Test system design and build · Service 04

Production test systems and test fixtures for boards and assemblies

Fermium designs and builds production test systems for boards and complete assemblies. Scope includes bed-of-nails and other test fixtures, electrical adapters and wiring, test software, measurements and per-unit test records. We define coverage against product requirements.

Or call us: +41 78 914 41 45

What we do

Test systems for repeatable production checks

For new products, we can develop the test system alongside the product on request.

01

Test systems for boards

Functional test systems for assembled boards: power-up, firmware programming, calibration and checks of each interface against defined limits.

02

Test systems for complete assemblies

End-of-line tests for finished devices: interfaces, sensors, actuators and mechanics checked under defined test conditions before shipment.

03

Test fixtures and adapters

Bed-of-nails fixtures and other test fixtures hold and contact the product; electrical adapters and wiring connect it to test equipment. We machine or 3D-print fixtures to fit the board or assembly.

04

Test software and measurement

Test sequences, instrument control and measurement routines with limits for each test step, from firmware programming to final calibration.

05

Test records and traceability

Each unit receives a test record with its serial number, measured values, limits and pass or fail result. We store the records for traceability and later analysis.

06

Planned in the PCB design

On request, we place test points and programming interfaces during PCB layout and define test coverage against agreed requirements. This lets us develop the test system alongside a new product.

Capabilities

What our test systems cover

Test scope

  • Board tests
  • Assembly tests
  • End-of-line tests
  • Firmware programming
  • Calibration

Test fixtures and adapters

  • Bed-of-nails fixtures
  • Connector adapters
  • Cabling
  • CNC-machined parts
  • 3D-printed parts

Test software

  • Test sequences
  • Instrument control
  • Measurements and limits
  • Test reports
  • Results analysis

Interfaces under test

  • CAN / CAN-FD / LIN
  • USB Device / Host
  • EtherCAT
  • PROFINET
  • Modbus RTU / TCP
  • Bluetooth LE
  • JTAG / SWD

Process

From test requirements to production release

Test scope, cycle time and traceability requirements shape the fixture and software design.

  1. 01

    Test requirements

    We agree test coverage, cycle time, quantities, traceability needs and production environment before system development.

  2. 02

    Test concept

    We define test coverage against requirements and select the fixture and instrument concept. For new products, test points and programming interfaces can be planned in the PCB layout on request.

  3. 03

    Fixture and software

    We build the test fixture, electrical adapters and wiring, implement test sequences, measurement routines and limits, and run them on prototype units.

  4. 04

    Validation

    We verify repeatability and test coverage on prototype units, adjust limits using measured data and document test results.

  5. 05

    Production release

    We prepare the test system for use by the manufacturing partner and hand over operator instructions and maintenance documentation.

Next step

A personal contact for your project

Describe the device, its current stage and the main requirements. You can attach a specification or a schematic as a PDF. On request, you receive a non-disclosure agreement (NDA) first.

Common questions

Questions about production test systems

Do you build the test systems for our boards and assemblies?

Yes. We design and build production test systems for circuit boards and complete assemblies. Scope can include mechanical fixtures, electrical adapters and wiring, test sequences, measurements and per-unit test records. For new products, we can develop the test system alongside the product on request.

When should the test system be planned?

For new products, we can develop the test system alongside the product on request. We define test coverage and plan test points and programming interfaces during PCB design. This allows time to develop and verify the fixture and software before manufacturing starts.

Can you build a test system for a product you did not develop?

Yes. We use your existing design data, product requirements and production process to design and build a suitable fixture and test software for the product.

What does the test system record for each unit?

A test record for each unit includes its serial number, each test step, measured values, limits and pass or fail result. We store records for traceability and later analysis.

Contact

Discuss your embedded project

Describe the device, its current stage and the main requirements.

What do you need?

Patrick Walther

Founder

Fermium GmbH
Hardeggweg 3
3326 Krauchthal, Switzerland
Fermium GmbH, Hardeggweg 3, 3326 Krauchthal, Switzerland