Temperature-compensated crystal oscillator

Details Temperature-compensated crystal oscillator Temperature-compensated crystal oscillator

2007-07-10

2007-07-10

Kinkead, Arnold (Department: 2817)

Oscillators

With outer casing or housing

C331S066000, C331S158000, C331S10800D, C257S698000, C257S690000, C438S106000, C438S107000

Reexamination Certificate

active

11474565

ABSTRACT:
An inventive temperature-compensated crystal oscillator has a construction such that a crystal oscillator element (5) is accommodated in a container (1) and an IC element (7) for controlling an oscillation output on the basis of the oscillation of the crystal oscillator element (5) is mounted on a lower surface of the container (1). A plurality of electrode pads (10) at least including plural crystal electrode pads connected to the crystal oscillator element (5), plural writing control electrode pads, and an oscillation output electrode pad, a ground electrode pad, a power source voltage electrode pad and an oscillation control electrode pad connected to surface mounting external terminals are arranged in a matrix configuration of m rows×n columns (wherein m and n are natural numbers not smaller than 2) in an IC element mounting area. The IC element (7) is electrically connected to the electrode pads (10). The temperature-compensated crystal oscillator is excellent in IC element bonding reliability, and meets the need for the size reduction of the entire structure.

REFERENCES:
patent: 6229404 (2001-05-01), Hatanaka
patent: 6667664 (2003-12-01), Akagawa et al.
patent: 6778029 (2004-08-01), Mizusawa
patent: 2000-278047 (2000-10-01), None
patent: 2001-291742 (2001-10-01), None
patent: 2002-198740 (2002-07-01), None

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