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公开(公告)号：US11942438B2
公开(公告)日：2024-03-26
申请号：US17176804
申请日：2021-02-16
发明人： Motoi Yamauchi , Masato Ito
CPC分类号： H01L23/562 , H01L23/02 , H01L23/31 , H03H9/0571 , H03H9/0576 , H10N30/88 , H01L23/498 , H01L23/49805 , H01L23/49838
摘要： An electronic component includes a first substrate having a substantially quadrangular planar shape and having a first surface and a second surface, the first surface and the second surface being opposite to each other, an element disposed on the first surface, four first terminals located adjacent to four corners on the second surface, respectively, and a second terminal located between the first terminals at respective ends of each of two sides opposite to each other of the second surface, an area of the second terminal being smaller than an area of each of the first terminals at the respective ends of each of the two sides, a width of the second terminal in an extension direction of each of the two sides being equal to or less than a width of each of the first terminals at the respective ends of each of the two sides in the extension direction.
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公开(公告)号：US11025226B2
公开(公告)日：2021-06-01
申请号：US16537247
申请日：2019-08-09
发明人： Jaeho Jeong , Masato Ito
摘要： A multiplexer includes: a first bandpass filter having a first end coupled to a common terminal and a second end coupled to a first terminal, the first bandpass filter having a first passband; a second bandpass filter having a first end coupled to the common terminal and a second end coupled to a second terminal, the second bandpass filter having a second passband that does not overlap with the first passband and is higher than the first passband; and a first band-stop filter having a first end coupled to the first terminal and a second end coupled to the second terminal, the first band-stop filter having a first stopband formed of a first attenuation pole and a second attenuation pole, the first attenuation pole being located within the first passband or near the first passband, the second attenuation pole being located within the second passband or near the second passband.
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公开(公告)号：US10581405B2
公开(公告)日：2020-03-03
申请号：US15646431
申请日：2017-07-11
发明人： Masato Ito , Yuki Endo , Ryo Miyamoto
摘要： A multiplexer includes: a first filter that includes a piezoelectric thin film resonator and is connected between a common terminal and a first terminal, the piezoelectric thin film resonator being located on a substrate; a second filter that includes an acoustic wave resonator and is connected between the common terminal and a second terminal, the acoustic wave resonator including an IDT located on a piezoelectric substrate; and a capacitor that includes a pair of electrodes facing each other in a planar direction and is coupled to the first filter, the pair of electrodes being located on the piezoelectric substrate.
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公开(公告)号：US09985606B2
公开(公告)日：2018-05-29
申请号：US15338008
申请日：2016-10-28
发明人： Ryo Miyamoto , Masato Ito , Osamu Kawachi
摘要： An acoustic wave filter includes: series resonators connected in series between input and output terminals; and lines connected in parallel to the series resonators, wherein at least one of the lines includes: a first resonator including a piezoelectric substance, and first lower and upper electrodes sandwiching the piezoelectric substance in a c-axis orientation direction of the piezoelectric substance; a second resonator that is connected in series to the first resonator, and includes another piezoelectric substance, and second lower and upper electrodes sandwiching the another piezoelectric substance so that one of the second lower and upper electrodes in the c-axis orientation direction have an electric potential equal to that of one of the first lower and upper electrodes in the c-axis orientation direction; and a capacitor connected in parallel to one of the first and second resonators and not connected in parallel to another one of the first and second resonators.
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