Browse Prior Art Database

Cell for Plating Diamond Saws

IP.com Disclosure Number: IPCOM000084121D
Original Publication Date: 1975-Sep-01
Included in the Prior Art Database: 2005-Mar-02
Document File: 2 page(s) / 43K

Publishing Venue

IBM

Related People

Mansbridge, DS: AUTHOR

Abstract

A cell is described in which the tip of a saw blade is in contact with diamond powder suspended in electrolyte, separated from a volume of electrolyte by a diaphragm. The saw blade is rotated during plating.

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

Cell for Plating Diamond Saws

A cell is described in which the tip of a saw blade is in contact with diamond powder suspended in electrolyte, separated from a volume of electrolyte by a diaphragm. The saw blade is rotated during plating.

As shown in the figure a saw blade is mounted on a conductive shaft to which a negative potential is applied by spring-loaded carbon brushes. The shaft may be rotated by a motor via a coupling insulator. The blade is mounted between disks attached to the shaft which carry resilient cups to mask all but the tip of the blade. A diaphragm is placed across the peripheries of the disks to form an enclosure, which is filled with electrolyte and diamond powder.

The blade assembly is lowered between the anodes of a conventional electrolytic plating bath having one side sealed with a rubber gasket. The bath is filled with electrolyte to immerse the blade assembly which is rotated in the vertical position at 2 - 4 revolutions per minute, allowing the diamond powder to fall on the cutting edge of the blade and be fixed by the cathodic deposit. Plating through the diaphragm allows the use of a minimum quantity of diamond powder to achieve high concentration.

1

Page 2 of 2

2

[This page contains 2 pictures or other non-text objects]