Abstract: A nozzle plate contains nozzles, liquid chambers and connection channels between liquid chambers and supply containers for the liquid. All the function regions are produced integrally as a microstructure body by casting from one or more microstructured mold inserts. The smallest implementable spacing of the nozzles from one another can be considerably smaller than in the previously known plates, which allows increased printing density.
Type:
Grant
Filed:
February 28, 1996
Date of Patent:
October 6, 1998
Assignee:
MicroParts GmbH
Inventors:
Holger Reinecke, Nezih Unal, Ralf-Peter Peters, Frank Bartels, Friedolin Franz Noker
Abstract: A nozzle plate contains nozzles, liquid chambers and connection channels between liquid chambers and supply containers for the liquid. All the function regions are produced integrally as a microstructure body by casting from one or more microstructured mold inserts. The smallest implementable spacing of the nozzles from one another can be considerably smaller than in the previously known plates, which allows increased printing density.
Type:
Grant
Filed:
September 17, 1996
Date of Patent:
September 22, 1998
Assignee:
MicroParts GmbH
Inventors:
Holger Reinecke, Nezih Unal, Ralf-Peter Peters, Frank Bartels, Friedolin Franz Noker
Abstract: A nozzle plate contains nozzles, liquid chambers and connection channels between liquid chambers and supply containers for the liquid. All the function regions are produced integrally as a microstructure body by casting from one or more microstructured mold inserts. The smallest implementable spacing of the nozzles from one another can be considerably smaller than in the previously known plates, which allows increased printing density.
Type:
Grant
Filed:
August 30, 1994
Date of Patent:
December 31, 1996
Assignee:
MicroParts GmbH
Inventors:
Holger Reinecke, Nezih Unal, Ralf-Peter Peters, Frank Bartels, Friedolin F. Noker
Abstract: A microstructured mold with at least one open cavity is produced from a solid body (metal, ceramic, glass, stone or monocrystalline material) by precision mechanical machining, additive or subtractive structuring. The cavity is filled and the mold covered by a flowable material and the solidified flowable material is separated from the mold giving a microstructure element. Alternatively, the top portion of the solidified flowable material is removed to expose the surface of the mold and the solidified material filling the cavity. A layer of conductive material is applied to the exposed surface and remaining solidified material. Then the conductive layer and the remaining solidified material are separated from the mold to provide a structure with a shape complementary to the mold. A layer of metal is electrodeposited on the complementary structure and, finally, the metal layer is separated to produce a metallic microstructure element.
Type:
Grant
Filed:
March 10, 1994
Date of Patent:
March 26, 1996
Assignee:
Microparts GmbH
Inventors:
Christoph Lessmo/ llmann, Joachim Eicher, Holger Reinecke
Abstract: A process to manufacture stepped mold inserts and stepped microstructural bodies molded with the mold inserts. Stepped mold inserts are manufactured using structured irradiation masks with regionally different absorption for x-radiation; to this end, extensive calculations are necessary. Furthermore, several masks can be used in succession and for each irradiation step the penetration depth of the x-radiation can be changed. These masks must be positioned with high precision. With the present process stepped mold inserts are manufactured by a simple procedure. Several layers of varying thickness are applied on a metal plate alternating with non-conductive and conductive material. The layered stack is prestructured by precision mechanical machining at depths that vary from region to region, filled with a resist material and irradiated preferably through a single structured mask.