Russell G Berger, Jr

Title: The Innovative Contributions of Russell G. Berger, Jr.

Introduction

Russell G. Berger, Jr. is a notable inventor based in Hinesburg, Vermont. He has made significant contributions to the field of semiconductor technology. His innovative work has led to the development of a unique rework process that addresses challenges in semiconductor manufacturing.

Latest Patents

Russell G. Berger, Jr. holds 1 patent for a semiconductor wafer rework process. This process involves sideways etching an underlying layer of metal to effectively remove a difficult-to-etch upper layer of metal. The method ensures that the upper layer remains largely intact while preventing damage to the permanent layers of the wafer. Specifically, when the underlying layer is titanium-tungsten (TiW) and the permanent layer is aluminum, the TiW layer can be etched using a hydrogen peroxide and ammonium hydroxide solution. This solution does not harm the aluminum lines permanently present on the wafer. As a result, challenging intermetallic layers, such as tin-copper or chrome-copper, can be removed without risking damage to the permanent aluminum metallization.

Career Highlights

Russell G. Berger, Jr. is associated with the International Business Machines Corporation (IBM), where he has contributed to advancements in semiconductor technology. His work has been instrumental in improving manufacturing processes and enhancing the reliability of semiconductor devices.

Collaborations

One of his notable collaborators is Albert J. Gregoritsch, Jr. Together, they have worked on projects that push the boundaries of semiconductor technology and innovation.

Conclusion

Russell G. Berger, Jr. exemplifies the spirit of innovation in the semiconductor industry. His contributions, particularly in the area of wafer rework processes, have paved the way for advancements that benefit the field significantly.