This inventor holds 5 USPTO granted patents and 1 published patent application. Top assignee: Eastman-Kodak Company. Active years: 1990-1993.
Location History:
- Brockport, NY (US) (1990 - 1991)
- Rochester, NY (US) (1991 - 1993)
Company Filing History:
Years Active: 1990-1993
Title: David N Bull: Innovator in Solid State Device Technology
Introduction
David N Bull is a prominent inventor based in Rochester, NY (US). He has made significant contributions to the field of solid state devices, holding a total of 5 patents. His work focuses on innovative bonding techniques and methods for solid state assemblies.
Latest Patents
One of his latest patents is titled "Bonding of solid state device to terminal board." This invention relates to a solid state assembly that features a solid state device bonded to a terminal board made of insulating material. The terminal board has multiple metal terminal pads arranged in a specific pattern. Each terminal pad is equipped with a metal bump, which is covered by an amalgam layer. The solid state device is mounted on the terminal board, ensuring that its terminal pads are seated on the amalgam of each bump. The assembly process involves applying amalgam to the bumps, mounting the solid state device, and then hardening the amalgam through low-temperature heating. This innovative bonding method allows the assembly to withstand higher temperatures without compromising the bond.
Another notable patent is the "Method and apparatus for forming amalgam preform." This invention describes a method for creating a solid preform body of amalgam from a thin layer. The amalgam, which consists of a mixture of liquid metal and powdered metal, is spread onto a base plate. A controlled temperature is applied to form either a frozen solid layer or maintain the amalgam in liquid form. This method allows for the formation of a molten zone, facilitating the separation of the preform body from the remaining amalgam layer.
Career Highlights
David N Bull is associated with the Eastman Kodak Company, where he has contributed to advancements in solid state technology. His innovative work has positioned him as a key figure in the development of new bonding techniques for electronic devices.
Collaborations
Throughout his career, David has collaborated with notable colleagues, including Edward J Ozimek and Terry Tarn. These collaborations have further enhanced his contributions to the field of solid state devices.
Conclusion
David N Bull's innovative work in solid state device technology has led to significant advancements in the industry. His patents reflect a commitment to improving bonding methods and enhancing the performance of electronic devices. His contributions continue to influence the field and inspire future innovations.