Company Filing History:
1 out of 30 
1 out of 9 Years Active: 2016-2019
Title: John W Hadd: Innovator in Semiconductor Technology
Introduction
John W Hadd is a notable inventor based in Saginaw, MI (US), recognized for his contributions to semiconductor technology. He holds 2 patents that showcase his innovative approaches to solving complex problems in the field.
Latest Patents
One of his latest patents is a method of determining a concentration of a material not dissolved by silicon etchants contaminating a product. This method involves obtaining a sample of the silicon product contaminated with plastic or other materials, placing it into an ultrasonic bath to create a slurry, filtering the slurry to produce a cake, and analyzing the cake to determine the concentration of the contaminating material. Another significant patent involves applying edge-on photoluminescence to measure bulk impurities of semiconductor materials. This patent provides systems and methods for identifying and quantifying impurities in semiconductor samples using a defocused collimated laser beam and photoluminescence collection techniques.
Career Highlights
Throughout his career, John W Hadd has worked with prominent companies in the semiconductor industry, including Hemlock Semiconductor Corporation and Hemlock Semiconductor Operations LLC. His work has significantly impacted the development of semiconductor technologies.
Collaborations
John has collaborated with notable colleagues such as Doug Kreszowski and Robert Scott Leser, contributing to advancements in their field.
Conclusion
John W Hadd's innovative patents and career in semiconductor technology highlight his significant contributions to the industry. His work continues to influence the development of new methods for analyzing and improving semiconductor materials.