CEM Services - UK Made - Complex Capability 

Surface mount PCB production, with high mix & complex capability

MY200 14 SynergyGemini Tec provides a range of production orders and contracts. Our capability is suited to PCBA's using SMT technology with BGA, micro BGA, QFN, DFN, PoP, leadless and complex component parts.  

Using Mycronic manufacturing technology we currently place over 5 million components a month, producing batch sizes from 1 to 1000 units. We also produce yearly contracts with volumes up to 10,000 units.

 synergy smt volume order

Gemini Tec is the only UK based CEM equipped with three solder jet printers, providing customers with speed and flexibility. Solder jet printing increases the quality of production and removes all the hidden costs and technical constraints associated with 'stencil printing'  Speed is gained from not having to set up and engineer stencils, with total flexibility to change paste deposit sizes on the fly, or create new programs for new build parts within seconds.

We operate with five SMT placement machines: Our flagship MY200 'Synergy' line capable of accepting 354 different component types in one set up, making it ideal for PCBA's that contain a high mix of components. Our SMT lines are fully automated, using board loading and transport conveyors to efficiently process PCBAs through the SMT department. Our automated SMT lines are configured with intelligent Agilis feeders for end to end traceability and material handling allowing us to optimise set up times for a variety of batch sizes.

Gemini Tec is the only UK CEM equipped with ASSCON vapour phase reflow, including vacuum reflow and fully in line reflow. Our investment into leading edge equipment allows us to deploy this technology on prototype and high volume production batches. We operate three reflow ovens, Asscon VP2000-210, Asscon VP800 vapour phase and convection reflow with our BTU Pyramax system.   Read our FAQ's page by clicking this link FAQ's on vapor phase technology.

Vapour Phase Reflow at Gemini Tec



Key elements of our SMT PCB assembly service:


MY600 Printer at G-Tec


With our entire SMT process supported with solder jet printing technology, we are able to work with the latest array of component technology and substrates, including flex-rigid, in-board cavity, PoP devices (Package on Package) and devices with small processing windows. (Pictured MY600 solder jet printer)


All SMT assemblies are subjected to our technical NPI process. Our capability also includes vapour phase reflow, using vacuum processing for void free production. This process removes the need to invest time and materials in validating thermal profiles.


In-process inspection is completed by experienced IPC quality engineers. Gemini Tec use the very latest five camera AOI inspection systems from Mirtec, allowing advanced defect detection. Ersascope cameras and real time X-Ray is also used to assist with product validation.




Second stage PCB assembly is carefully completed by IPC qualified technicians, using manual and automated soldering techniques. Products can be supplied cleaned using ultrasonic and aqueous cleaning, supported with ionic contamination testing. We also have conformal coating capability in-house, using a robotic and selective spraying process. 

cem area b



Full product assembly, box build or mechanical assembly services are conducted along with any functional or validation test services. We use powerful resource planning software to organise and plan our manufacturing workflow and material control.


Our superbly equipped facility has full ESD controls, complete with controlled access and 24 hour CCTV monitoring.


If you are looking to work with an experienced and capable CEM, contact us to arrange a meeting and discuss your requirements in more detail. Tel +44 (0) 1252 333 444



Customer feedback on the service we provide:

"Using Gemini Tec has been a breath of fresh air, delivering product on time and often ahead of planned deliveries to aid DSL in delivering urgent orders to its customers. DSL has historically worked with at least 2 sub-contract manufacturers, but given our confidence in your service and ability we have attained over the years, we have taken the unprecedented move to single source with Gemini"