A wafer thinning system and method are disclosed that includes grinding away substrate material from a backside of a semiconductor device. The sensor includes an amplifier section that amplifies a voltage across opposite ends of at least one of resistors that constitute a bridge circuit, a current control section that is controlled based on an output voltage of the amplifier section, and an output terminal that is connected to one end of a heating element that is controlled to be energized by the current control section. The present utility model provides a baling bracket, including a keel, a stem with screw thread, a bracket, a washer, and skidproof veins. As a result, RF front-end switching circuitry in the RF communications system may be simplified, thereby reducing insertion losses, reducing costs, reducing size, or any combination thereof. The assembly has an insert that contains a storage medium and a reusable disk cartridge that can be opened and closed for insertion and removal of the insert. The method, implemented by the handheld electronic device, includes enabling the short-range wireless communications element, pairing the handheld electronic device with a second electronic device using the short-range wireless communications element, and providing a first icon on the handheld electronic device after pairing the handheld electronic device with the second electronic device.