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Christopher A. Bang, San Diego US

Christopher A. Bang, San Diego, CA US

Patent application numberDescriptionPublished
20080211524Electrochemically Fabricated Microprobes - Multilayer probe structures for testing semiconductor die are electrochemically fabricated via depositions of one or more materials in a plurality of overlaying and adhered layers. In some embodiments the structures may include generally helical shaped configurations, helical shape configurations with narrowing radius as the probe extends outward from a substrate, bellows-like configurations, and the like. In some embodiments arrays of multiple probes are provided.09-04-2008
20080246558Miniature RF and Microwave Components and Methods for Fabricating Such Components - RF and microwave radiation directing or controlling components are provided that may be monolithic, that may be formed from a plurality of electrodeposition operations and/or from a plurality of deposited layers of material, that may include switches, inductors, antennae, transmission lines, filters, and/or other active or passive components. Components may include non-radiation-entry and non-radiation-exit channels that are useful in separating sacrificial materials from structural materials. Preferred formation processes use electrochemical fabrication techniques (e.g. including selective depositions, bulk depositions, etching operations and planarization operations) and post-deposition processes (e.g. selective etching operations and/or back filling operations).10-09-2008
20090015903Complex Microdevices and Apparatus and Methods for Fabricating Such Devices - Various embodiments of the invention are directed to various microdevices including sensors, actuators, valves, scanning mirrors, accelerometers, switches, and the like. In some embodiments the devices are formed via electrochemical fabrication (EFAB®).01-15-2009
20090256583Vertical Microprobes for Contacting Electronic Components and Method for Making Such Probes - Multilayer probe structures for testing or otherwise making electrical contact with semiconductor die or other electronic components are electrochemically fabricated via depositions of one or more materials in a plurality of overlaying and adhered layers. In some embodiments the structures may include configurations intended to enhance functionality, buildability, or both.10-15-2009
20100006443Electrochemical Fabrication Method for Producing Compliant Beam-Like Structures - Embodiments of the invention are directed to the formation of beam-like structures using electrochemical fabrication techniques where the beam like structures have narrow regions and wider regions such that a beam of desired compliance is obtained. In some embodiments, narrower regions of the beam are thinner than a minimum feature size but are formable as a result of the thicker regions. In some embodiments the beam-like structures are formed from a plurality of adhered layers.01-14-2010
20100133109Electrochemically Fabricated Hermetically Sealed Microstructures and Methods of and Apparatus for Producing Such Structures - In some embodiments, multilayer structures are electrochemically fabricated from at least one structural material (e.g. nickel), at least one sacrificial material (e.g. copper), and at least one sealing material (e.g. solder). In some embodiments, the layered structure is made to have a desired configuration which is at least partially and immediately surrounded by sacrificial material which is in turn surrounded almost entirely by structural material. The surrounding structural material includes openings in the surface through which etchant can attack and remove trapped sacrificial material found within. Sealing material is located near the openings. After removal of the sacrificial material, the box is evacuated or filled with a desired gas or liquid. Thereafter, the sealing material is made to flow, seal the openings, and resolidify. In other embodiments, a post-layer formation lid or other enclosure completing structure is added.06-03-2010
20100133952Complex Microdevices and Apparatus and Methods for Fabricating Such Devices - Various embodiments of the invention are directed to various microdevices including sensors, actuators, valves, scanning mirrors, accelerometers, switches, and the like. In some embodiments the devices are formed via electrochemical fabrication (EFAB®).06-03-2010
20100134131Electrochemically Fabricated Microprobes - Multilayer probe structures for testing semiconductor die are electrochemically fabricated via depositions of one or more materials in a plurality of overlaying and adhered layers. In some embodiments the structures may include generally helical shaped configurations, helical shape configurations with narrowing radius as the probe extends outward from a substrate, bellows-like configurations, and the like. In some embodiments arrays of multiple probes are provided.06-03-2010
20100136851 Fabrication Process for Co-Fabricating a Multilayer Probe Array and a Space Transformer - Embodiments of the invention provide electrochemical fabrication processes that may be used for the fabrication of space transformers or the co-fabrication of microprobe arrays along with one or more space transformers.06-03-2010
20100155253Microprobe Tips and Methods for Making - Embodiments of the present invention are directed to the formation of microprobe tips elements having a variety of configurations. In some embodiments tips are formed from the same building material as the probes themselves, while in other embodiments the tips may be formed from a different material and/or may include a coating material. In some embodiments, the tips are formed before the main portions of the probes and the tips are formed in proximity to or in contact with a temporary substrate. Probe tip patterning may occur in a variety of different ways, including, for example, via molding in patterned holes that have been isotropically or anisotropically etched silicon, via molding in voids formed in exposed photoresist, via molding in voids in a sacrificial material that have formed as a result of the sacrificial material mushrooming over carefully sized and located regions of dielectric material, via isotropic etching of the tip material around carefully sized and placed etching shields, via hot pressing, and the like.06-24-2010
20100176834Cantilever Microprobes For Contacting Electronic Components and Methods for Making Such Probes - Embodiments disclosed herein are directed to compliant probe structures for making temporary or permanent contact with electronic circuits and the like. In particular, embodiments are directed to various designs of cantilever-like probe structures. Some embodiments are directed to methods for fabricating such cantilever structures. In some embodiments, for example, cantilever probes have extended base structures, slide in mounting structures, multi-beam configurations, offset bonding locations to allow closer positioning of adjacent probes, compliant elements with tensional configurations, improved over travel, improved compliance, improved scrubbing capability, and/or the like.07-15-2010
20100213068Methods of and Apparatus for Molding Structures Using Sacrificial Metal Patterns - Molded structures, methods of and apparatus for producing the molded structures are provided. At least a portion of the surface features for the molds are formed from multilayer electrochemically fabricated structures (e.g. fabricated by the EFAB™ formation process), and typically contain features having resolutions within the 1 to 100 μm range. The layered structure is combined with other mold components, as necessary, and a molding material is injected into the mold and hardened. The layered structure is removed (e.g. by etching) along with any other mold components to yield the molded article. In some embodiments portions of the layered structure remain in the molded article and in other embodiments an additional molding material is added after a partial or complete removal of the layered structure.08-26-2010
20110080236Miniature RF and Microwave Components and Methods for Fabricating Such Components - RF and microwave radiation directing or controlling components are provided that may be monolithic, that may be formed from a plurality of electrodeposition operations and/or from a plurality of deposited layers of material, that may include switches, inductors, antennae, transmission lines, filters, and/or other active or passive components. Components may include non-radiation-entry and non-radiation-exit channels that are useful in separating sacrificial materials from structural materials. Preferred formation processes use electrochemical fabrication techniques (e.g. including selective depositions, bulk depositions, etching operations and planarization operations) and post-deposition processes (e.g. selective etching operations and/or back filling operations).04-07-2011

Patent applications by Christopher A. Bang, San Diego, CA US