US 11,817,825 B2
Oscillator
Kensaku Isohata, Minowa-machi (JP)
Assigned to SEIKO EPSON CORPORATION, Tokyo (JP)
Filed by SEIKO EPSON CORPORATION, Tokyo (JP)
Filed on Aug. 24, 2022, as Appl. No. 17/894,505.
Claims priority of application No. 2021-137812 (JP), filed on Aug. 26, 2021.
Prior Publication US 2023/0065998 A1, Mar. 2, 2023
Int. Cl. H03B 5/32 (2006.01); H03B 5/04 (2006.01); H03L 7/197 (2006.01); H03L 7/099 (2006.01)
CPC H03B 5/32 (2013.01) [H03B 5/04 (2013.01); H03L 7/099 (2013.01); H03L 7/1974 (2013.01); H03B 2200/0018 (2013.01); H03B 2200/0088 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An oscillator comprising:
a first resonator element;
a circuit element configured to oscillate the first resonator element to generate an oscillation signal;
a first package which includes a substrate, and has a housing space configured to house the first resonator element and the circuit element at one principal surface of the substrate;
a second resonator element which is disposed at another principal surface of the substrate, and an oscillation frequency of which is controlled based on the oscillation signal;
a leg part which is disposed at the another principal surface of the substrate, and which is arranged so as to surround the second resonator element in a plan view of the substrate;
an external terminal disposed on a top surface of the leg part; and
an interconnection which is arranged inside the leg part, and which is electrically coupled to the external terminal.