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Kuhmann, DE

Jochen Kuhmann, Berlin DE

Patent application numberDescriptionPublished
20080315390Chip Scale Package For A Micro Component - A package includes a sensor die with a micro component, such as a MEMS device, coupled to an integrated circuit which may include, for example, CMOS circuitry, and one or more electrically conductive bond pads near the periphery of the sensor die. A semiconductor cap structure is attached to the sensor die. The front side of the cap structure is attached to the sensor die by a seal ring to hermetically encapsulate an area of the sensor die where the micro component is located. The bond pads on the sensor die are located outside the area encapsulated by the seal ring. Electrical leads, which extend along outer side edges of the semiconductor cap structure from its front side to its back side, are coupled to the micro component via the bond pads.12-25-2008
20090321760FABRICATION OF COMPACT OPTO-ELECTRONIC COMPONENT PACKAGES - A wafer-level method of fabricating an opto-electronic component package, in which the opto-electronic component is mounted to a semiconductor wafer having first and second surfaces on opposite sides of the wafer. The method includes etching vias in the first surface of the semiconductor wafer. The first surface and surfaces in the vias are metallized, and the metal is structured to define a thermal pad and to define the anode and cathode contact pads. A carrier wafer is attached on the side of the semiconductor wafer having the first surface, and the semiconductor wafer is thinned from its second surface to expose the metallization in the vias. Metal is provided on the second surface, and the metal is structured to define a die attach pad and additional anode and cathode pads for the opto-electronic component. The opto-electronic component is mounted on the die attach pad and a protective cover is formed over the opto-electronic component.12-31-2009
20100200888Silicon-Based Sub-Mount for an Opto-Electronic Device - A package for an optoelectronic device (e.g., a light emitting device such as a LED) includes a sub-mount including a silicon substrate having a thickness in the range of 350 μm-700 μm. The optoelectronic device is mounted on a die attach pad on the front-side surface of the substrate. Feed-through metallization in one or more via structures electrically couples the die attach pad to a contact pad on the back-side surface of the substrate.08-12-2010
20110045618FABRICATION OF COMPACT OPTO-ELECTRONIC COMPONENT PACKAGES - A wafer-level method of fabricating an opto-electronic component package, in which the opto-electronic component is mounted to a semiconductor wafer having first and second surfaces on opposite sides of the wafer. The method includes etching vias in the first surface of the semiconductor wafer. The first surface and surfaces in the vias are metallized, and the metal is structured to define a thermal pad and to define the anode and cathode contact pads. A carrier wafer is attached on the side of the semiconductor wafer having the first surface, and the semiconductor wafer is thinned from its second surface to expose the metallization in the vias. Metal is provided on the second surface, and the metal is structured to define a die attach pad and additional anode and cathode pads for the opto-electronic component. The opto-electronic component is mounted on the die attach pad and a protective cover is formed over the opto-electronic component.02-24-2011

Patent applications by Jochen Kuhmann, Berlin DE

Jochen F. Kuhmann, Berlin DE

Patent application numberDescriptionPublished
20100210045OPTO-ELECTRONIC DEVICE PACKAGE WITH A SEMICONDUCTOR-BASED SUB-MOUNT HAVING SMD METAL CONTACTS - Non-planar via designs for sub-mounts on which to mount a LED or other optoelectronic device include a continuous layer of metal to conduct the current from the front-side (e.g., LED side) to the backside (e.g., SMD side) through the via and to provide a sufficiently stable and reliable under bump metallization for SMD soldering. Each UBM can be structured so that it does not fully cover the sidewall surfaces of the via that forms the front-to-backside interconnect. In some implementations, each via structure for the feedthrough metallization extends to a respective side-edge of the sub-mount.08-19-2010

Karl Kuhmann, Duelmen DE

Patent application numberDescriptionPublished
20080292824Plastic Composite Moulded Bodies Obtainable by Welding in an Electromagnetic Alternating Field - The invention relates to plastics composite mouldings obtainable via welding in an alternating electromagnetic field, in which the weld is obtained with the aid of a plastics material which comprises nano-scale, magnetic oxidic particles, which are composed of aggregated primary particles, and where the primary particles are composed of magnetic metal oxide domains whose diameter is from 2 to 100 nm in a non-magnetic metal oxide matrix or non-magnetic metalloid oxide matrix.11-27-2008
20100062272TRANSPARENT PART - A transparent component, which comprises the following subcomponents: 03-11-2010

Patent applications by Karl Kuhmann, Duelmen DE

Karl Kuhmann, Dulmen DE

Patent application numberDescriptionPublished
20080217821Welding Method by Means of Electromagnetic Radiation - Two shaped articles A and B which are not directly weldable to one another can be welded to one another with the aid of a film C if the material of the first surface of this film is compatible with the material of the shaped article A and the material of the second surface of this film is compatible with the material of the shaped article B and if either the film C or a surface region in contact therewith absorbs electromagnetic radiation. The welding is carried out by brining the first surface of the film C into contact with the shaped article A and the second surface of the film C into contact with the shaped article B and inputting electromagnetic radiation.09-11-2008
20090044906METHOD FOR DECORATING SURFACES - The surface of a shaped article produced in a first step, for example by means of rapid prototyping, is subsequently decorated by a method for the production of a surface-decorated shaped article in which 02-19-2009

Patent applications by Karl Kuhmann, Dulmen DE