JP5873094B2 - 入射放射線検出器パッケージング - Google Patents
入射放射線検出器パッケージング Download PDFInfo
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- JP5873094B2 JP5873094B2 JP2013535076A JP2013535076A JP5873094B2 JP 5873094 B2 JP5873094 B2 JP 5873094B2 JP 2013535076 A JP2013535076 A JP 2013535076A JP 2013535076 A JP2013535076 A JP 2013535076A JP 5873094 B2 JP5873094 B2 JP 5873094B2
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Description
Claims (19)
- 入射放射線検出器をパッケージングする方法であって、
検出器ウェハを形成する工程であり:
検出器基板上に複数の検出器アレイを形成する工程であり、各検出器アレイが複数の個々の検出器を有する、工程;
前記検出器基板上に複数の基準検出器アレイを形成する工程であり、前記複数の検出器アレイの各々に少なくとも1つの基準検出器アレイが付随する、工程;及び
前記検出器基板上に複数の検出器シールリングを形成する工程であり、各検出器シールリングが少なくとも1つの検出器アレイと少なくとも1つの基準検出器アレイとを囲む、工程;
を有する、検出器ウェハを形成する工程と、
蓋ウェハを形成する工程であり:
蓋基板の第1表面に不透明材料を堆積する工程;
前記不透明材料内に複数のウィンドウを形成する工程;
前記蓋基板内に複数のキャビティを形成する工程;及び
前記不透明材料内に部分的に形成された複数の蓋シールリングを形成する工程であり、前記不透明材料は、前記複数の蓋シールリングの各蓋シールリングの少なくとも1つの層を有し、各蓋シールリングが前記不透明材料内の少なくとも1つのウィンドウを囲む、工程;
を有する、蓋ウェハを形成する工程と、
前記複数の検出器シールリングと前記複数の蓋シールリングとのうちの少なくとも一方に接合剤を塗布する工程と、
前記複数の検出器シールリングを前記複数の蓋シールリングとアライメントする工程と、
接合剤を用いて前記蓋ウェハ及び前記検出器ウェハを共に接合する工程であり、前記不透明材料は、前記接合剤が接着しない材料を有する、工程と、
を有する方法。 - 前記不透明材料内の前記複数のウィンドウの各々の第1の寸法及び第2の寸法は、前記蓋基板内の前記複数のキャビティの各キャビティの第1の寸法及び第2の寸法と同等である、請求項1に記載の方法。
- 前記接合剤ははんだを有する、請求項1に記載の方法。
- 前記不透明材料はチタン−タングステンを有する、請求項1に記載の方法。
- 入射放射線検出器をパッケージングする方法であって、
少なくとも1つの検出器を覆うように構成された透明な蓋基板の第1表面に、不透明材料を堆積する工程と、
前記蓋基板内に少なくとも1つのキャビティを形成する工程と、
前記不透明材料内に部分的に形成された少なくとも1つの気密シールリングの第1部分を形成する工程であり、前記不透明材料は、前記少なくとも1つの気密シールリングの少なくとも1つの層を有し、前記少なくとも1つの気密シールリングの該第1部分が、前記蓋基板内の対応するキャビティの周囲を囲む、工程と、
前記少なくとも1つの気密シールリングの前記第1部分を、前記少なくとも1つの気密シールリングの第2部分とアライメントする工程であり、前記少なくとも1つの気密シールリングの前記第2部分は、前記少なくとも1つの検出器を有する基板に結合されている、工程と、
はんだを用いて、前記少なくとも1つの気密シールリングの前記第1部分を、前記少なくとも1つの気密シールリングの前記第2部分と接合する工程であり、前記不透明材料は、前記はんだが濡れ広がらない材料を有する、工程と、
を有する方法。 - 当該方法は更に、前記不透明材料内に少なくとも1つのウィンドウを形成する工程を有し、前記ウィンドウは、各検出器に対応する前記不透明材料の部分を除去したものであり、前記不透明材料の残部が、各検出器に付随する少なくとも1つの基準検出器を覆う、請求項5に記載の方法。
- 前記蓋基板内に前記キャビティを形成する工程は、
フォトレジストマスクを設け、
前記フォトレジストマスクに基づいて、前記不透明材料内にウィンドウを形成し、
前記フォトレジストマスクに基づいて、前記蓋基板内に前記キャビティを形成し、且つ
前記フォトレジストマスクを除去する
ことを有する、請求項5に記載の方法。 - 前記キャビティは、検出器を覆うように構成された前記透明な蓋基板の第1表面に前記不透明材料を堆積する工程の前に、前記蓋基板内に形成される、請求項5に記載の方法。
- 前記透明な蓋基板の第1表面に前記不透明材料を堆積する工程は、前記透明な蓋基板の第1表面に、チタン−タングステンを有する不透明材料を堆積することを有する、請求項5に記載の方法。
- 前記検出器はマイクロボロメータ検出器のアレイを有する、請求項5に記載の方法。
- 前記少なくとも1つの気密シールリングの前記第1部分を形成する工程は、少なくとも二層の金属を堆積することを有し、該二層のうちの少なくとも一方は金を有する、請求項5に記載の方法。
- パッケージングされた入射放射線検出器であって、
検出器と少なくとも1つの基準検出器とを覆う透明なシリコン層と、
前記シリコン層に結合され且つ前記少なくとも1つの基準検出器を覆う不透明層であり、前記検出器を露出させる開口を含んだ不透明層と、
前記不透明層内に部分的に形成され且つ前記不透明層に結合された蓋シールリングであり、前記不透明層が該蓋シールリングの少なくとも1つの層を有する、蓋シールリングと、
前記検出器と前記少なくとも1つの基準検出器とを有する検出器基板と、
前記検出器基板に結合された検出器シールリングと、
前記蓋シールリングと前記検出器シールリングとを共に接合するように構成された接合層であり、前記不透明層の材料に接着しない接合剤を有する接合層と、
を有するパッケージングされた入射放射線検出器。 - 前記透明なシリコン層内のキャビティであり、前記検出器とアライメントされるように前記シリコン層内に位置付けられたキャビティと、
前記不透明層内のウィンドウであり、前記シリコン層内の前記キャビティとアライメントされて、前記検出器を露出させるように構成されたウィンドウと、
を更に有する請求項12に記載のパッケージングされた入射放射線検出器。 - 前記不透明層内に形成された複数の点検窓を更に有する請求項12に記載のパッケージングされた入射放射線検出器。
- 前記透明なシリコン層内の前記キャビティ及び前記不透明層内の前記ウィンドウは、少なくとも2つの同等な寸法を有する、請求項13に記載のパッケージングされた入射放射線検出器。
- 前記接合剤は、前記不透明層の前記材料に濡れ広がらないはんだを有する、請求項12に記載のパッケージングされた入射放射線検出器。
- 前記不透明層の前記材料はチタン−タングステンを有する、請求項12に記載のパッケージングされた入射放射線検出器。
- 前記検出器はマイクロボロメータ検出器のアレイを有する、請求項12に記載のパッケージングされた入射放射線検出器。
- 前記蓋シールリングは少なくとも二層の金属を有し、該二層のうちの少なくとも一方は金を有し、且つ
前記検出器シールリングは少なくとも二層の金属を有し、該二層のうちの少なくとも一方は金を有する、
請求項12に記載のパッケージングされた入射放射線検出器。
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Free format text: JAPANESE INTERMEDIATE CODE: R250 |