Certified Professionals

One of Silicon Valley’s most prolific ESD device and design professionals, Rosario has completed more than 3,700 ESD design applications and 43 device libraries while at Advanced Micro Devices, LSI Logic, Maxim, VLSI Technology, and Impulse Semiconductor. Founded by Rosario in 1994, Impulse Semiconductor Inc. is an ESD metrology, design, and troubleshooting engineering service organization.

With more than 20 years of experience in the field, he is an expert in product applications involving on-chip protection for human body model (HBM), machine model (MM), and charged device model (CDM) ESD, to include European IEC specifications.

A graduate of Marquette University Electrical Engineering, Rosario has 11 patents covering ESD technology, from transmission line pulser instrumentation to semiconductor devices and circuits.  

Rosario is also a bass fishing enthusiast, enjoys playing ice hockey, and watching Green Bay Packer football.

Credential ID: https://esdcertification.esda.org/c/5a9673076b354ca386a41d61e0e09e82

Credential ID: 5a5ae7353d4741c88ade21385f0c8ba0

Credential ID: 752963253ed444dcb47ac86ac7b2c275

Credential ID: https://esdcertification.esda.org/c/0a5048b3d2224978bde61e0ba0d869f6

Credential ID: https://esdcertification.esda.org/c/686fdaee47014da88948df484c59b685

Credential ID: 42ebca899b6146a4b49ad266b3eb6009

Credential ID: 79ffb552c3484545b4ac957302e007b5

Ryan Alstad is a mechanical engineering graduate from North Dakota State University with a strong foundation in electronic manufacturing and tooling design. He has hands-on experience developing and refining production processes to improve efficiency and quality. Since 2024, Ryan has served as a Sales/Process Engineer at E-tronix, a Stromberg Company based in Minneapolis, where he specializes in helping customers automate soldering processes. Outside of work, he enjoys video games, rock climbing, and spending time with friends.

Credential ID: https://esdcertification.esda.org/c/c4055f5dbeee41178d99465270b7f817