Abstract: A 3D-IC detector for each layer of a stacked device comprises a pulse generator to receive an initial signal and generate a pulse-in signal to a next stage detector. A latch is coupled to the pulse generator to receive an output signal from the pulse generator and generate a layer identifying signal. A counter is coupled to previous stage detector and the initial signal to perform a counting operation; and an adder coupled to the counter to add a number to a counting output from the counter and input added signal to the pulse generator.

Abstract: A layer-ID detector for multilayer 3D-IC, including a random generator to generate a random signal, a layer-ID designation mechanism circuit coupled to the random generator to generate a layer-ID designating signal, and a counter coupled to the layer-ID designating signal to output a layer-ID signal.

Abstract: A 3D-IC detector for each layer of a stacked device with N layer, includes a dividing-two circuit coupled to a (N?1) signal; a first comparator is coupled to the dividing-two circuit, wherein an input A is coupled to an initial layer number signal, an input B of the first comparator is coupled to an output of the dividing-two circuit; a second comparator is coupled to the initial layer number by an input A of the second comparator, and a num is coupled to an input B of the second comparator; a first Add/sub circuit is coupled to the num via an input A of the first Add/sub circuit, and coupled to the first comparator via an input B of the first Add/sub circuit, to the second comparator via an input +/? signal of the first Add/sub circuit; and a second Add/sub circuit coupled to the first comparator via an input A of the second Add/sub circuit, to the num via an input B of the second Add/sub circuit.

Abstract: A layer-ID detector for multilayer 3D-IC, including a random generator to generate a random signal, a layer-ID designation mechanism circuit coupled to the random generator to generate a layer-ID designating signal, and a counter coupled to the layer-ID designating signal to output a layer-ID signal.

Abstract: A mobile electronic device is provided. The mobile electronic device includes a case having a sidewall; a circuit board mounted in the case, and a side button module attached to the case sidewall. The circuit board includes a switch disposed thereon. The side button module includes a positioning member secured to the case sidewall and a button secured to the positioning member. The button includes a base and an actuating protrusion protruding from the base. The base abuts the positioning member. The actuating protrusion extends through the positioning member and is configured to trigger the switch on the circuit board when actuated. The positioning member is sandwiched between the base and the actuating protrusion.

Abstract: A 3D-IC detector for each layer of a stacked device with N layer, includes a dividing-two circuit coupled to a (N?1) signal; a first comparator is coupled to the dividing-two circuit, wherein an input A is coupled to an initial layer number signal, an input B of the first comparator is coupled to an output of the dividing-two circuit; a second comparator is coupled to the initial layer number by an input A of the second comparator, and a num is coupled to an input B of the second comparator; a first Add/sub circuit is coupled to the num via an input A of the first Add/sub circuit, and coupled to the first comparator via an input B of the first Add/sub circuit, to the second comparator via an input +/?signal of the first Add/sub circuit; and a second Add/sub circuit coupled to the first comparator via an input A of the second Add/sub circuit, to the num via an input B of the second Add/sub circuit.

Abstract: A 3D-IC detector for each layer of a stacked device comprises a pulse generator to receive an initial signal and generate a pulse-in signal to a next stage detector. A latch is coupled to the pulse generator to receive an output signal from the pulse generator and generate a layer identifying signal. A counter is coupled to previous stage detector and the initial signal to perform a counting operation; and an adder coupled to the counter to add a number to a counting output from the counter and input added signal to the pulse generator.

Abstract: A keypad module for a mobile electronic device is provided. The mobile electronic device has a main body. The keypad module includes a receiving bracket adapted to be mounted on the main body. A flexible circuit board is arranged in the receiving bracket. A switching sheet is located above the flexible circuit board, and capable of actuating the flexible circuit board to produce electrical signal. A rubber sheet is disposed on the switching sheet, and shielding cover sits on the rubber sheet. Wherein the shielding cover is secured to receiving bracket. The shielding cover and the receiving bracket cooperatively define a receiving housing to accommodate the flexible circuit, the switching sheet, and the rubber sheet.

Abstract: A mobile electronic device is provided. The mobile electronic device includes a case having a sidewall; a circuit board mounted in the case, and a side button module attached to the case sidewall. The circuit board includes a switch disposed thereon. The side button module includes a positioning member secured to the case sidewall and a button secured to the positioning member. The button includes a base and an actuating protrusion protruding from the base. The base abuts the positioning member. The actuating protrusion extends through the positioning member and is configured to trigger the switch on the circuit board when actuated. The positioning member is sandwiched between the base and the actuating protrusion.

Abstract: A keypad module for a mobile electronic device is provided. The mobile electronic device has a main body. The keypad module includes a receiving bracket adapted to be mounted on the main body. A flexible circuit board is arranged in the receiving bracket. A switching sheet is located above the flexible circuit board, and capable of actuating the flexible circuit board to produce electrical signal. A rubber sheet is disposed on the switching sheet, and shielding cover sits on the rubber sheet. Wherein the shielding cover is secured to receiving bracket. The shielding cover and the receiving bracket cooperatively define a receiving housing to accommodate the flexible circuit, the switching sheet, and the rubber sheet.

Abstract: An electromagnetic shielding device disposed on a printed circuit board (PCB) and including a frame and a cap is provided. The frame is disposed on the printed circuit board and made of metallic material. The cap is disposed on the frame and made of conductive rubber. The periphery of the cap is assembled with the frame, such that a closed space is formed between the cap and the frame to enclose an electronic component that is disposed on the printed circuit board.

Abstract: A structure of a shielding case is changed into a fixing apparatus for holding a digital photography module on a mobile telephone. A first component of the fixing apparatus has several folded sides. These folded sides are used to fix the horizontal movement of the digital photography module. A second component of the fixing apparatus has at least one engagement portion. The engagement portion is used to fix the vertical movement of the digital photography module.

Abstract: A structure of a shielding case is changed into a fixing apparatus for holding a digital photography module on a mobile telephone. A first component of the fixing apparatus has several folded sides. These folded sides are used to fix the horizontal movement of the digital photography module. A second component of the fixing apparatus has at least one engagement portion. The engagement portion is used to fix the vertical movement of the digital photography module.