Company Filing History:
3 out of 3 
1 out of 832,718 Years Active: 2001-2002
Title: Brian L. Hoekstra: Innovator in Non-Metallic Substrate Separation
Introduction
Brian L. Hoekstra is a notable inventor based in Melbourne, FL (US). He has made significant contributions to the field of substrate separation technology. With a total of 4 patents to his name, Hoekstra's work focuses on innovative methods and apparatuses for separating non-metallic substrates.
Latest Patents
Hoekstra's latest patents include a method for separating non-metallic substrates. This method involves forming a microcrack in the substrate and controllingly propagating it. An initial mechanical or pulsed laser scribing device is used to create the microcrack. If a pulsed laser is employed, it forms a crack between the top and bottom surfaces of the substrate. A scribe beam is then applied along a separation line, while a helium coolant stream interacts with the trailing edge of the scribe beam. The temperature differential between the heat-affected zone and the coolant stream aids in propagating the microcrack. Two breaking beams on either side of the separation line follow the coolant stream, creating controlled tensile forces that extend the crack to the bottom surface for complete separation. The scribe and break beams, along with the coolant stream, are moved simultaneously relative to the substrate. A preheat beam is also utilized to preheat the affected area. The beams are arranged using lasers, mirrors, and lenses, with a movable mirror that selectively diverts beams for various functions. Spherical aberration is introduced in the beams to ensure even energy distribution. Additionally, a supplemental mechanical force is applied to facilitate the separation process.
Career Highlights
Throughout his career, Hoekstra has worked with various companies, including Accudyne Display and Semiconductor Systems, Inc. His innovative approaches have significantly impacted the industry, particularly in the realm of substrate separation technologies.
Collaborations
Hoekstra has collaborated with notable individuals such as Leonid B. Glebov and Oleg M. Efimov. These collaborations have further enhanced his work and contributions to the field.
Conclusion
Brian L. Hoekstra is a distinguished inventor whose work in non-metallic substrate separation has led to valuable advancements in technology. His innovative methods and collaborative efforts continue to influence the industry positively.
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