International Business Machines Corporation

James R Lyerla, Jr

Thomas H Baum

Krishna Gandhi Sachdev

Phillip Joe Brock

Thomas J Walsh

Carl Eric Larson

Arthur Bross

James Economy

Robert L Jackson

Robert O Lussow

Robert D Johnson

Christopher R Moylan

Donald E Myers

Joseph D Peruffo

James J Hedrick

A single step electrical/mechanical connection process utilizes an adhesive layer (3 or 26) that is patterned on a substrate (1 or 21) to mechanically connect adjacent substrates in a multilayered structure (28) or to connect a pin (2) assembly to a device (5). In a preferred embodiment, the adhesive layer (3 or 26) and substrate (1 or 21) are made from materials which will undergo transesterification under heat and pressure to create a very strong bond therebetween. The adhesive layer (3 or 26) is positioned around and does not cover the solder (4) in the pin connector assembly or the alignment holes (24) in the molding/sheet (21), thereby allowing bonding metallurgy to make positive electrical connections between pins (2) and pads (6) and adjacent spheres (22) in a multilayered structure (28).

Single step electrical/mechanical connection process for connecting I/O

A process for generating a capacitive servo pattern on a magnetic storage disk, comprising the steps of: (1) coating the disk with a solution of noble metal compound to form a film of the compound on the disk, (2) exposing said film to radiation through a mask to generate an image on the film, and (3) plating the disk on the areas exposed to radiation.

Generation of capacitive servo patterns on magnetic storage disks

Growing community of inventors

San Jose, CA, United States of America

James R Lyerla, Jr