John Andrew Shriver, Iii

Title: Innovations of John Andrew Shriver, III

Introduction

John Andrew Shriver, III is a notable inventor based in Cedar Park, TX (US). He has made significant contributions to the field of electronics, particularly in circuit board technology. With a total of 3 patents to his name, Shriver's work has had a considerable impact on the industry.

Latest Patents

One of Shriver's latest patents is focused on circuit board component retention. This innovative method involves injecting a gas, such as oxygen, onto the area of a circuit board where an electronic component is being mounted. The injected gas facilitates the formation of a coating or surface alloy layer, such as tin-oxide, on the solder joint. This coating enhances the solder bead's surface tension and increases the reflow temperature. In a typical double-sided double-pass assembly operation, circuit boards first pass through a soldering oven to attach components to one side. The board is then inverted and passed through the oven again while components are mounted on the opposite side. During this second pass, a gas injection device targets the component-to-board connection points that were soldered during the first pass. The gas is injected at a point in the soldering reflow oven where the temperature exceeds the solder reflow temperature, effectively forming a surface layer on the solder bead. This process increases the surface tension between the circuit board and the mounted component during the second pass reflow.

Career Highlights

Shriver is currently employed at International Business Machines Corporation (IBM), where he continues to innovate and develop new technologies. His work at IBM has allowed him to explore various aspects of electronic component assembly and circuit board design.

Collaborations

Throughout his career, Shriver has collaborated with several talented individuals, including James Sherill Akin and Thomas Alan Schiesser. These collaborations have contributed to the advancement of his projects and the successful implementation of his inventions.

Conclusion

John Andrew Shriver, III is a distinguished inventor whose work in circuit board technology has led to significant advancements in the field. His innovative methods and collaborations with other professionals highlight his commitment to improving electronic component assembly.