Browse Prior Art Database

Automated Line Embedding System

IP.com Disclosure Number: IPCOM000110164D
Original Publication Date: 1992-Sep-01
Included in the Prior Art Database: 2005-Mar-25
Document File: 3 page(s) / 148K

Publishing Venue

IBM

Related People

Jordan, SR: AUTHOR [+2]

Abstract

This article describes a machine that implements a multi-layered ceramic (MLC) line-embedding process without the use of sandwich plates.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 66% of the total text.

Automated Line Embedding System

       This article describes a machine that implements a
multi-layered ceramic (MLC) line-embedding process without the use of
sandwich plates.

      The sheets that go into making up MLC substrates are called
green sheets.  These sheets have circuit patterns put on them by a
variety of screening and chemical processes.  A process was developed
to improve the manufacturing yields of the MLC substrate.  This
process, called line embedding, involves the pressing of the
circuitry material that has been screened on the surface of the green
sheet into the soft green sheet material.  The machine described
herein utilizes automatic equipment for implementing this process.
The primary objective of the machine of this article is to eliminate
the necessity of building sandwiches for the line-embed process, and
thus eliminating the steel plates.

      Fig. 1 is a top view and Fig. 2 is a front elevation view
of the machine.  Fig. 3 is a perspective view of the machine.  The
major components of the disclosed machine are input cleaner 1, heater
2, press 3, cooler 4, and output cleaner 5, as shown in Fig. 1.

      The steel sandwich plates are eliminated by transporting the
green sheet through the system on a conveyor belt 6 made of the same
material as the backer sheets used in the sandwiches.  As the green
sheet enters the press 3, a second belt 7 of the same material and
moving at the same speed rolls over the top of the shee...