Abstract: Touch sensors with one or more piezoelectric elements and devices containing such touch sensors are presented. The touch sensor contains keys that are independently actuated. Contact with a key provides tactile feedback through the piezoelectric element to the user. Each key provides an individual tactile feedback pattern that is dependent on the particular key contacted as well as the function of the key at the time of contact. Actuation of the key provides a different tactile feedback pattern. The piezoelectric element is bonded directly to a printed circuit board, on which electronic components are also mounted.

Abstract: An overmolded electronic assembly (900, 1000, 1200) is fabricated from one or more overmoldable interface components (300, 400, 500, 1220, 1750) that may be electrical contacts or electronic components that have physical interfaces, such as speakers or sensors. The overmoldable interface components have a sacrificial end that is cut off from the remainder of the overmoldable interface components after being overmolded in an electronic assembly, providing a sealed cavity into the overmolded electronic assembly.

Abstract: An integrated patch antenna and electronics assembly (300) comprises an antenna dielectric layer (305), a ground plane layer (310) disposed on a first side of the antenna dielectric layer, a printed circuit dielectric layer (315) disposed on the ground plane layer opposite the antenna dielectric layer, a patterned conductive metal foil layer (320) on a component surface (323) of the assembly (300), and a conductive metal foil antenna patch (325) disposed on a second side of the antenna dielectric layer that is in a patch side (391) of the assembly. In some embodiments, a plated through hole (330) couples the antenna patch to the patterned conductive metal foil layer. In some embodiments, there are one or more printed circuit dielectric layers (316, 341, 346, 351) disposed over the antenna patch on the antenna patch side of the assembly. In some embodiments, pairs of printed circuit dielectric layers ([315, 316], [340, 341], [345, 346], [350, 351]) are formed simultaneously on each side of the assembly.

Abstract: A dielectric sheet (500, 600, 1621) includes a photodielectric support layer (505, 1630) that may be glass reinforced and a dielectric laminate (510, 605). The dielectric laminate includes first and second metal foil layers (415, 660; 210, 665, 1605, 1610), and a dielectric layer (405, 655, 1620) disposed between the first and second metal foil layers. The first metal foil layer is adhered to the photodielectric support layer. In a printed circuit and patch antenna that includes the dielectric sheet, the first metal layer is patterned by removal of metal according to a circuit pattern and the photodielectric support layer is patterned by removal of dielectric material according to the circuit pattern.

Abstract: High quality epitaxial layers of monocrystalline materials (26) can be grown overlying monocrystalline substrates (22) such as large silicon wafers by forming a compliant substrate for growing the monocrystalline layers. An accommodating buffer layer (24) comprises a layer of monocrystalline oxide spaced apart from a silicon wafer by an amorphous interface layer (28) of silicon oxide. The amorphous interface layer dissipates strain and permits the growth of a high quality monocrystalline oxide accommodating buffer layer. Any lattice mismatch between the accommodating buffer layer and the underlying silicon substrate is taken care of by the amorphous interface layer. Some preferred electronic devices are described that use a layer or pattern of a perovskite cuprate (2125, 2305, 2310, 2315, 2405) such as YBa2Cu3O7−y(YBCO) or Y1−xPrxBa2Cu3O7−y(YPBCO, 0<x<1) over a buffer layer (2120) of lanthanum strontium aluminum tantalate (LSAT).