Abstract: A gate oxide layer for a high voltage transistor is formed using methods that avoid thinning in the corners of the gate oxide layer. A recess is formed in a silicon substrate. The exposed surfaces of the recess are thermally oxidized to form a thermal oxide layer of the gate oxide layer. A high temperature oxide layer of the gate oxide layer is then formed within the exposed surfaces of the recess by chemical vapor deposition. The combination of the thermal oxide layer and the high temperature oxide layer results in a gate oxide layer that does not exhibit the double hump phenomenon in the drain current vs. gate voltage curve. The high temperature oxide layer may include a rim that extends out of the recess.

Abstract: Some embodiments relate to an integrated circuit device incorporating an etched recessed gate dielectric region. The integrated circuit device includes a substrate including a first upper surface, a gate dielectric region disposed at the first upper surface of the substrate and extending into the substrate, and a gate structure disposed over the gate dielectric region. The gate dielectric region includes a second upper surface and forms a recess extending below the second upper surface. The second upper surface includes a perimeter portion surrounding the recess. The gate structure completely covers the second upper surface of the gate dielectric region and extends into the recess.

Abstract: A semiconductor package includes a substrate, a semiconductor device, and a ring structure. The semiconductor device disposed on the substrate. The ring structure disposed on the substrate and surrounds the semiconductor device. The ring structure includes a first portion and a second portion. The first portion bonded to the substrate. The second portion connects to the first portion. A cavity is between the second portion and the substrate.

Abstract: A charging device and a safety function control circuit and method thereof are provided. When a charging device is not connected to a load, a converted voltage value of a power connection terminal of the charging device is kept to be lower than a safe voltage value so as to maintain a safe mode. The safety function control circuit includes a first control module and a second control module for constant voltage control. The first control module and the second control module perform matching control on a power conversion circuit of the charging device, and in case of a single fault of one of the control modules, the other module is still capable of keeping the converted voltage value to be less than the safe voltage value. Thus, it is ensured that the safe mode stays functional in case of a concurrency of both a single hardware fault and a single firmware fault.

Abstract: A vibrotactile device and method including an audio signal input unit, manual parameter input unit, microcontroller, vibration motor controller, and at least one vibration motor are provided. The microcontroller is coupled to the audio signal input unit and manual parameter input unit. The vibration motor controller is coupled to the microcontroller and the at least one vibration motor. At least one signal is generated by at least the audio signal input unit or the manual parameter input unit. A modulated signal is generated based, in part, on a filtered signal from the audio signal input unit and a vibration duty cycle is generated, based on a tempo value and a note value of the manual parameter input unit, to generate at least one driving parameter, respectively. The vibration motor controller drives the at least one vibration motor based on the at least one driving parameter.

Abstract: A battery contact mechanism (10) including a battery contact spring (12) for electrically connecting a battery (24) with electronic componentry (20) within a battery-powered device (14), such as, for example, a portable, hand-held GPS unit or personal digital assistant (PDA). The battery contact mechanism (10) includes a single-piece battery contact spring (12), including a center section (34), an upper tang (36) for contacting the battery (24), and a lower tang (38) for contacting the electronic componentry (20); a post or rib projection (28) for securing the spring (12) within the device (14); and a sealant reservoir (30) for preventing leakage of moisture or other substances to the electronic componentry (20).

Abstract: A battery contact mechanism (10) including a battery contact spring (12) for electrically connecting a battery (24) with electronic componentry (20) within a battery-powered device (14), such as, for example, a portable, hand-held GPS unit or personal digital assistant (PDA). The battery contact mechanism (10) includes a single-piece battery contact spring (12), including a center section (34), an upper tang (36) for contacting the battery (24), and a lower tang (38) for contacting the electronic componentry (20); a post or rib projection (28) for securing the spring (12) within the device (14); and a sealant reservoir (30) for preventing leakage of moisture or other substances to the electronic componentry (20).