Raymond “Ray” Zinn is an inventor, entrepreneur and the longest serving CEO of a publicly traded company in Silicon Valley. He is best known for creating and selling the first Wafer Stepper and for co-founding semiconductor company, Micrel (acquired by Microchip in 2015). Zinn also holds over 20 patents for semiconductor design. A proud great-grandfather, he is actively-retired and mentoring entrepreneurs. His new book, Tough Things First (McGraw Hill), is available at ToughThingsFirst.com, Amazon and other booksellers.