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Fjelstad, US

Alex Fjelstad, Hopkins, MN US

Patent application numberDescriptionPublished
20090128360ELECTRONIC TAG LOCATION SYSTEM - A system for locating one or more radio frequency identification (RFID) tags, the system comprising a radio frequency (RF) receiver including a receiver processor, the receiver adapted to programmably adjust reception range depending on a programmably variable attenuation parameter, the receiver further adapted to receive identification data from the one or more RFID tags, and a system host adapted to receive RFID tag data from any of the one or more RFID tags within the reception range and receiver attenuation data associated with the receiver, and provide an estimated location area for a received RFID tag using the RFID tag data and the receiver attenuation data. Other examples include methods for determining an RFID tag's location.05-21-2009

Joseph Fjelstad, Maple Valley, WA US

Patent application numberDescriptionPublished
20090200654Method of electrically connecting a microelectronic component - A microelectronic assembly is provided which can include an element including a first dielectric layer and a second dielectric layer overlying the first dielectric layer, the second dielectric layer having an exposed surface defining an exposed major surface of the element. A plurality of substantially rigid metal posts can project beyond the exposed surface, the metal posts having ends remote from the exposed surface. The microelectronic assembly can include a microelectronic device which has bond pads and overlies the element. The microelectronic device can have a major surface which confronts the posts. Connections electrically connect the ends of the metal posts with the bond pads of the microelectronic device.08-13-2009
20090200655Method of electrically connecting a microelectronic component - A microelectronic unit can include a support structure including a dielectric having oppositely-directed first and second surfaces. A plurality of substantially rigid posts can protrude parallel to one another in a direction beyond the first surface of the support structure. Each post may have a top surface remote from the support structure, and the top surfaces can be substantially coplanar with one another. A microelectronic device having a surface with bond pads can overlie the second surface of the support structure with the bond pad-bearing surface of the microelectronic device facing toward the support structure. Connections can electrically connect the posts with the bond pads.08-13-2009
20090236406Method of electrically connecting a microelectronic component - A method of treating a component can include providing a component including a plurality of metallic posts extending generally parallel to one another. The providing step can be performed so that the posts have solder on the tips of the posts but not covering other portions of the posts. The method can include reflowing the solder provided on the posts so that the solder coats the posts. The providing step may be performed so that, prior to the reflowing step, the solder covers only the tips of the posts. The providing step can include depositing portions of the solder on a surface of a metallic sheet and etching the sheet from the surface. The plurality of posts may comprise elongated posts.09-24-2009
20100035382Methods of making compliant semiconductor chip packages - A method of making a semiconductor chip package is provided in which a compliant layer is provided over a contact bearing face of a semiconductor chip. The compliant layer can have a bottom surface adjacent to the chip face, a top surface facing away from the bottom surface, and at least one sloping surface between the top and bottom surfaces. The compliant layer can be disposed remote in a lateral direction along the contact bearing face from at least one contact adjacent to the sloping surface. Bond ribbons can be formed atop the compliant layer, wherein each bond ribbon electrically connects one of the contacts to an associated conductive terminal at the top surface of the compliant layer. The compliant layer can provide stress relief to the bond ribbons, such as during handling and affixing the assembly to an external substrate. A bond ribbon can include a strip extending along the sloping surface of the compliant layer, the strip having a substantially constant thickness in a direction extending away from the sloping surface.02-11-2010
20110095441MICROELECTRONIC ASSEMBLIES HAVING COMPLIANT LAYERS - A compliant semiconductor chip package assembly includes a semiconductor chip having a plurality of chip contacts, and a compliant layer having a top surface, a bottom surface and sloping peripheral edges, whereby the bottom surface of the compliant layer overlies a surface of the semiconductor chip. The assembly also includes a plurality of electrically conductive traces connected to the chip contacts of the semiconductor chip, the traces extending along the sloping edges to the top surface of the compliant layer. The assembly may include conductive terminals overlying the semiconductor chip, with the compliant layer supporting the conductive terminals over the semiconductor chip. The conductive traces have first ends electrically connected with the contacts of the semiconductor chip and second ends electrically connected with the conductive terminals. The conductive terminals are movable relative to the semiconductor chip.04-28-2011

Patent applications by Joseph Fjelstad, Maple Valley, WA US

Joseph C. Fjelstad US

Patent application numberDescriptionPublished
20080211071Memory IC Package Assembly Having Stair Step Metal Layer and Apertures - Disclosed is a low cost memory IC package assembly having a first metal layer bonded to the die and a dielectric insulating layer with circuits and with apertures to expose the first metal layer bonded thereto.09-04-2008

Joseph Charles Fjelstad, Maple Valley, WA US

Patent application numberDescriptionPublished
20090091019Memory Packages Having Stair Step Interconnection Layers - Disclosed are IC package structures having stair stepped layers and which have no plated vias. Such structures can be fabricated either as discrete packages or as strips such as might be beneficial in for use with memory devices wherein critical or high speed signals can be routed along the length of the multi-chip strip package without having to have the signals ascend and descend from the interconnection substrate on which the assembly is mounted to the IC package termination and back as the signal transmits between devices.04-09-2009

Kyle Fjelstad, Trabucco Canyon, CA US

Patent application numberDescriptionPublished
20080287151APPARATUS AND METHOD FOR COMMUNICATING WITH AN ASSET MONITORING DEVICE VIA TEXT MESSAGE - A system enables communications between a mobile wireless communication device, such as a cellular phone, and an asset monitoring device using a text messaging protocol, such as Short Message Service (SMS). A command text message is entered on the mobile wireless device including a serial number of the asset monitoring device, a PIN and a command for the monitoring device. The command text message is transmitted via a wireless communication network and is forwarded to a service provider. Upon validation of the serial number and PIN, the service provider transmits a command to the wireless asset monitoring device via the wireless communication network. The wireless asset monitoring device receives the command and performs an action based thereon. For example, if the command is a LOCATE command, the wireless monitoring device transmits its current location, such as in latitude/longitude coordinates. The wireless asset monitoring device also transmits a response indicating a completed action or indicating that action was not taken for some reason. The service provider receives the response from the monitoring unit, parses the response, and constructs a report text message which is transmitted to the user's mobile communication device. The report text message is then displayed on the mobile communication device.11-20-2008