The Treatment Processing Example for the Filler-contained Resin

Filler-contained Resin can be processed at high speed and low cost

Process Objective

  • 1) Surface is exposed by removing near the surface of the substrate on which electric parts are embedded.
  • 2) Grinding surface of the resin on the substrate and only circuits are left on it.

Problems of conventional processing method

Dry Etching (Plasma)•Etching of the filler-contained resin is difficult.
•It takes longer time to process over ten microns.
Laser•It takes longer time to process patterning to large area.
•Desmear is required.
Machining•Knife is damaged immediately due to the filler.
•It even over-processes parts and conductors which are necessary.

Process image

The Cuprum Wiring's Exposure According to Wet-blast


  • Entire surface half-etching for the filler-contained resin
  • Process selection of the resin to reduce Cuprum etching


Processing of materials under court cases


  • Suppressing damages to conductors by using resin particles as well as micro-particles is applicable.
Processing Condition
Using particleAlumina A#2000
Air pressure0.25MPa
Processing Speed20mm/s
Projecting Angle90 degrees
number of times
4-10 passes












At this time, the amount of
Cuprum being shaved is

Processing rate control by abrasive type and air pressure is applicable.

Cases of Formation for Embedded Capacitor


  • Patterning that assumed Cuprum as a mask
  • High accuracy by anisotropic processing
    *The cuprum in the filler-contained resin is not processed, and it can be used as a mask as well.

Examples of associated cell
(WFB-2-2C Lambda)

Processing cell which can process the whole surface of the work piece with its size up to 600x250mm.


  • It can process uniformly to the work piece area up to 600x250mm by moving wide nozzle with 250mm in width.
  • Various types of the work piece can be processed by changing jigs.
  • Using a teaching pendant, various programs such as gun's operating position, gun speed and blast projection's switch on-off are applicable.
Inner diameters1200(W)×730(D)×875(H)mm
Work sizemax 600×250mm
GunWide Gun 250mm x1
Gun DrivingX-axis Driving
Gun Driving Speed1-300mm/s
Power supplyAC200V, 50/60Hz, 3 phases
Power consumption4.2kW (Total rated apparent power of all the cell)
Air supply pressure0.5MPa or more, 0.7MPa and below
Air consumption4.1m3/min(NTP at 0.2 MPa of preset blast air pressure)
OptionSludge Recovery unit,
Gun's tilting function(Automatic switchover for the angles of 0, 45 and -45 degree.)

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