Browse Prior Art Database

Thin PVA Coats on Ceramic Green Sheets

IP.com Disclosure Number: IPCOM000081123D
Original Publication Date: 1974-Apr-01
Included in the Prior Art Database: 2005-Feb-27
Document File: 2 page(s) / 43K

Publishing Venue

IBM

Related People

Mascitelli, RE: AUTHOR [+4]

Abstract

A plastic substrate 10 is coated with a thin layer of polyvinyl alcohol 12 by spraying or dipping, and then drying (Figs. 1 and 2). A ceramic slurry 14 is doctor bladed onto the coated substrate 10 to form a green sheet 15 (Fig. 3). The layer 12 adheres to the plastic substrate 10, however, when the ceramic green sheet 15 is pulled away, the layer 12 peels away from the plastic substrate 10 and adheres to the ceramic green sheet 15 (Fig. 4).

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 100% of the total text.

Page 1 of 2

Thin PVA Coats on Ceramic Green Sheets

A plastic substrate 10 is coated with a thin layer of polyvinyl alcohol 12 by spraying or dipping, and then drying (Figs. 1 and 2). A ceramic slurry 14 is doctor bladed onto the coated substrate 10 to form a green sheet 15 (Fig. 3). The layer 12 adheres to the plastic substrate 10, however, when the ceramic green sheet 15 is pulled away, the layer 12 peels away from the plastic substrate 10 and adheres to the ceramic green sheet 15 (Fig. 4).

The layer 12 prevents wetting of the ceramic green sheet 15 by organic solvents of the metal pastes 16, used to form via holes and open channels in the ceramic green sheet 15 after E-beam personalization and metal deposition, as depicted in Figs 5 and 6, respectively.

1

Page 2 of 2

2

[This page contains 3 pictures or other non-text objects]