Company Filing History:
Years Active: 1981-1984
Title: Innovations of Barry F. Stein
Introduction
Barry F. Stein is a notable inventor based in Dresher, Pennsylvania. He has made significant contributions to the field of superconducting devices, holding a total of five patents. His work focuses on improving the fabrication methods of superconducting circuits and tunnel barriers.
Latest Patents
One of Stein's latest patents is for a method of superconducting circuit fabrication. This invention presents an improved method of anodization of thin films for the fabrication of superconducting devices. It involves forming an electrically conducting contact layer over a substrate, with an insulating layer positioned between the object layer and the contact layer. The contact layer connects to a power supply, and a preselected portion of the object layer is anodized to a predetermined thickness. The process allows for the anodized portion to be thicker than the original object layer, ensuring a substantially planar surface after anodization.
Another significant patent by Stein is a method of making improved tunnel barriers for superconducting Josephson devices. This innovative method allows for the creation of a base electrode, a counter electrode, and a tunnel barrier area within the same vacuum chamber. This approach minimizes contamination risks and ensures that the tunnel barrier area is accurately defined to a predetermined size.
Career Highlights
Barry F. Stein has had a distinguished career, primarily working with Sperry Corporation. His expertise in superconducting technology has positioned him as a key figure in the development of advanced