摘要:
A touch sensor may include a digital resistive touch (DRT) sensor architecture that is substantially free of air gaps. The DRT touch sensor may include a layer of force-sensitive resistor (FSR) material on an array of row and column electrodes. The electrodes may be formed on a substantially transparent substrate. Near the intersection of each row and column, one or more thin transparent patterned conductive bridges may be situated above the FSR. The conductive bridges may be configured for electrical connection with row and column electrodes when force is applied to the conductive bridge or surface of the touch sensor. Some touch sensors may include both DRT and projected capacitive touch (PCT) functionality.
摘要:
This disclosure provides systems, methods and apparatus for sense elements in an electromechanical microphone device. In one aspect, a piezoelectric sense element may include a glass substrate, electrode layers, piezoelectric layers, and elastic layers. The elastic layers may serve to modify the neutral plane of the piezoelectric sense element. Including an elastic layer or layers to modify the neutral plane of the piezoelectric sense element may serve to configure the sense element such that the piezoelectric layer generates a voltage in response to a sound wave or may serve to increase the sensitivity of the sense element.
摘要:
This disclosure provides systems, methods and apparatus for glass packaging of integrated circuit (IC) and electromechanical systems (EMS) devices. In one aspect, a glass package may include a glass substrate, a cover glass and one or more devices encapsulated between the glass substrate and the cover glass. The cover glass may be bonded to the glass substrate with an adhesive such as an epoxy, or a metal bond ring. The glass package also may include one or more signal transmission pathways between the one or more devices and the package exterior. In some implementations, a glass package including an EMS and/or IC device is configured to be directly attached to a printed circuit board (PCB) or other integration substrate by surface mount technology.
摘要:
This disclosure provides systems, methods and apparatus for glass-encapsulated pressure sensors. In one aspect, a glass-encapsulated pressure sensor may include a glass substrate, an electromechanical pressure sensor, an integrated circuit device, and a cover glass. The cover glass may be bonded to the glass substrate with an adhesive, such as epoxy, glass frit, or a metal bond ring. The cover glass may have any of a number of configurations. In some configurations, the cover glass may partially define a port for the electromechanical pressure sensor at an edge of the glass-encapsulated pressure sensor. In some configurations, the cover glass may form a cavity to accommodate the integrated circuit device that is separate from a cavity that accommodates the electromechanical pressure sensor.
摘要:
This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for making and using x-axis gyroscopes, y-axis gyroscopes, z-axis gyroscopes, two-axis accelerometers and three-axis accelerometers. Combining fabrication processes for such devices can enable the monolithic integration of six inertial sensing axes on a single substrate, such as a single glass substrate. Such devices may be included in a mobile device, such as a mobile display device.
摘要:
This disclosure provides systems, methods and apparatus for glass-encapsulated microphones. In one aspect, a glass-encapsulated microphone may include a glass substrate, an electromechanical microphone device, an integrated circuit device, and a cover glass. The cover glass may be bonded to the glass substrate with an adhesive, such as epoxy, or a metal bond ring. The cover glass may have any of a number of configurations. In some configurations, the cover glass may define an aperture for the electromechanical microphone device at an edge of the glass-encapsulated microphone. In some configurations, the cover glass may define a cavity to accommodate the integrated circuit device that is separate from a cavity that accommodates the electromechanical microphone device.
摘要:
This disclosure provides systems, methods and apparatus for microspeaker devices. In one aspect, a microspeaker element may include a deformable dielectric membrane that spans a speaker cavity. The deformable dielectric membrane can include a piezoactuator and a dielectric layer. Upon application of a driving signal to the piezoactuator, the dielectric layer can deflect, producing sound. In some implementations, an array of microspeaker elements can be encapsulated between a glass substrate and a cover glass. Sound generated by the microspeaker elements can be emitted through a speaker grill formed in the cover glass.
摘要:
This disclosure provides systems, methods and apparatus for glass packaging of integrated circuit (IC) and electromechanical systems (EMS) devices. In one aspect, fabricating a glass package includes joining a cover glass panel to a glass substrate panel, and singulating the joined panels to form individual glass packages, each including one or more encapsulated devices and one or more signal transmission pathways. In another aspect, a glass package may include a glass substrate, a cover glass and one or more devices encapsulated between the glass substrate and the cover glass.
摘要:
This disclosure provides systems, methods and apparatus for glass packaging of integrated circuit (IC) and electromechanical systems (EMS) devices. In one aspect, a glass package may include a glass substrate, a cover glass, one or more devices encapsulated between the glass substrate and the cover glass, and bond pads configured to attach to a flexible connector and in electrical communication with an encapsulated device. In some implementations, a flexible connector may be used to electrically connect a device within the glass package to an electrical component, such as an integrated circuit (IC) device or PCB, outside the glass package.
摘要:
This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for making and using accelerometers. Some such accelerometers include a substrate, a first plurality of electrodes, a second plurality of electrodes, a first anchor attached to the substrate, a frame and a proof mass. The substrate may extend substantially in a first plane. The proof mass may be attached to the frame, may extend substantially in a second plane and may be substantially constrained for motion along first and second axes. The frame may be attached to the first anchor, may extend substantially in a second plane and may be substantially constrained for motion along the second axis. A lateral movement of the proof mass in response to an applied lateral acceleration along the first or second axes may result in a change in capacitance at the first or second plurality of electrodes.