Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Making named article
Reexamination Certificate
2006-06-06
2006-06-06
Chea, Thorl (Department: 1752)
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Making named article
C430S322000, C430S323000, C264S297200, C264S458000, C216S056000, C216S067000, C205S070000, C438S455000, C438S458000, C438S459000
Reexamination Certificate
active
07056649
ABSTRACT:
A process for producing microstructured tool insert for injection molding a part, the part being fabricated of a synthetic material, a metal or a ceramic material and including an arrangement of microstructures which are formed on an outer surface of the part and have two different predetermined depths. The process comprises the following steps:(1) microstructuring the front side of the first wafer by means of plasma etching to form an arrangement of first microstructures, which are formed on the front side of the wafer and which have a first predetermined depth,(2) microstructuring the rear side of the first wafer by means of plasma etching to form an arrangement of the second microstructures which form cavities which have a first orifice on the rear side of the first wafer and issue into the first microstructures on the front side of the first wafer or have a second orifice on the front side of the first wafer,(3) bonding the rear side of the first wafer to a carrier substrate to form a master,(4) electrochemically depositing a metal layer on the front side of the first wafer and in the cavities which are present therein and are formed by the second microstructures, and(5) separating the metal layer from the master, wherein the separated metal layer can be used as a tool insert for injection molding a part.
REFERENCES:
patent: 6242163 (2001-06-01), Stampfl et al.
patent: 6764924 (2004-07-01), Gmur
patent: 2002/0098611 (2002-07-01), Change et al.
Olsson et al., “Valve-Less Diffuser Micropumps Fabricated Using Thermoplastic Replication,” Micro Electro Mechanical Systems, 1997. MEMS '97, Proceedings, IEEE., Jan. 26, 1997.
Chea Thorl
Gibbons Del Deo Dolan Griffinger & Vecchione
Weidmann Plastics Technology AG
LandOfFree
Process for producing a tool insert for injection molding a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for producing a tool insert for injection molding a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing a tool insert for injection molding a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3629309