JP6882280B2 - 音響共振器装置、ならびに気密性および表面機能化を提供する製造方法 - Google Patents
音響共振器装置、ならびに気密性および表面機能化を提供する製造方法 Download PDFInfo
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Description
本願は2015年11月6日に出願された米国仮特許出願第62/252,402号に対する優先権を主張し、この開示はその全体が参照により本明細書に組み込まれる。本明細書に開示する主題は2016年10月26日にそれぞれ出願されたか、出願されることになっている3つの米国特許出願、すなわち(1)「Acoustic Resonator Devices and Methods Providing Patterned Functionalization Areas」という名称の米国特許出願第 号、(2)「Acoustic Resonator Devices and Methods with Noble Metal Layer for Functionalization」という名称の米国特許出願第 号、および(3)「Acoustic Resonator Device with Controlled Placement of Functionalization Material」という名称の米国特許出願第 号にも関する。上記3つの米国特許の内容は本明細書に完全に記載した場合と同様に参照により本明細書に組み込まれる。
Claims (20)
- 微小電気機械システム(MEMS)共振器装置であって、
基板;
前記基板の少なくとも一部の上に配置され、少なくとも1つの上面電極を含むバルク音波共振器構造体;
前記少なくとも1つの上面電極の少なくとも一部の上に配置され、0.1(g/m2/日)以下の水蒸気透過率を有する誘電材料を含む気密性層;
前記気密性層の少なくとも一部の上に配置された界面層;および
前記界面層の少なくとも一部の上に配置された少なくとも1種類の特異的又は非特異的結合材料
を含み、
ここで前記バルク音波共振器構造体は前記少なくとも1つの上面電極の下に少なくとも1つの活性領域を含み、前記気密性層、前記界面層、および前記少なくとも1種類の特異的又は非特異的結合材料のそれぞれの少なくとも一部は、前記少なくとも1つの活性領域の上に配置される、MEMS共振器装置。 - 前記界面層と前記少なくとも1種類の特異的又は非特異的結合材料の間に配置された自己組織化単層をさらに含む、請求項1に記載のMEMS共振器装置。
- 前記界面層は水酸化酸化物表面を含み、前記自己組織化単層はオルガノシラン材料を含む、請求項2に記載のMEMS共振器装置。
- 前記界面層は金または金以外の貴金属を含み、前記自己組織化単層はチオール材料を含む、請求項2に記載のMEMS共振器装置。
- 前記気密性層は酸化物、窒化物、またはオキシ窒化物の材料を含む、請求項1に記載のMEMS共振器装置。
- 前記界面層はSiO2、TiO2、Ta2O5、HfO2、およびAl2O3の少なくとも1種類を含む、請求項1に記載のMEMS共振器装置。
- 前記少なくとも1つの上面電極は非貴金属を含む、請求項1に記載のMEMS共振器装置。
- 前記気密性層の厚さは5nm〜150nmの範囲であり、前記界面層の厚さは5nm〜15nmの範囲である、請求項1に記載のMEMS共振器装置。
- 前記バルク音波共振器構造体は、前記基板の一面の法線に対して主に非平行の配向分布を有するC軸を含む六方晶構造の圧電材料を含む、請求項1に記載のMEMS共振器装置。
- 前記基板と前記バルク音波共振器構造体の間に配置された音響反射構造体をさらに含み、ここで前記バルク音波共振器構造体はソリッドマウントバルク音波共振器(solidly mounted bulk acoustic wave resonator)構造体を含む、請求項1に記載のMEMS共振器装置。
- 前記基板は窪みを規定し、支持層が前記バルク音波共振器構造体と前記窪みの間に提供され、前記少なくとも1つの活性領域は前記支持層の少なくとも一部と前記窪みの少なくとも一部の上に配置される、請求項1に記載のMEMS共振器装置。
- 請求項1に記載のMEMS共振器装置を含むセンサー。
- 請求項1に記載のMEMS共振器装置と、液体を導いて前記少なくとも1種類の特異的又は非特異的結合材料に接触させるよう配置された流路とを含む、流体装置。
- 生物学的検知または化学的検知の方法であって、前記方法が:
請求項13に記載の流体装置の前記流路に、標的種を含む流体を供給する工程であって、ここで前記供給する工程は、前記標的種のうちの少なくとも一部が前記少なくとも1種類の特異的又は非特異的結合材料に結合するよう構成されている、工程;、
前記少なくとも1つの活性領域にバルク音波を誘導する工程;ならびに
前記バルク音波共振器構造体の周波数特性、振幅特性、または位相特性の少なくとも1種類の変化を検知して、前記少なくとも1種類の特異的又は非特異的結合材料に結合した標的種の存在または量の少なくとも1つを示す工程、
を含む、方法。 - 微小電気機械システム(MEMS)共振器装置を製造する方法であって、前記方法は:
基板の少なくとも一部の上に配置された圧電材料の少なくとも一部の上に少なくとも1つの上面電極を形成する工程;
前記少なくとも1つの上面電極の少なくとも一部の上に気密性層を堆積する工程であって、前記気密性層は0.1(g/m2/日)以下の水蒸気透過率を含む誘電材料を含む、工程;
前記気密性層の少なくとも一部の上に界面層を堆積する工程;および
前記界面層の少なくとも一部の上に少なくとも1種類の特異的又は非特異的結合材料を堆積する工程
を含み、
ここで前記微小電気機械システム(MEMS)共振器装置は前記少なくとも1つの上面電極の下に少なくとも1つの活性領域を含み、前記気密性層、前記界面層、および前記少なくとも1種類の特異的又は非特異的結合材料のそれぞれの少なくとも一部は前記少なくとも1つの活性領域の上に配置される、方法。 - 前記気密性層を堆積する工程は原子層堆積を含み、前記界面層を堆積する工程は化学蒸着、原子層堆積、または物理蒸着の少なくとも1つを含む、請求項15に記載の方法。
- 前記界面層を堆積する工程は前記気密性層を堆積する工程の後に真空環境で順次行われる、請求項15に記載の方法。
- 前記少なくとも1種類の特異的又は非特異的結合材料を堆積する工程の前に、前記界面層の少なくとも一部の上に自己組織化単層を形成する工程をさらに含む、請求項15に記載の方法。
- 前記少なくとも1種類の特異的又は非特異的結合材料と一致しない前記自己組織化単層の一部の上にブロッキング材を堆積する工程をさらに含む、請求項18に記載の方法。
- 前記界面層の一部の上に少なくとも1つの壁を形成して、流路を規定する工程をさらに含む、請求項15に記載の方法。
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