Micro Systems Engineering, Inc. (MSEI)

With more than 35 years of experience, MSEI is a leading specialist in medical microelectronics including development & design, system integration, and manufacturing.

MSEI's expertise in development and manufacturing is targeted towards medical technology, in particular for active implants in the area of CRM (cardiac rhythm management) and neurostimulation. Its extensive knowledge in electronics manufacturing, however, is available not only for applications in medical technology but also for other high-end markets.

Development & design services

These services encompass the development of complete electronic modules, from the layout of the printed circuit board, through the definition of the components and design verification, to the construction of production equipment and test rigs.

System integration

MSEI has a proven track record with ultra-miniaturized, cost optimized, and smart medical electronics solutions. The company offers systematic approaches to size reduction and functional integration including value chain control and advanced manufacturing technologies along with a comprehensive focus on reliability.


MSEI's manufacturing capacity includes:

  • fully automatic assembly using the smallest SMDs with high precision on a variety of base materials in Class 10,000 cleanrooms
  • automated test processes at an ambient temperature of 37 °C
  • integration of all processes into a manufacturing execution system (MES)
  • full real-time component and module traceability systems

MSEI is EN ISO 13485:2012 certified. The product development and manufacturing processes are part of a comprehensive quality assurance program that includes every stage throughout the value-added chain and that systematically optimizes every operating stage for reliability.

MSEI is headquartered in Lake Oswego, Oregon, roughly 10 miles south of Portland, along with an development facility in Houston, Texas. The company employs more than 350 people.

Micro Systems Engineering, Inc.
6024 SW Jean Road
Lake Oswego, OR 97035

Tel. +1 (503) 744-8500
Fax +1 (503) 744-8001

Manufacturing of electronic modules and ASIC design