Portable electronic device with enhanced battery life and cooling

    公开(公告)号:AU9055801A

    公开(公告)日:2002-03-04

    申请号:AU9055801

    申请日:2001-08-22

    Applicant: MOTOROLA INC

    Abstract: Battery life and cooling are improved in an electronic device. A thermoelectric module and phase change material module are placed near a heat source in an electronic device. The thermoelectric module and phase change material module insulate a surface to be cooled on the electronic device. The thermoelectric module generates an electrical current in response to a temperature differential at opposite surfaces on the thermoelectric module. The phase change material module enhances or limits the temperature differential seen at the thermoelectric module. The electrical current generated by the thermoelectric module is used to charge a battery of the electronic device.

    A THINNED SEMICONDUCTOR WAFER AND DIE AND CORRESPONDING METHOD

    公开(公告)号:AU2003268514A1

    公开(公告)日:2004-03-29

    申请号:AU2003268514

    申请日:2003-09-05

    Applicant: MOTOROLA INC

    Abstract: A wafer (10) having integrated circuit elements formed therein is thinned and a first carrier (41) is adhered thereto. The first carrier (41) facilitates handling of the thinned wafer (30). A second carrier (51) is then adhered as well and the various integrated circuits are singulated to yield a plurality of thinned die (81). Once the thinned die is mounted to a desired substrate (91), the first carrier (41) is readily removed. In one embodiment, the first carrier (41) has an adhesive that becomes less adherent when exposed to a predetermined stimulus (such as a given temperature range or a given frequency range of photonic energy). Such thinned die (or modules containing such die) are readily amenable to stacking in order to achieve significantly increased circuit densities.

    Micro-electro mechanical system and method of making

    公开(公告)号:AU2002356062A1

    公开(公告)日:2003-03-03

    申请号:AU2002356062

    申请日:2002-07-13

    Applicant: MOTOROLA INC

    Abstract: The organic MEMS according to the present invention comprises a polymeric substrate comprising a substrate surface including a first region and a second region. A polymer coating is applied to the first region to provide a coating surface that is spaced apart from the substrate surface. A terminal is disposed on the second region. A metallic trace is affixed to the coating surface such that the metallic trace forms a flexible extension over the second region. The extension has a rest position where the extension is spaced apart from the terminal, and a flexed position where the extension is disposed towards the terminal. An actuator is used to provide an electric field to deflect the extension from the rest position to the flexed position. By changing the spacing between the extension and the terminal, it is possible to change the electrical condition provided by the MEMS.

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