摘要:
A wireless communication device (102) includes a multi-mode transceiver (204) that is operable to communicate with a plurality of communication networks. The device (102) also includes a memory (216) for storing: an electronic address book (226) that includes a plurality of identifiers (302), each identifier (302) identifying a call destination device; a plurality of access network choices (304) for at least one of the identifiers (302); and a plurality of service choices (308) for at least one of the identifiers. The device (102) further includes a controller (210) having access to the memory (216) for determining a preferred call model and selecting one of the plurality of access network choices and one of the plurality of service choices as a preferred call model for at least one of the identifiers.
摘要:
A plurality of sensor clusters are provided (61) wherein at least some of the sensor clusters are comprised of at least one light sensitive sensor and a plurality of light emitters. These sensor clusters are disposed (62) in close proximity to a subject user and, in a preferred approach, at least some of the sensor clusters are disposed substantially distal to one another. The light emitters are caused (63) to emit light and the light sensitive sensors are used (64) to detect interactions as between the subject user and the emitted light. These detected interactions are then used (65) to determine the user's heart rate. In a preferred embodiment, the sensed interaction information is dynamically modified as a reflection of how valid the information trajectory appears to be at any given time.
摘要:
A microelectronic package (10) is formed by placing a lead frame (22) onto an adhesive polyimide tape (38). The lead frame (22) includes a plurality of metallic leads (16) and an opening. An integrated circuit die (12) is positioned onto the molding support (38) within the opening such that a non-active face (32) of the integrated circuit die (12) rests against the molding support (38). Wire leads (18) connect an active face (28) of the integrated circuit die (12) to the metallic leads (16). A plurality of metallic bumps (20) are attached to the metallic leads (16), and a polymeric precursor is dispensed. The precursor embeds the active face (28) of the integrated circuit die (12), the inner surface (19) of the metallic leads (16), the wire leads (18), and the metallic bumps (20). The microelectronic package (10) is then heated to cure the polymeric precursor to form a polymeric body (14). The microelectronic package (10) is then capable of being tested and subsequently attached to printed circuit board (40) to form a low-profile microelectronic assembly (11).
摘要:
A temporary substrate for solder bumps may be used to transfer solder bumps to a microelectronic device. The temporary substrate includes a solder nonwettable surface and a plurality of conductive vias therein. A solder bump is formed on each of the conductive vias and is electrically and mechanically connected thereto. The solder bump extends over the solder nonwettable surface to produce a solder bump cross-sectional area which is greater than the cross-sectional area of the conductive via. A microelectronic device is placed adjacent the temporary substrate with each input/output pad adjacent a respective solder bump. An electrical and mechanical connection is formed between the solder bump and the input/output pad, and the microelectronic device is separated from the temporary substrate with the solder bump remaining connected to the input/output pad. The temporary substrate can also be used for burn-in and testing of microelectronic devices and rework on multichip modules.
摘要:
A high performance integrated circuit chip package includes a support substrate having conductors extending from one face to the opposite face thereof and a multilayer wiring substrate on the opposite face of the support substrate for connecting chips mounted thereon to one another and to the conductors. A heat sink includes microchannels at one face thereof, with thermally conductive cushions connecting the one face of the heat sink with the exposed back sides of the chips, to provide a high density chip package with high heat dissipation. The support substrate and heat sink may be formed of blocks of material having thermal expansion matching silicon. The cushions are a low melting point solder, preferably pure indium, and are sufficiently thick to absorb thermal stresses, but sufficiently thin to efficiently conduct heat from the chips to the heat sink.
摘要:
A method of forming a high density semiconductor structure including one or more buried metal layers. One or more metal layers may be formed on a first semiconductor substrate, with the metal layer or layers being insulated from one another and from the substrate. One or more metal layers may be formed on the surface of a second substrate which may or may not be a semiconductor substrate. The topmost metal layers, either or both of which may have an insulating layer thereon, are placed in contact and heated in an oxidizing ambient atmosphere to form a bond therebetween. One or more vias connect the buried metal layers to the active devices in the substrates. The buried metal layers may form buried power and ground planes and buried metallization patterns for device interconnection.