Ronald Francis Tokarz

Title: The Innovations of Ronald Francis Tokarz

Introduction

Ronald Francis Tokarz is a notable inventor based in Maine, NY (US). He has made significant contributions to the field of circuit board technology, holding a total of three patents. His work focuses on enhancing the reliability and testing methods of circuit boards, which are crucial components in modern electronics.

Latest Patents

One of his latest patents is the "Circuit board assembly torsion tester and method." This invention features a mechanical deflection system (MDS) that includes a torsion tester for circuit boards. It imposes controlled repeatable sheer stress to a test board and the components mounted on it by cyclically twisting the board about a center line. A self-centering twisting clamp holds one edge of the board, while a rotating clamp connected to a backlash-free motor and servo mechanism holds the opposite edge with a limited clamping force. A computer regulates the motor to apply either a specified maximum twist angle or maximum torque. It receives signals from an optical meter that measures the angle and from a load cell that measures the torque. The computer is also designed to detect failures by measuring the electrical resistance of critical joints during testing, recording the location and number of cycles for each failure. The MDS includes a test method that continues until a large number of fatigue failures have occurred. The locations and cycles until failure are then compared to data for a similar circuit board produced by a base attachment process. This process is essential for both attachment process development and quality monitoring, ultimately leading to a statistically determined reliability of the circuit board and/or production process.

Career Highlights

Ronald Tokarz is currently employed at International Business Machines Corporation (IBM), where he continues to innovate and develop new technologies. His work has had a significant impact on the reliability and efficiency of circuit board manufacturing processes.

Collaborations

He has collaborated with notable coworkers such as Gerard Truman Dickinson and James Lee McGinniss, Jr. Their combined expertise has contributed to advancements in the field of circuit board technology.

Conclusion

Ronald Francis Tokarz is a distinguished inventor whose work in circuit board technology has led to significant advancements in testing methods and reliability. His contributions continue to influence the electronics industry positively.