Company Filing History:
2 out of 104 
1 out of 1,787 
Years Active: 2005-2014
Title: Yale Zhang: Innovator in Optical Technologies
Introduction
Yale Zhang is a prominent inventor based in Sunnyvale, CA, known for his contributions to optical technologies. With a total of 3 patents, he has made significant advancements in the field, particularly in systems that enhance optical inspection and signal processing.
Latest Patents
One of Yale's latest patents is the "Active Planar Autofocus." This innovative system inspects depth relative to a layer using a sensor with a fixed focal plane. A focus sensor detects the surface of the substrate and outputs focus data. During setup mode, the controller scans a portion of the substrate, receives focus and XY data, and stores correlated XYZ data. In inspection mode, the controller scans another portion, receives focus and XY data, and subtracts the stored Z data from the focus data to produce virtual data. This data is then used to adjust the substrate's position, maintaining the focal plane at a desired Z distance.
Another notable patent is the "Variable Attenuator Optical Add/Drop Devices." This invention involves optical devices that add or drop an optical signal with a specific wavelength. The design includes a reflection channel module with a grin lens and a bandpass filter to transmit the desired optical signal while reflecting other channel signals. The transmitted signal is regulated by an optical regulator, allowing for the addition or dropping of channels based on application needs.
Career Highlights
Yale has worked with several notable companies, including Alliance Fiber Optic Products, Inc. and Kla Tencor Corporation. His experience in these organizations has contributed to his expertise in optical technologies and innovation.
Collaborations
Yale has collaborated with talented individuals in the field, including Scott Allen Young and Daniel L Cavan. These partnerships have fostered a creative environment that has led to significant advancements in their respective projects.
Conclusion
Yale Zhang is a distinguished inventor whose work in optical technologies has led to multiple patents and innovative solutions. His contributions continue to influence the industry and inspire future advancements in optical systems.