Frequently Asked Questions
What services does EI Microcircuits provide?
We are a full-service electronics contract manufacturing partner specializing in printed circuit board assembly (PCBA) and box-build turnkey integration. Our capabilities include surface mount (SMT), through-hole, and mixed-technology assembly, along with conformal coating, overmolding, testing, and final system integration.
What industries do you support?
We focus on high-reliability sectors including medical devices, aerospace, defense, and industrial automation. These industries require strict process control, traceability, and consistent product performance across the lifecycle.
What production volumes do you specialize in?
We support high-mix, low-to-mid volume manufacturing. This model allows us to maintain flexibility while delivering consistent quality for complex assemblies with varying production requirements.
Do you offer design-for-manufacturability (DFM) support?
Yes. We provide DFM consultation early in the product lifecycle to identify risks, improve yields, and streamline production. Our goal is to align design intent with real-world manufacturing performance.
What testing and inspection capabilities are available?
We utilize a layered quality approach that includes automated optical inspection (AOI), X-ray inspection, flying probe testing, in-circuit testing (ICT), and full functional testing. These systems support defect detection, process validation, and long-term reliability.
Can you provide full turnkey box-build solutions?
We deliver complete box-build and final assembly services, including material procurement, enclosure integration, cable and wire harness assembly, functional testing, packaging, and logistics. This enables supplier consolidation and reduces program complexity.
What quality management systems do you operate under?
We operate under established quality management systems such as ISO 13485 and AS9100D, supporting regulated industries that require documented process control, traceability, and risk management.
Do you support regulatory or compliance-driven programs?
Yes. We support programs that require adherence to standards such as ITAR, IPC workmanship criteria, and medical or aerospace regulatory requirements. Our processes are structured to maintain compliance throughout the product lifecycle.
What differentiates EI Microcircuits from other EMS providers?
We focus on flexibility, process control, and customer alignment. Our model supports high-complexity builds without rigid volume thresholds. We position ourselves as an extension of your manufacturing—delivering solutions, not just assemblies.
When was EI Microcircuits founded?
We were founded in 1984 as an early adopter of surface mount technology (SMT), helping define best practices in pad design, stencil development, and automated placement during the early stages of electronics miniaturization.
Where are your manufacturing facilities located?
We operate multiple manufacturing facilities in Minnesota, supporting scalable production, advanced assembly processes, and value-added services under one operational framework.
How do you support long-term production programs?
We provide lifecycle manufacturing support, from prototyping through full production and ongoing supply. Once qualified, we maintain consistent builds over the product’s life expectancy, ensuring continuity, quality, and supply chain stability.
Do you offer additional value-added services beyond PCBA?
Yes. Our value-added services include conformal coating, potting, overmolding, warehousing, and logistics. These capabilities allow customers to consolidate vendors and reduce operational risk.
What is your approach to customer relationships?
We prioritize direct communication between our teams and yours. This structure shortens feedback loops, improves responsiveness, and ensures alignment between design, manufacturing, and quality objectives.
let's talk
EI Microcircuits operates multiple climate-controlled facilities designed for scalability, technical excellence, and built-in disaster resilience—each fully equipped to support today’s most advanced electronic assemblies. Let us be the solution to your next project—Contact Us, Request a Quote, or Schedule a Tour today!
MANKATO, MN
1651 Pohl Road
Mankato, MN 56001
P: 507.345.5786
ST. PETER, MN
2011 Klein Street
St. Peter, MN 56082
P: 507.934.5722
*Each facility is configured to support your production needs. While maintaining continuity with each other in equipment, training and process control. All facilities share the same data center to allow for seamless manufacturing between locations.
