Development and manufacturing of electronic assemblies and complete devices from schematic design to series production
CM elektronik GmbH
Riegel am KaiserstuhlNew on Amplifa
About CM elektronik
CM elektronik GmbH is a fully integrated E²MS provider (Electronics Engineering and Manufacturing Services) based in Riegel am Kaiserstuhl. The company develops and manufactures complex electrical modules and complete devices according to customer specifications, covering the entire value chain: from schematic design and PCB layout through component procurement to PCB assembly, device integration and functional testing. PCB assembly is carried out on two fully automated SMD lines as well as at manual workstations; through-hole components are processed on a selective soldering system. Assemblies are 100% inspected by AOI, cleaned and, if required, coated completely or partially. Production is in the high-mix low-volume range with lot sizes of 20 to 1,000 units; prototypes are produced within 3 to 4 weeks using series technologies. Customers come from the semiconductor industry, medical technology, mechanical and plant engineering, special-purpose vehicles and metrology. The company was founded in 1994 in Emmendingen and has been certified under ISO 9001 (1999) and ISO 13485 (2022).
- Site
- Riegel am Kaiserstuhl
- Processes
- SMD assembly (PCB assembly, SMD/THT, mixed technology both sides), Selective soldering (Intertec selective soldering system, automated mini-waves), AOI inspection (automatic optical 100% inspection), PCB cleaning (machine-based, manual, ultrasonic bath), Protective coating (complete or partial), THT assembly (machine-based or manual), Device assembly (incl. housing, switches, wiring harness, display, potting), Prototype, sample and pre-series manufacturing (SMD/THT, 3–4 weeks)
- Materials
- SMD assembly, THT assembly, Selective soldering, AOI inspection, PCB cleaning, Protective coating, Device assembly
- Certificates
- ISO 9001, ISO 13485
- Founded
- 1994
- Industries
- Semiconductor industry, Medical technology, Mechanical and plant engineering, Special-purpose vehicles, Metrology
- 01
Development (schematics, test fixtures)
- 02
PCB layout
- 03
Component procurement incl. supplier coordination
- 04
PCB assembly (SMD/THT, selective soldering)
- 05
AOI inspection
- 06
Cleaning of assemblies
- 07
Protective coating
- 08
Device assembly
- 09
Functional test, calibration, commissioning
Processes and Technologies
SMD assembly
Assembly on two fully automated SMD lines with all common SMD package types, incl. BGA, µBGA and fine pitch down to package size 0201.
THT assembly
Machine-based or manual assembly of through-hole components in mixed technology, both sides.
Selective soldering
Automated mini-waves of an Intertec selective soldering system for the smallest solder joints on both-side SMD-assembled circuits.
AOI inspection
Automatic optical 100% inspection of assembly, alignment and solder joints after assembly.
PCB cleaning
Machine cleaning in the Kolb cleaning system or manual cleaning in an ultrasonic bath.
Protective coating
Complete or partial coating for protection against moisture and dirt, customized to customer requirements.
Device assembly
Complete assembly incl. housing, switches, wiring harness, display and potting.
Locations
Riegel am Kaiserstuhl
DEHeadquarters with manufacturing and office
- Lot size
- 20–1,000 units
- Materials
- SMD/THT assemblies, complete devices
- 2 fully automated SMD assembly lines
- Intertec selective soldering system
- KohYoung AOI system
- Kolb cleaning system
- Coating machine
- Ultrasonic bath
- Manual assembly workstations
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| SMD assembly (PCB assembly, SMD/THT, mixed technology both sides)Assembly | – | – | – | 20 units – 1,000 units | electronic components (SMD, THT, BGA, µBGA, fine pitch) |
| Selective soldering (Intertec selective soldering system, automated mini-waves)Joining | – | – | – | – | through-hole components (THT, e.g. pin headers) |
| AOI inspection (automatic optical 100% inspection)Testing | – | – | – | – | – |
| PCB cleaning (machine-based, manual, ultrasonic bath)Surface | – | – | – | – | – |
| Protective coating (complete or partial)Surface | – | – | – | – | protective coating (customer-specific) |
| THT assembly (machine-based or manual)Assembly | – | – | – | – | through-hole components (THT) |
| Device assembly (incl. housing, switches, wiring harness, display, potting)Assembly | – | – | – | 20 units – 1,000 units | housings, switches, wiring harness, display, potting compound |
| Prototype, sample and pre-series manufacturing (SMD/THT, 3–4 weeks)Assembly | – | – | – | – | – |
| Development of electrical schematics incl. test fixtures and programsEngineering | – | – | – | – | – |
| PCB layout (design)Engineering | – | – | – | – | – |
| Procurement (components, electro-mechanics, mechanical parts, sub-suppliers)Engineering | – | – | – | – | – |
| Functional test and commissioning, calibration (also under extreme conditions)Testing | – | – | – | – | – |
| Obsolescence management (proactive/reactive)Engineering | – | – | – | – | – |
7 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| SMD assembly line | – | 2 | – | – | Riegel am Kaiserstuhl |
| Selective soldering system (automated mini-waves) | Intertec | 1 | – | – | Riegel am Kaiserstuhl |
| AOI (Automated Optical Inspection system) | KohYoung | – | – | – | Riegel am Kaiserstuhl |
| Cleaning system for electronic assemblies | Kolb | 1 | – | – | Riegel am Kaiserstuhl |
| Coating machine (complete/partial) | – | – | – | – | Riegel am Kaiserstuhl |
| Ultrasonic bath (manual cleaning) | – | – | – | – | Riegel am Kaiserstuhl |
| SMD machine / manual assembly workstations | – | – | – | – | Riegel am Kaiserstuhl |
Additional services
Quality and Certification
A quality management system monitors process compliance in all areas from procurement and development to sales and drives continuous improvement. The processes are certified under ISO 9001 (since 1999) and ISO 13485 for medical devices (since 2022).
| Evidence | Riegel am Kaiserstuhl |
|---|---|
| ISO 9001 | |
| ISO 13485 |
History
- 1994
Founded by C. Meier in Emmendingen
- 1999
Initial certification of the processes under ISO 9001
- ca. 2000
Relocation to Riegel am Kaiserstuhl
- 2018/2019
Expansion of manufacturing and office space
- 2021
Handover of management from C. Meier to Michael Auerswald
- 2022
Completion of ISO 13485 certification in summer