IP Library Patent Application 18293208
Patent Application
App. No. 18/293,208

FLEXIBLE LAMINATE MATERIAL

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Patent No.
US None
App. No.
18/293,208
Abstract

A laminate article includes a dielectric substrate including a perfluorocopolymer matrix comprising a fluorinated perfluorocopolymer and a non fluorinated perfluorocopolymer; a quartz fabric embedded in the perfluorocopolymer matrix; and an additive material dispersed in the perfluorocopolymer matrix, in which the additive material is capable of absorbing ultraviolet light; and a conductive cladding disposed on a surface of the dielectric substrate.

Claims (83)

1 . A laminate article comprising:

a dielectric substrate comprising:

a perfluorocopolymer matrix comprising a fluorinated perfluorocopolymer and a non-fluorinated perfluorocopolymer;

a quartz fabric embedded in the perfluorocopolymer matrix; and

an additive material dispersed in the perfluorocopolymer matrix, in which the additive material is capable of absorbing ultraviolet light; and

a conductive cladding disposed on a surface of the dielectric substrate.

2 . The laminate article of claim 1 , in which the laminate article has a thickness of between 20 μm and 200 μm.

3 . The laminate article of claim 2 , in which the thickness of the laminate article is between 30 μm and 90 μm.

4 . The laminate article of claim 3 , in which the thickness of the laminate article is between 30 μm and 60 μm.

5 . The laminate article of claim 1 , in which the dielectric substrate has a dielectric constant at 10 GHz of between 2.10 and 2.50.

6 . The laminate article of claim 5 , in which the dielectric constant of the dielectric substrate is between 2.10 and 2.30.

7 . The laminate article of claim 1 , in which the dielectric substrate has a thermal coefficient of dielectric constant with a value of between −250 to +50 ppm/° C. over a temperature range of 0 to 100° C.

8 . The laminate article of claim 1 , in which the dielectric substrate has a dissipation factor at 10 GHz of less than 0.001.

9 . The laminate article of claim 8 in which the dielectric substrate has a dissipation factor at 10 GHz of between 0.0006 and 0.001.

10 . The laminate article of claim 9 , in which the dissipation factor of the dielectric substrate at 10 GHz is between 0.0006 and 0.0008.

11 . The laminate article of any of the preceding claims , in which the laminate article has a planar shape defining an X-Y plane, and in which a coefficient of thermal expansion of the laminate article in the X-Y plane is between 5 and 25 ppm/° C.

12 . The laminate article of claim 11 , in which the coefficient of thermal expansion of the laminate article in the X-Y plane is between 14 and 20 ppm/° C.

13 . The laminate article of claim 11 , in which the coefficient of thermal expansion of the laminate article in the X-Y plane is between 16 and 22 ppm/° C.

14 . The laminate article of claim 1 , in which the fluorinated perfluorocopolymer comprises a fluorinated tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer and in which the non-fluorinated perfluorocopolymer comprises a non-fluorinated tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer.

15 . The laminate article of claim 1 , in which the perfluorocopolymer matrix comprises between 50 and 90 weight percent of the fluorinated perfluorocopolymer.

16 . The laminate article of claim 15 , in which the perfluorocopolymer matrix comprises between 10 and 50 weight percent of the non-fluorinated perfluorocopolymer.

17 . The laminate article of claim 1 , in which a number of carboxyl end groups per million carbon atoms in the perfluorocopolymer matrix is sufficient for the laminate article to form no conductive anodic filaments (CAF).

18 . The laminate article of claim 1 , in which a number of carboxyl end groups per million carbon atoms in the perfluorocopolymer matrix provides the laminate article with a peel strength between the dielectric substrate and the conductive cladding of greater than 2 lb/inch.

19 . The laminate article of claim 1 , in which the number of carboxyl end groups per million carbon atoms in the perfluorocopolymer matrix is between 30 and 70.

20 . The laminate article of claim 1 , in which the fluorinated perfluorocopolymer has 5 or fewer carboxyl end groups per million carbon atoms.

21 . The laminate article of claim 1 , in which the non-fluorinated perfluorocopolymer has between 100 and 300 carboxyl end groups per million carbon atoms.

22 . The laminate article of claim 1 , in which the perfluorocopolymer matrix has a melt flow rate (MFR) of between 10 g/10 minutes and 30 g/10 minutes.

23 . The laminate article of claim 1 , in which the perfluorocopolymer matrix has a solder float resistance of at least 10 seconds at 288° C.

24 . The laminate article of claim 1 , in which the quartz fabric has a basis weight of less than 50 g/m 2 .

25 . The laminate article of claim 24 , in which the basis weight of the quartz fabric is less than 25 g/m 2 .

26 . The laminate article of claim 1 , in which the quartz fabric has a thickness between 10 μm and 30 μm.

27 . The laminate article of claim 1 , in which the quartz fabric includes an aminosilane or methacrylate silane surface chemistry treatment.

28 . The laminate article of claim 1 , in which the quartz fabric comprises a plasma-treated or corona-treated quartz fabric.

29 . The laminate article of claim 1 , in which the quartz fabric is impregnated with a fluoropolymer.

30 . The laminate article of claim 1 , in which the quartz fabric comprises a fluoropolymer coating.

31 . The laminate article of claim 1 , in which the quartz fabric is pretreated with a fluoropolymer treatment prior to incorporation into the laminate article.

32 . The laminate article of claim 1 , in which the dielectric substrate comprises between 5 and 20 volume percent of the quartz fabric and between 80 and 95 volume percent of the perfluorocopolymer matrix.

33 . The laminate article of claim 1 , in which a water contact angle of the quartz fabric is between 0° and 60°.

34 . The laminate article of claim 1 , in which the additive material comprises inorganic particles.

35 . The laminate article of claim 34 , in which the inorganic particles comprise particles of cerium oxide, titanium dioxide, silicon dioxide, barium titanate, calcium titanate, or zinc oxide.

36 . The laminate article of claim 1 , in which the additive material comprises a thermoset polymer.

37 . The laminate article of claim 1 , in which the additive material is present in the perfluorocopolymer matrix at a volume percent of less than 2%.

38 . The laminate article of claim 1 , in which the additive material is dispersed homogeneously throughout the perfluorocopolymer matrix.

39 . The laminate article of claim 1 , in which the conductive cladding is disposed on two opposing surfaces of the dielectric substrate.

40 . The laminate article of claim 1 , in which the conductive cladding comprises a copper foil.

41 . The laminate article of claim 40 , in which the copper foil is disposed on the surface of the dielectric substrate by a lamination process.

42 . The laminate article of claim 1 , in which the conductive cladding has a thickness of less than 72 μm.

43 . The laminate article of claim 42 , in which the thickness of the conductive cladding is between 5 μm and 18 μm.

44 . The laminate article of claim 1 , in which the conductive cladding has a root mean square (RMS) roughness of less than 1 μm.

45 . The laminate article of claim 44 , in which the RMS roughness of the conductive cladding is less than 0.5 μm.

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Assignments (2)
SECURITY INTEREST Recorded Apr 10, 2025
From: THE CHEMOURS COMPANY FC, LLC
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 070812/0603 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 30, 2024
From: LIAO, RONG; AMOS, BRIAN DAVID; FRANKOSKY, JOHN C.; HULSEBOSCH, FRANCISCUS CORNELIS JOANNES; KENNEDY, SCOTT DAVID; WANG, YING; YOUNG, ROBERT THOMAS; XIAOLIN, LIU
To: THE CHEMOURS COMPANY FC, LLC.
Reel/Frame 066290/0059 →