Abstract: A rechargeable battery indictor for indicating a battery charge of a rechargeable battery is presented. The rechargeable battery indicator has a body for attaching to a rechargeable battery and has a front side, a back side, a first indicator, a second indicator, a third indicator and an indicator switch. The first indicator is indicative of a charge level of the rechargeable battery. The second indicator is indicative of a charge level of the rechargeable battery. The third indicator is indicative of a charge level of the rechargeable battery. The rechargeable battery indicator has an indicator switch, which has at least three positions. The indicator switch has a tab that is positioned to indicate the charge level of the rechargeable battery. The body also has an adhesive strip for coupling the body to the rechargeable battery. The body determines the charge level of the rechargeable battery.

Abstract: Fabrication methods for capacitive-micromachined ultrasound transducers (“cMUT”) and cMUT imaging array systems are provided. cMUT devices fabricated from low process temperatures are also provided. In an exemplary embodiment, a process temperature can be less than approximately 300 degrees Celsius. A cMUT fabrication method generally comprises depositing and patterning materials on a substrate (400). The substrate (400) can be silicon, transparent, other materials. In an exemplary embodiment, multiple metal layers (405, 410, 415) can be deposited and patterned onto the substrate (400); several membrane layers (420, 435, 445) can be deposited over the multiple metal layers (405, 410, 415); and additional metal layers (425, 430) can be disposed within the several membrane layers (420, 435, 445). The second metal layer (410) is preferably resistant to etchants used to etch the third metal layer (415) when forming a cavity (447). Other embodiments are also claimed and described.