Company Filing History:
Years Active: 1993
Title: Innovations by Patrick M Miller in Semiconductor Technology
Introduction
Patrick M Miller is an accomplished inventor based in Poughkeepsie, NY (US). He has made significant contributions to the field of semiconductor technology, particularly in the area of etching processes. His innovative work aims to enhance the reliability and performance of semiconductor chips.
Latest Patents
Patrick M Miller holds a patent for "Etching processes for avoiding edge stress in semiconductor chip solder." This patent discloses methods for producing a graded or stepped edge profile in a contact pad formed between a chip passivating layer and a solder bump. The stepped edge profile is designed to reduce edge stress that can lead to cracking in the underlying passivating layer. The contact pad consists of a bottom layer of chromium, a top layer of copper, and an intermediate layer of phased chromium-copper. An intermetallic layer of CuSn forms when the solder is reflowed, according to various disclosed process variations. The solder serves as an etching mask in combination with several etching techniques, including electroetching, wet etching, anisotropic dry etching, and ion beam etching.
Career Highlights
Patrick M Miller is associated with the International Business Machines Corporation (IBM), where he has been instrumental in advancing semiconductor technologies. His work has not only contributed to the company's innovation portfolio but has also had a lasting impact on the semiconductor industry.
Collaborations
Throughout his career, Patrick has collaborated with notable colleagues, including Birendra N Agarwala and Madhav Datta. These collaborations have fostered a rich environment for innovation and have led to significant advancements in their respective fields.
Conclusion
Patrick M Miller's contributions to semiconductor technology through his innovative etching processes demonstrate his commitment to enhancing the reliability of semiconductor chips. His work continues to influence the industry and pave the way for future advancements.
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