Abstract: An element is arranged to cooperate with another part so as to form an encapsulation device for a component including the element at least partially coated with a metallization. The metallization includes at least one metal layer protected by an intermetallic compound which is coated by a non-diffused portion of a material whose melting point is lower than 250° C. A method of fabricating the encapsulation device is also disclosed.

Abstract: The piezoelectric resonator (21) includes a first and a second planar tuning fork shaped part arranged in a common plane. It is intended to be mounted on a support via a linking part (29), the linking part being arranged to connect the tips of the inner vibrating arms (25a, 25b) of the first and second tuning fork shaped parts so as to link the first and second tuning fork shaped parts together, The electrodes carried by the first and second tuning fork shaped parts are interconnected through the linking part so as to make the outer vibrating arms of the first and second tuning fork shaped part oscillate with opposite phase.

Abstract: The temperature compensated timing signal generator comprises a crystal oscillator that generates a reference time signal, and a divider circuit that receives the reference time signal as input and outputs a coarse time unit signal, the coarse time unit signal having an actual frequency deviating from a desired frequency as a function of temperature of the crystal oscillator. The signal generator also includes a high frequency oscillator configured to generate an interpolation signal having a frequency greater than the frequency of the crystal oscillator. A finite state machine computes a deviation compensating signal as a function of temperature, the signal comprises an integer part representative of an integer number of pulses to be inhibited or injected in the divider circuit and a fractional part representative of how much the output of a new time unit signal pulse should further be delayed to compensate for any remaining deviation.

Abstract: The temperature compensated timing signal generator comprises a crystal oscillator that generates a reference time signal, and a divider circuit that receives the reference time signal as input and outputs a coarse time unit signal, the coarse time unit signal having an actual frequency deviating from a desired frequency as a function of temperature of the crystal oscillator. The signal generator also includes a high frequency oscillator that generates an interpolation signal having a frequency greater than the frequency of the crystal oscillator. A finite state machine computes a deviation compensating signal as a function of the temperature signal, the signal comprises an integer part representative of an integer number of pulses to be inhibited or injected in the divider circuit and a fractional part representative of how much the output of a new time unit signal pulse should further be delayed to compensate for any remaining deviation.

Abstract: The piezoelectric resonator (21) includes a first and a second planar tuning fork shaped part arranged in a common plane. It is intended to be mounted on a support via a linking part (29), the linking part being arranged to connect the tips of the inner vibrating arms (25a, 25b) of the first and second tuning fork shaped parts so as to link the first and second tuning fork shaped parts together, The electrodes carried by the first and second tuning fork shaped parts are interconnected through the linking part so as to make the outer vibrating arms of the first and second tuning fork shaped part oscillate with opposite phase.

Abstract: The invention concerns a method for mounting a piezoelectric resonator (40) inside a case (80) by ultrasonic bonding of the piezoelectric resonator to a base part of the case. The invention also concerns a small-sized packaged piezoelectric resonator, in which the piezoelectric resonator is ultrasonically bonded inside a base part of the package.

Abstract: The crystal oscillator device includes an air-tight case (1) forming a vacuum chamber (23), a piezoelectric resonator element (11), oscillation circuitry, a temperature sensor, and a heating unit implemented in an integrated-circuit (IC) chip (13) with an active surface (13a). The piezoelectric resonator element (11) and the oscillation circuitry are connected together to form an oscillation circuit. Furthermore, the temperature sensor and the heating unit are enclosed in the vacuum chamber (23) with the piezoelectric resonator element (11). The piezoelectric resonator element is attached in a heat conductive manner to the active surface (13a) of the integrated-circuit chip (13) in such a way that the IC chip provides mechanical support for the piezoelectric resonator element.

Abstract: A cutting tool in the form of a drill bit or end-milling tool has an elongated body formed with at least one cutting edge defined by a flank of a flute running primarily along a rotation axis of the body and having leading and trailing flanks one of which is formed with wavelike and spaced projections and recesses. The depth of these grooves and, hence, the height of the projections increases toward the end cutting edge to break up chips.