Michael Drumheller Email & Phone Number

California, United States

Woodland Hills, Ca

Build and modify medical implants to customers specific needs.Test units throughout build process for power draw, RF performance, measurement integrity, data quality, and accuracy.Temperature compensation and amplifier balancing.

Burbank, California, United States

Fabricate prototype products.Conduct electrical, photometric, thermal, safety, RF tests, and generate reports.Research and development of new designs and features.Fabricated a light apparatus that would rotate up to 55lbs 180° in 1° increments and capture photometric data to benchmark light engines.Designed and built multiple test fixtures for in process check points to be used in production as well as PCB assembly house.Design and fabricate parts as needed using CNC laser cutter and FDM 3D printer.I troubleshot a hung processor startup problem. Using an oscilloscope and microprocessor data sheet traced the cause and recommended a patch board to solve the problem on existing boards and a new circuit design for implementation on future boards.Support production by fabricating assembly fixtures, test stations, and work instructions.

Chatsworth, California, United States

Perform precision calibration and repairs of a wide variety of environmental chambers, ovens, furnace, thermometers, hygrometers, thermocouples, RTD’s, etc.Qualify and chart ranges, tolerances, and characteristics of new equipment.

Camarillo, California, United States

Assembling high performance/reliability power modules, units, sub assemblies, and filters using schematics, BOM, and other supporting documentation.Troubleshooting and repairing failed field units as well as creating repair procedures and updating documentation to reflect any changes to schematics or BOM.Producing products using schematics, bill of materials, and assembly drawings.Hand soldering through hole and surface mount technologies.Winding inductors, transformers, and filters.EMI protection using shielding and filters.Routing, dressing, and connecting wires as to mitigate any EMI and cross talk between digital control and analog power connections.Using DMM to verify electrical connections internally and externally to connectors.Using thermal conductive compounds for improving heat transfer between components and heat sinks.Conformal coating and encapsulation of sub assemblies and units for electrical isolation, environmental protection, and water submersion protection.Performing high voltage potential isolation testing.Creating schematics for legacy and custom products.Verifying torques and mechanical dimensions throughout assembly process.Thoroughly cleaning modules and sub assemblies using ultrasonic baths, Limonene, and isopropyl alcohol.Creating test fixtures, jigs, and cables for unit final testing and RF lab qualification testing.