Sindy Yeung

Title: The Innovative Contributions of Sindy Yeung

Introduction

Sindy Yeung is a prominent inventor based in Fremont, CA, known for her significant contributions to the field of hard disk drive technology. With a total of 5 patents, her work focuses on enhancing the performance and reliability of HDDs through innovative designs.

Latest Patents

One of her latest patents is an air-bearing design for hydrocarbon and lube pick-up improvements in hard disk drives. This slider design features an air-bearing surface (ABS) topography with arrays of micro-dots formed on bases of a multiplicity of cavities at different depths. The design effectively eliminates the accumulation of hydrocarbons, such as spindle oil and disk lubricant, in regions of air stagnation within the cavities. This is achieved where backflows and foreflows of air meet and cancel during HDD operation. The micro-dots are small raised regions of various shapes, with sizes and spacings ranging between 2 and 100 microns, and heights of 0.15 microns above the cavity bases.

Another notable patent is the air-bearing slider design for sub-nanometer clearance in hard disk drives. This slider is formed by a three-step ion milling process, providing aerodynamic stability at sub-nanometer flying heights. The ABS design significantly reduces lubricant accumulation and utilizes a shallow dam at the trailing edge to remove any lubricant that does accumulate. Additionally, a junction between a down-track channel and a cross-track channel directs airflow towards a center pad, enhancing pressure at the pad even under high altitude conditions. The slider ABS is divided into two portions by a transverse deep air channel, bridged by the cross-track channel, allowing for compensation of variations in skew angle and significantly reducing pressure variations across the disk tracks.

Career Highlights

Sindy has worked with notable companies such as Sae Magnetics (H.K.) Limited and Headway Technologies, Incorporated. Her experience in these organizations has contributed to her expertise in HDD technology and innovation.

Collaborations

Throughout her career, Sindy has collaborated with talented individuals, including Ellis T Cha and Zhu Feng. These collaborations have further enriched her work and contributed to her success as an inventor.

Conclusion

Sindy Yeung's innovative designs and patents have made a significant impact on the hard disk drive industry. Her contributions continue to enhance the performance and reliability of HDD technology,