Essemtec stencil printers print more accurately
Essemtec
SP004/150 stencil printer
Essemtec's stencil printers SP004 and SP150 print more accurately and are simpler to set up than their predecessors, the company said.
The tabletop printer SP004 is a further development of the SP003 and the semiautomatic printer SP150 features a new option: the automatic electronic squeegee pressure regulation.
Both printers will be on display at the Productronica 2009 exhibition in Munich in November.
SP150 is a semiautomatic printer with vision, automatic position control and an integrated stencil cleaning system.
The electronic squeegee pressure regulation option allows the required pressure to be programmed as a software parameter instead of a mechanical preset.
This option makes printer setup simpler and increases the printing quality.
The tabletop printer SP004 is the next-generation model of the SP003.
The system has been completely overhauled and features simplified printer setup - everywhere now measures scales installed that enable current settings to be memorised.
The vision cameras are equipped with laser pointers and fast clamping systems.
Within a few minutes, the printer can be changed over from one product to another.
The SP004 allows printing with 20um accuracy and below, making it useful for fine and ultra-fine pitch printing.
The system responsible for the separation of substrate and stencil after printing has been completely updated.
Synchronous screws are responsible for the controlled, exact parallel vertical motion.
The speed of this motion can be set as well, ensuring that printed structures are precise even at ultra-fine pitch.
The SP004 printer is equipped with the direct vision since the system requires no calibration and the vision cameras look straight through the stencil to the substrate.
This is shifted beyond the stencil until the pads are centered in the stencil's openings.
With no further motion, the printing process is started immediately.
For larger series, operators can use the opening and closing servo system, allowing the cover to be lifted easily with two fingers.
The SP004 will find a wide application range in electronics production.
It can print onto substrates up to 410 x 395mm in size and 0.5 to 5mm in thickness.
Stencil frames up to 23 x 23in can be mounted.
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