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Hotoprint Multilayer

 Mulitlayerpresse  

Multilayer bonding

This step follows when the inner layers have been patterned with the layout and passed the AOI test. The inner layers are then bonded with pre-pregs (i.e. glas fibre mats, which have been pre-impregnated with resin) and copper foil to multilayers. The multilayer construction is different for every type.


                     Example: Construction of a 4-Layer ML
         Hotoprint Multilayer


For the bonding, the inner layers are fitted together with compensation pads, pre-pregs and copper foil to the press tool. Under high pressure and temperature, this package is laminated together in a Vacuumchamber Laminationpress by HML
The lamination parameters are constantly being checked and documented during the process.

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