US 12,323,128 B2
Oscillator
Hiroyuki Ishikawa, Kyoto (JP); Takao Kusuki, Kyoto (JP); Masaaki Ota, Kyoto (JP); and Takahiro Ueta, Kyoto (JP)
Assigned to KYOCERA Corporation, Kyoto (JP)
Filed by KYOCERA Corporation, Kyoto (JP)
Filed on Aug. 16, 2023, as Appl. No. 18/450,816.
Application 18/450,816 is a continuation of application No. PCT/JP2022/001329, filed on Jan. 17, 2022.
Claims priority of application No. 2021-030167 (JP), filed on Feb. 26, 2021.
Prior Publication US 2023/0396232 A1, Dec. 7, 2023
Int. Cl. H03H 9/05 (2006.01); H03B 5/04 (2006.01); H03B 5/32 (2006.01); H03H 9/17 (2006.01)
CPC H03H 9/0538 (2013.01) [H03B 5/04 (2013.01); H03B 5/32 (2013.01); H03H 9/17 (2013.01)] 2 Claims
OG exemplary drawing
 
1. An oscillator comprising:
a piezoelectric element that outputs a signal with a predetermined oscillation frequency;
a first package containing the piezoelectric element;
an electronic element that controls the predetermined oscillation frequency by use of voltage; and
a second package containing the electronic element and the first package,
the second package including:
a base in which the electronic element and the first package are mounted, and
a lid that hermetically seals the electronic element and the first package with the base,
wherein the base comprises
a substrate part comprising a first major face and a second major face opposite to the first major face, the first major face being a major face on which the electronic element is mounted,
a first frame part comprising a first frame face on which the first package is mounted, the first frame part being located on a peripheral edge of the first major face, and
a second frame part comprising a second frame face to which the lid is joined, the second frame part being located on a peripheral edge of the first frame face,
wherein the first major face and the first frame face have a difference in level,
wherein the first package is mounted not on the electronic element but on the first frame face,
wherein the electronic element is mounted on the first major face such that the electronic element is partially located in a spare space between the first package and the first major face, and
wherein the piezoelectric element contained in the first package does not entirely cover the electronic element.