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EP0132740A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Method of forming a dielectric substrate

Assignee: International Business Machines Corp
•
Filing: 1984-07-16
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Granted: —
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Expires: 2004-07-16
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Abstract

Abstract A method of forming a dielectric substrate is disclosed which method comprises admixing crystalline cordierite particles with a binder and solvent therefor, casting the mixture into a sheet, drying the cast sheet to form a self-supporting green sheet and then heating the green sheet to burn out the binder and sinterthe crystalline cordierite particles together.

Inventors

  • 👤 Carl Louis Eggerding
  • 👤 Edward August Giess

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-08 19:03
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/622; C04B35/626; C04B35/63; C04B35/632; C04B35/634; C04B35/63404; C04B35/63416; C04B35/01; C04B35/16; C04B35/18; C04B35/195; C04B35/6342; H; H10; H10W; H10W70/00; H10W70/60; H10W70/67; H10W70/69; H10W70/692; H10W99/00; H05; H05K; H05K1/00; H05K1/02; H05K1/03; H05K1/0306; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24917

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 62 words
A method for forming a low dielectric constant substrate characterized by the steps of admixing crystalline cordierite particles with a binder and solvent therefor, casting said mixture into a sheet, drying said cast sheet into a self-supporting green sheet substrate and heating said green sheet substrate to burn out said binder and to sinter said particles together, thereby forming said dielectric substrate.
Claim 2
Independent Claim 62 words
A method for forming a low dielectric constant substrate characterized by the steps of admixing crystalline cordierite particles with a binder and solvent therefor, casting said mixture into a sheet, drying said cast sheet into a self-supporting green sheet substrate and heating said green sheet substrate to burn out said binder and to sinter said particles together, thereby forming said dielectric substrate.
Claim 3
Dependent Claim 43 words
The method of claim 1, characterized in that there is further admixed with the crystalline cordierite particles, binder and solvent one or more crystalline or amorphous materials selected from the group consisting of MgO, CaO, Al 2 0 3 and Si0 2 .
Claim 4
Dependent Claim 20 words
The method of claim 1, characterized by including the step of depositing a metallization pattern on said green sheet substrate.
Claim 5
Dependent Claim 21 words
The method of claim 3, characterized by including the step of laminating a plurality of said metallized green sheet substrates together.
Claim 6
Dependent Claim 22 words
The method of claim 4, characterized by including forming an interconnection pattern in at least one of said metallized green sheet substrates.
Claim 7
Dependent Claim 24 words
The method of claim 4 or 5, characterized by including providing means for extending said patterns to at least one surface of said laminate.

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