ##STR18## wherein Q is selected from the group consisting of groups having structural formula: ##STR19## where R is a divalent aromatic radical; wherein R 1 is selected from the group consisting of H, alkyl, aryl and alkenyl radicals; wherein each R 2 is selected from the group consisting of alkyl radicals, aryl radicals, alkenyl radicals and siloxy radicals having structural formula: ##STR20## wherein each R 4 is selected from the group consisting of H, alkyl radicals, aryl radicals, alkenyl radicals and silyl radicals having structural formula: ##STR21## wherein each R 5 is selected from the group of H, alkyl, aryl and alkenyl radicals; wherein R 6 is selected from the group consisting of alkyl, aryl and alkenyl radicals; wherein R 7 is selected from the group consisting of alkyl, aryl and alkenyl radicals; wherein R 9 is selected from the group consisting of alkyl, aryl and alkenyl radicals; wherein R 10 is selected from the group consisting of alkenyl radicals; wherein Z is selected from the group consisting of aromatic radicals, wherein Z forms a six number carbon ring with the two R 4 to which it is bonded; wherein each M is selected from the group consisting of Si, and Ge atoms; wherein t has a value such that said compound has a molecular weight from about 1,000 to about 30,000; wherein m is at least 1; and wherein n is greater than or equal to 0.
Claim 12
Dependent Claim 34 words
The structure of claim 2, wherein the terminal OR 1 groups of said compound are substituted by groups having the structural formula: ##STR22## wherein R 8 is selected from alkyl and an aryl group.
Claim 13
Dependent Claim 23 words
The structure of claim 10, wherein R is selected from the group consisting of divalent phenylene, naphthalene, anthracene, adamantine, ferrocene and carborane radicals.
Claim 14
Dependent Claim 36 words
The structre of claim 1, wherein said polymeric body is a reaction producte of p(bis-hydroxydimethylsilyl)benzene and at least one member selected from the group consisting of 1,1-dichloro-1-silacyclobutane, 1,3-dichloro-1,3-dimethyl-1,3-disilacyclobutane, 1,1-dichloro-3,3,dimethyl-1,3-disilacyclobutane, 1,1-dichloro-2,3-benzo-1-silacyclobutene, 1,1-dichloro-3-methyl-1-silacyclobutane, 1,1-dichloro-2-phenyl-1-silacyclobutane, 1,1-dichloro-3,3-diphenyl-1,3-disilacyclobutane, 1,1-dichloro-1-germacyclobutane and 1,1-dichloro-3,3-dimethyl-1-sila-3-germacyclobutane.
Claim 15
Dependent Claim 18 words
The structure of claim 1, wherein said polymeric body is a reaction product of p(bis-hydroxy-dimethylsilylbenzene), dimethyldichlorosilane and 1,1-dichloro-1-silacyclobutane.
Claim 16
Dependent Claim 19 words
The structure of claim 1, wherein said polymeric body is a reaction product of p(bis-hydroxydimethylsilyl)benzene, dimethyldichlorosilane, 1,1-dichloro-1-silacyclobutane and trimethylchlorosilane.

References Cited (Backward Citations)

US2739638A Cited
US3325530A Cited
US3445495A Cited
US3440191A Cited
US3464937A Cited
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US3719696A Cited
US4795680A Cited
US4835238A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1995-08-25 1996-02-24 1996-08-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1999-08-25 2000-02-24 2000-08-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2003-08-25 2004-02-24 2004-08-25 $7700.00 Window Closed / Lapsed

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