MULTIMETER-WAVE ACOUSTIC RESONATORS

    公开(公告)号:US20250062738A1

    公开(公告)日:2025-02-20

    申请号:US18807407

    申请日:2024-08-16

    Abstract: Exemplary multimeter-wave acoustic resonators and methods employing intermediate layers in the fabricating of piezoelectric devices based on thin-film lithium niobate/lithium tantalate or aluminum nitride/scandium aluminum nitride on a substrate in a film stack that can use higher order first and third antisymmetric bulk acoustic tones. In some embodiments, the acoustic resonator comprises a base substrate of a material with low electromagnetic loss, a piezoelectric film layer that is suspended over the base substrate, and an interdigitated electrode (IDE) array formed by a pair of independently addressable microelectrode arrays disposed on a top surface of the piezoelectric film layer to resonantly vibrate at a range of frequencies greater than 6 GHz. The piezoelectric film layer was formed over an intermediate or sacrificial layer positioned between the base substrate and the piezoelectric film layer and then etched to provide the piezoelectric film layer suspended over the base substrate.

    Methods for detecting an increased risk for coronary heart disease

    公开(公告)号:US12227806B2

    公开(公告)日:2025-02-18

    申请号:US17472740

    申请日:2021-09-13

    Abstract: The invention relates generally to an allele on human chromosome 9 associated with increased risk for coronary heart disease and the use or detection of such an allele in determining whether a human has an increased risk for coronary heart disease. In one aspect, the invention relates to methods for detecting a predisposition or propensity or susceptibility for coronary heart disease in a human, comprising detecting the presence of an allele on human chromosome 9 that is associated with an increased risk for coronary heart disease in a human. Disclosed are methods and compositions for determining whether a person carries an allele associated with increased risk for coronary atherosclerosis by determining whether the person has an RA-CHR9 allele, such as by determining whether the person has an RA-CHR9 allele-associated single nucleotide polymorphism (SNP). The invention also relates to kits for detecting the presence of an allele on chromosome 9 associated with an increased risk for coronary heart disease.

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