Abstract: The techniques disclosed herein provide methods, devices, and systems to compensate the drive waveform to a slow-scan mirror in a laser beam scanning (LBS) display device. The slow-scan controller generates the drive waveform, which is combined with feedback and coupled to the input of a notch filter in the control loop. Ripple in the slow-scan mirror trajectory, which occurs as a consequence of mismatches between the notch frequency of the notch filter and the resonance of the slow-scan mirror, is effectively suppressed in real time by an adaptive notch compensator. Consequently, the described compensation scheme allows for relaxed notch filter design criteria with high tolerance and mitigation of ripple is achieved at reduced cost. The parameters, logic and blocks of the adaptive notch compensator scheme may be time-domain or frequency domain solutions that are implemented, in hardware, software or combinations thereof.

Abstract: A laser beam scanning (“LBS”) display device is configured with an optical system that includes a laser beam emitter configured to emit a laser beam. The optical system also includes a driver configured to generate a driving signal for controlling a mirror, such as a microelectromechanical systems (“MEMS”) mirror. The optical system also includes a controller configured to generate a driving signal while rejecting a system disturbance response.

Abstract: A laser beam display device that can dynamically control the resonant frequency of a mirror is provided. The increase the reliability of a device by controlling the resonant frequency of a mirror instead of requiring components of a display device to react to changes in the resonant frequency of a mirror. A controller can drive a mirror with an input signal, receive a signal or data indicating a target resonant frequency, and bias the input signal to control the resonant frequency of the mirror. In some embodiments, the controller can also receive a feedback signal from a mirror indicating a current resonant frequency. The controller can also bias the input signal to increase or decrease the current resonant frequency. By dynamically controlling the resonant frequency of a mirror, a device can minimize any difference between the current resonant frequency detected in a feedback signal and the target resonant frequency.

Abstract: A composite for generating hydrogen includes several core-shell structures, each of which include a silicon-containing core and a shell covering the surface of the silicon-containing core. The shell includes a hydrophilic layer covering the surface of the silicon-containing core and an alkali material covering the hydrophilic layer.

Abstract: Techniques are described herein that are capable of adjusting a notch frequency of an adaptive notch filter (“filter”) to track a resonant frequency of a slow scan MEMS mirror (“mirror”). For instance, an adaptive feedback may be configured to determine one or more resonant frequencies of the mirror based at least in part on a frequency response of an output signal that is proportional to movement of the mirror. The adaptive feedback may be further configured to adjust at least one notch frequency of the filter to track at least one respective resonant frequency of the mirror. The filter may be configured to modify a magnitude of a frequency response of a combination of the filter and the mirror to be substantially constant by suppressing the at least one notch frequency in a frequency response of the mirror.

Abstract: A laser beam display device that can dynamically control the resonant frequency of a mirror is provided. The increase the reliability of a device by controlling the resonant frequency of a mirror instead of requiring components of a display device to react to changes in the resonant frequency of a mirror. A controller can drive a mirror with an input signal, receive a signal or data indicating a target resonant frequency, and bias the input signal to control the resonant frequency of the mirror. In some embodiments, the controller can also receive a feedback signal from a mirror indicating a current resonant frequency. The controller can also bias the input signal to increase or decrease the current resonant frequency. By dynamically controlling the resonant frequency of a mirror, a device can minimize any difference between the current resonant frequency detected in a feedback signal and the target resonant frequency.

Abstract: An image sensor device is provided. The image sensor device includes a semiconductor substrate including a front surface, a back surface opposite to the front surface, and a light-sensing region extending from the front surface into the semiconductor substrate. The image sensor device includes a light-blocking structure in the semiconductor substrate and surrounding the light-sensing region. The light-blocking structure includes a conductive light reflection structure and a light absorption structure, and the light absorption structure is between the conductive light reflection structure and the back surface. The image sensor device includes an insulating layer between the light-blocking structure and the semiconductor substrate.

Abstract: A composite particle for electrode includes a carbon matrix, a plurality of active nanoparticles and a plurality of graphite particles. The active nanoparticles are randomly dispersed in the carbon matrix. Each of the active nanoparticles includes an active material and a protective layer. The protective layer covers the active material, and the protective layer is an oxide, a carbide or a nitride of the active material. The graphite particles are randomly dispersed in the carbon matrix. A volume fraction of the protective layer in each of the active nanoparticles is smaller than 23.0%.

Abstract: The description relates to computing devices that employ steerable optics. One example includes a steering mechanism and a base substrate positioned relative to the steering mechanism. The example also includes an optical substrate positioned over the base substrate and an adhesive complex securing the optical substrate relative to the base substrate with multiple different types of adhesives.

Abstract: A structure of a semiconductor device includes a substrate, an isolation structure, and a liner layer. The isolation structure is embedded in the substrate. The isolation structure has a bottom surface and a sidewall. The liner layer is between the substrate and the isolation. A first portion of the liner layer in contact with the sidewall of the isolation structure has a nitrogen concentration lower than a second portion of the liner layer in contact with the bottom surface of the isolation structure.

Abstract: The description relates to computing devices that employ steerable optics. One example includes a steering mechanism and a base substrate positioned relative to the steering mechanism. The example also includes an optical substrate positioned over the base substrate and an adhesive complex securing the optical substrate relative to the base substrate with multiple different types of adhesives.

Abstract: A resonance system is disclosed, which includes a first resonance device configured to receive a drive signal and generate an output signal, a second resonance device configured to receive a control signal and generate the drive signal based on the received control signal, and a controller configured to generate the control signal based on the output signal such that a phase difference between the control signal applied to the second resonance device and the output signal of the first resonance device corresponds to a predetermined phase shift value.

Abstract: Techniques are described herein that are capable of adjusting a center frequency of an adaptive voltage controlled oscillator (VCO) that is included in an adaptive phase lock loop (PLL) and/or a phase difference target of the adaptive PLL. An adaptive PLL is a PLL that includes an adaptive VCO. An adaptive VCO is a VCO that is capable of adjusting its center frequency and/or a phase difference target of the adaptive PLL that includes the adaptive VCO. The adaptive PLL may be configured to drive (e.g., control) a device. A drive signal that is used to drive the device and a resulting output signal that is proportional to movement of the device may be fed back to respective inputs of the adaptive PLL so that the phases of those signals may be processed to facilitate adjustment of the center frequency and/or the phase difference target.

Abstract: The techniques disclosed herein provide methods and systems that adaptively adjust control system update rates to optimize power consumption for laser beam scanning display devices. A display device can adjust an update rate based on changes within the system and/or changes of a surrounding environment, e.g., vibration level, a humidity level, a temperature, a resonant frequency, and/or an age of a device. As variations of the environmental properties change, the device can increase or decrease the control system update rates. Additionally, or alternatively, the system can perform a resonance calibration process to determine a resonant frequency. Based on a change in a determined resonant frequency, the system may increase or decrease the control system update rates. By dynamically controlling the system update rates based on environmental and/or physical properties of a device, the device can optimize power consumption while maintaining a desirable image quality.

Abstract: A method includes forming a flowable dielectric layer in a trench of a substrate; curing the flowable dielectric layer; and annealing the cured flowable dielectric layer to form an insulation structure and a liner layer. The insulation structure is formed in the trench, the liner layer is formed between the insulation structure and the substrate, and the liner layer includes nitrogen.

Abstract: Examples are disclosed that relate to producing a viewable image using a plurality of individually-addressable vertical cavity surface emitting lasers (VCSELs) arranged into an array. In one example, a display system comprises a light source comprising a plurality of VCSELs arranged into an array comprising one or more first color rows of VCSELs configured to produce a first color, one or more second color rows of VCSELs configured to produce a second color, and one or more third color rows of VCSELs configured to produce a third color. Each VCSEL in a given row has a coordinate that is staggered relative to a coordinate of each of the VCSELs in one or more rows adjacent to the given row. The display system also comprises a scanning system to direct light from at least a portion of the plurality of VCSELs to produce a viewable image.

Abstract: A display system includes a first light source, a second light source, at least one movable mirror, and an attenuator. The first light source is configured to provide a first light in a first optical path. The second light source is configured to provide a second light in a second optical path. A portion of the second optical path overlaps the first optical path in an overlapping portion. The attenuator is positioned in at least the first optical path and configured to attenuate at least the first light. The movable mirror is movable to deflect the overlapping portion.

Abstract: A laser beam display device that can dynamically control the resonant frequency of a mirror is provided. The increase the reliability of a device by controlling the resonant frequency of a mirror instead of requiring components of a display device to react to changes in the resonant frequency of a mirror. A controller can drive a mirror with an input signal, receive a signal or data indicating a target resonant frequency, and bias the input signal to control the resonant frequency of the mirror. In some embodiments, the controller can also receive a feedback signal from a mirror indicating a current resonant frequency. The controller can also bias the input signal to increase or decrease the current resonant frequency. By dynamically controlling the resonant frequency of a mirror, a device can minimize any difference between the current resonant frequency detected in a feedback signal and the target resonant frequency.

Abstract: The present disclosure describes a silicide formation process which employs the formation of an amorphous layer in the SiGe S/D region via an application of a substrate bias voltage during a metal deposition process. For example, the method includes a substrate with a gate structure disposed thereon and a source/drain region adjacent to the gate structure. A dielectric is formed over the gate structure and the source-drain region. A contact opening is formed in the dielectric to expose a portion of the gate structure and a portion of the source/drain region. An amorphous layer is formed in the exposed portion of the source/drain region with a thickness and a composition which is based on an adjustable bias voltage applied to the substrate. Further, an anneal is performed to form a silicide on the source/drain region.

Abstract: The techniques disclosed herein provide methods and systems that adaptively adjust control system update rates to optimize power consumption for laser beam scanning display devices. A display device can adjust an update rate based on changes within the system and/or changes of a surrounding environment, e.g., vibration level, a humidity level, a temperature, a resonant frequency, and/or an age of a device. As variations of the environmental properties change, the device can increase or decrease the control system update rates. Additionally, or alternatively, the system can perform a resonance calibration process to determine a resonant frequency. Based on a change in a determined resonant frequency, the system may increase or decrease the control system update rates. By dynamically controlling the system update rates based on environmental and/or physical properties of a device, the device can optimize power consumption while maintaining a desirable image quality.