Rapid prototyping of polymer microsystems via excimer laser ablation of polymeric moulds.
This study presents a novel method for rapid prototyping of polymer microsystems. The method is based on excimer laser ablation of a thermally and mechanically stable polymer, such as PEEK (poly-ether-ether-ketone). A negative of the desired microsystem is laser machined in PEEK, which can then be used directly for hot embossing or injection moulding of a series of prototypes. This approach is very rapid and considerably cheaper than more traditional approaches to toolmaking, while still performing well in terms of reproduction of tool dimensions. The reduction in time and cost for a master tool using this method opens up new possibilities for testing small series in the R&D phase of a microsystem. Finally, two particular applications of the technique are presented.
Danish Technological Institute, Centre for Microtechnology and Surface Analysis, and Centre for Plastics Technology, Gregersensvej 1, DK-2630 Taastrup, Denmark.
Martin F
MF
Jensen
John E
JE
McCormack
Bjarne
B
Helbo
Leif Højslet
LH
Christensen
Thomas R
TR
Christensen
Oliver
O
Geschke
D001577:Benzophenones; D004867:Equipment Design / Q000295:instrumentation / Q000379:methods; D007659:Ketones / Q000737:chemistry / Q000528:radiation effects; D007834:Lasers; D008832:Microchemistry / Q000295:instrumentation* / Q000379:methods; D011092:Polyethylene Glycols / Q000737:chemistry / Q000528:radiation effects; D011108:Polymers / Q000737:chemistry / Q000528:radiation effects*
D001577:Benzophenones; D007659:Ketones; D011108:Polymers; C063834:polyetheretherketone; D011092:Polyethylene Glycols