CEM Services - UK Made - Complex Capability 

Rapid delivery prototype service, for surface mount PCB products

Gemini Tec are renowned experts in SMT production, with a solid reputation for on-time delivery. We engineer and manufacture over 800 new prototypes a year, with capability designed to deliver unrivalled quality, speed and flexibility.


Investment in world-class technology, such as ‘Solder Jet Printing' and vapour phase reflow, allows us to provide a superior level of quality and produce complex PCB assemblies using BGA, uBGA, QFN, DFN and PoP devices.

We use fully automated Mycronic solder jet pasting and placement equipment, together with intelligent 'Agilis' feeders to achieve fast set-up and changeover times to produce a high mix of products during any production shift. 

All the component inventory is managed through our material handling system, using barcodes to 'track and trace' at various locations within production. The components are scanned onto feeders and machines to ensure the correct parts are used and removing any human factor and risk.    

Key elements of our dedicated rapid NPI/prototype service:

  • Rapid delivery service, using a 'stencil free' solder jet printing process.
  • Agile, flexible and customer focused.
  • Production quality standards (IPC class 2 or 3) for prototypes.
  • 1 to 10 off, rapid delivery batch builds.
  • Skilled IPC accredited technicians to IPC standards.


Technical advantages for complex SMT products:


To ensure product validation we use a range of comprehensive tools as standard, such as Mirtec five axis camera AOI systems, fibre optic Ersascope cameras and 3D X-Ray. Our PCB prototype service uses Asscon vapour phase reflow, removing the contraints related in reflowing complex PCBA's. 

Skilled IPC technicians are used to complete any second stage assembly, by hand or with automated wave soldering machines.

Products can be cleaned using ultrasonic or aqueous washing methods, we also have conformal coating capability using our spray booth for fast order processing or PVA selective spraying system.

MYDATA solder jet printer

Complex PCBA with jet printing 001


How is our rapid service made possible?

Our rapid service is only made possible with ‘Solder Jet Printing' the fastest and most accurate process available for solder paste application.

Jet printing is the technology required to achieve short lead times with high production yields.

Gemini Tec is the only UK CEM equipped with three solder jet printing systems. Our Mycronic MY500, MY600 and twin head MY700 jet printers provide the optimal volume of solder paste to every pad on the PCBA at a rate in excess of 100,000 CPH.


Jet printing means we no longer need to organise or purchase any stencils, saving valuable time and cost. This technical process removes the many constraints associated with using stencils.

Custom paste typography can quickly created quickly from your ODB++ data. You can view our tooling data requirements by downloading our fact sheet here. pdfG-Tec_Engineering_Data_Packs_Issue_1.pdf81.63 KB

Gemini Tec ESD production area


We provide further advantages by completing the PCB tooling in-house to de-risk from potential errors. The PCB tooling is completed by experienced engineers who complete a full DRC/DFM check and apply our verified process checks prior to commencing the bare board manufacturing process.

Our supply chain team can procure and kit the relevant components on your behalf, saving further time and resources. We are also able to accept any mix of free issue materials that you wish to supply, in accordance with our guidelines. Gemini Tec is fully equipped to correctly manage parts to the relevant MSD requirements, including baking and vacuum sealing.   


For rapid delivery SMT and PCB assemblies, contact us for more assistance. Tel +44 (0) 1252 333 444


Customer feedback on the service we provide:

"Sangoma recognizes the high levels of quality and professionalism delivered during the development of our next generation of our products. The quality delivered and the turnaround times were a key element in our products. Sangoma is proud to have you as one of its trusted partners for electronic manufacturing services."