Company Filing History:
Years Active: 1995-1999
Title: Innovations of Patrick O'Brien
Introduction
Patrick O'Brien is a notable inventor based in Palo Alto, CA. He has made significant contributions to the field of microelectronics, particularly in the development of interconnect bumps for flip-chip integrated circuits. With a total of 4 patents to his name, O'Brien's work has had a substantial impact on the industry.
Latest Patents
O'Brien's latest patents include innovative processes for manufacturing interconnect bumps. One of his patents describes an interconnect bump formed on a substrate structure of a flip-chip microelectronic integrated circuit. This process involves sputtering a metal base layer on the substrate and forming a copper standoff on the base layer. A solder cap is then created on the standoff, which has a peripheral portion extending laterally external to the standoff. This design allows the peripheral portion of the cap to serve as a self-aligned mask during a photolithographic step, resulting in the removal of the metal base layer except under the standoff and the cap. The cap has a lower melting point than the standoff, and heat is applied to melt the cap over the standoff without melting the standoff itself. The melted solder forms a generally hourglass shape over the standoff due to surface tension.
Career Highlights
Patrick O'Brien is currently employed at LSI Logic Corporation, where he continues to innovate in the field of microelectronics. His work has been instrumental in advancing technologies that enhance the performance and reliability of integrated circuits.
Collaborations
O'Brien has collaborated with several talented individuals in his field, including Brian J. Lynch and Adrian S. Murphy. These collaborations have contributed to the successful development of his patented technologies.
Conclusion
Patrick O'Brien's contributions to microelectronics through his innovative patents and collaborations highlight his role as a leading inventor in the industry. His work continues to influence the development of advanced technologies in integrated circuits.