Solder jet paste printing for complex SMT and PCBA electronics. Mycronic and CEM Gemini Tec Ltd UK

Gemini Tec Ltd - UK based contract electronics manufacturer for complex products focused on NPI to medium volume production.

Solder jet printing technology - solder paste application:

In 2008, Gemini Tec were the first UK CEM to introduce 'Solder Jet Paste Printing' technology, providing its customers with unrivalled product quality in surface mount production.

Today, Gemini Tec is the only UK CEM operating with three world-class solder jet printing systems across its fleet of SMT placement lines, covering prototype, NPI and full production.

Adding to its jet printing capability in 2019 the latest MY700 dual head jet printer from the Sweden based manufacture Mycronic.

The dual head process now allows the printer to combine 'paste ejectors' to dispense different 'dot' sizes of solder paste. Our MY700 printer can use type 5 or type 6 solder paste as we reflow with nitrogen N2.

One ejector can operate at a slower speed to paste the 0.23 mm pads, whilst the second ejector can run faster to paste larger areas of paste which results in a very fast print cycles.


The jet printers from Mycronic are able to align each PCB on the fly and compensate for pattern differences on the PCB and for any box or twist, that is within the standard tolerance of less than 1% of the longest edge.

The solder jet printing process is repeatable from board to board and provides a level of consistency that is beyond a traditional stencil printer, for example, when small apertures in a stencil get blocked or are not designed correctly which leads to excessive rework.

When the pasted board has been validated by its on board inspection/AOI, it will then be released down the production line into the SMT placement machines and reflow process.

see more at www.geminitec.co.uk