Dale W Cawelti

Title: The Innovations of Dale W. Cawelti

Introduction

Dale W. Cawelti is a notable inventor based in Carlsbad, California, recognized for his contributions to the field of electrical interconnect integrity. With a total of six patents to his name, Cawelti has made significant advancements in bond quality monitoring technologies.

Latest Patents

One of Cawelti's latest patents is an innovative method for measuring electrical interconnect integrity. This method involves a bonding machine equipped with a touchdown mechanism that includes a pair of contacts. These contacts normally open upon the touchdown of a bonding tool, which is raised and lowered by a bond head carriage. As the tool is lowered towards a bonding surface, the bonding machine's computer performs a test to sense the production of a touchdown signal. If touchdown is detected, the carriage moves to an overtravel position, where a second test is conducted to confirm the touchdown before energy is applied to the bond site. During this energy application, the logic state of the touchdown mechanism is monitored to ensure that the contacts do not close, which helps in checking for inadequate force during bonding. If a contact closure is detected, the bond site location is logged for further examination, such as a nondestructive pull test. The distance the carriage ascends before the contacts close is then used as a measure of bond deformation and overall bond quality.

Career Highlights

Cawelti has had a distinguished career, working with prominent companies such as Hughes Aircraft Company and Palomar Products, Inc. His experience in these organizations has contributed to his expertise in the field of electrical engineering and bonding technologies.

Collaborations

Throughout his career, Cawelti has collaborated with several notable individuals, including John B. Gabaldon and Daniel D. Evans, Jr. These collaborations have further enriched his work and innovations in the industry.

Conclusion

Dale W. Cawelti's contributions to the field of electrical interconnect integrity and bond quality monitoring have made a significant impact on technology. His innovative methods and patents continue to influence advancements in the industry.