JP4977198B2 - 電子マイクロ流体素子のシステム・イン・パッケージプラットフォーム - Google Patents
電子マイクロ流体素子のシステム・イン・パッケージプラットフォーム Download PDFInfo
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- UMIVXZPTRXBADB-UHFFFAOYSA-N benzocyclobutene Chemical compound C1=CC=C2CCC2=C1 UMIVXZPTRXBADB-UHFFFAOYSA-N 0.000 claims description 31
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
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- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 description 2
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- QEMXHQIAXOOASZ-UHFFFAOYSA-N tetramethylammonium Chemical compound C[N+](C)(C)C QEMXHQIAXOOASZ-UHFFFAOYSA-N 0.000 description 1
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Description
第1支持体上に設けられた半導体基板、
該半導体基板上に設けられた電子回路、
前記第1支持体の方向を向く第1半導体基板面上に備えられ、前記電子回路と接続し、かつ前記電子回路及び外部通信チャネルと入出力信号のやり取りをするように備えられている信号インターフェース構造、並びに
前記半導体基板内のマイクロ流体構造であって、流体を閉じこめるように備えられ、及び、前記第1半導体基板面に対向してかつ前記第1支持体の反対を向く第2半導体基板面上に存在する当該マイクロ流体構造に対してのみ前記流体が流入出可能となるように備えられているマイクロ流体構造、
を有する。
-以降において多数の各独立した電子マイクロ流体素子に分離するため、多数の電子回路及び信号インターフェース構造を第1ウエハ面上に有する半導体ウエハを製造する工程、
-前記半導体ウエハを第1支持体上に設ける工程であって、前記第1ウエハ面が前記第1支持体の方向を向いている、工程、
-前記第1ウエハ面に対向する第2ウエハ面から前記半導体ウエハを薄くする工程、
-前記第2ウエハ面から前記半導体ウエハ中に複数のマイクロ流体構造を作製する工程、及び
-前記ウエハをダイシングする工程、
を有する。
-前記第2支持板上にベンゾシクロブテン(BCB)層を堆積する工程、
-前記第2ウエハ面上に前記第2支持板を設けることで、積層基板を形成する工程、
-最初に前記積層基板を170℃から200℃未満の温度にまで加熱し、その後前記積層基板を200℃の温度に加熱することによって前記BCB層を硬化する工程、
を有する。
-前記ウエハ上の各電子マイクロ流体素子について、T字形状の内部コンタクト素子の基板部分を形成する工程であって、前記基板部分は、T字の縦棒に対応し、かつ各対応する前記電子マイクロ流体素子の電子回路と接続する、工程
-前記第1支持体及び半導体ウエハ中に切り込みを形成することで、各電子マイクロ流体素子の傾斜面を画定する工程、
-前記傾斜面上にリードを形成することで、T字の横棒に対応する前記T字形状の内部コンタクト素子の側面部分を完成させる工程、及び
-外部素子に対して電気的接続を行うために外部コンタクト素子を形成する工程、
を有する。
-前記ウエハ上にポリマー層を形成する工程、
-前記ポリマー層上にリフトオフ層を形成する工程、及び
-前記リフトオフ層上に暫定的支持体を設ける工程、
を有する。
Claims (15)
- 第1支持体上に設けられた半導体基板;
該半導体基板の第1半導体基板面上に設けられた電子回路;
前記第1半導体基板面上に備えられ、前記電子回路からの電気信号を受信するように備えられ、かつ少なくとも1つのT字形状の内部コンタクト素子を有する、外部素子に対する信号インターフェース構造であって、
該内部コンタクト素子は、前記半導体基板上に備えられ、かつ前記電子回路と接続する、Tの縦棒に対応する基板部分に対応する基板部分、及び、前記基板の傾斜側面上に備えられ、かつ外部コンタクト素子と接続する絶縁リードを形成する、Tの横棒に対応する側面部分、を有し、
前記外部コンタクト素子は、外部素子に対する電気コンタクトを確立するように備えられている、信号インターフェース構造;
前記半導体基板内に形成されるマイクロ流体構造であって、流体を閉じこめるように備えられ、及び、前記第1半導体基板面に対向してかつ前記第1支持体の反対を向く第2半導体基板面上に存在する当該マイクロ流体構造に対してのみ前記流体が流入出可能となるように備えられているマイクロ流体構造;並びに
前記マイクロ流体構造に対する前記流体の流入出を可能にする開口部を有する、前記第2半導体基板面上に存在する第2支持体;
を有する集積電子マイクロ流体素子。 - 前記T字形状の内部コンタクト素子が前記半導体基板に隣接するように備えられ、
前記半導体基板は第1絶縁溝を有し、
該第1絶縁溝は、該第1絶縁溝の一の面に対向する面上に存在する半導体基板部分から、前記第1絶縁溝の一の面上に存在する前記T字形状の内部コンタクト素子の側面部分を分離するように備えられている、
請求項1に記載の集積電子マイクロ流体素子。 - 前記第1支持板のみ又は前記第1支持板と前記第2支持板の両方が断熱性であり、
前記マイクロ流体構造が前記半導体基板中の第1断熱溝によって取り囲まれ、
前記第1断熱溝は前記第2半導体基板側に対して開いていて、かつ
前記第1断熱溝は、断熱材料で満たされているか又は少なくとも部分的に空である、
請求項1に記載の集積電子マイクロ流体素子。 - 前記第1断熱溝は、前記第2半導体基板面から前記半導体基板を突き抜けて延在し、かつ前記半導体基板上に備えられる断熱層によって前記第1基板面上で覆われる、請求項3に記載の集積電子マイクロ流体素子。
- 前記マイクロ流体構造が、前記半導体基板中の第1凹部によって形成され、かつ凹部壁によって閉じこめられている反応チャンバを有し、かつ
前記凹部壁は第2断熱溝によって取り囲まれる、
請求項1に記載の集積電子マイクロ流体素子。 - 前記マイクロ流体構造は電気泳動ポンプを有し、
該電気泳動ポンプは、前記半導体基板中に備えられる第2凹部、及び、凹部壁によって形成され、かつ隣接する第2絶縁溝によって前記半導体基板から絶縁されている2つのフィールドプレートを有する、
請求項1に記載の集積電子マイクロ流体素子。 - 前記電子回路がフォトダイオードを有し、
該フォトダイオードは、半導体基板中のマイクロ流体チャネルの形態をとるマイクロ流体構造に直接隣接する状態で備えられる、
請求項1に記載の集積電子マイクロ流体素子。 - 前記電子回路は前記第1半導体基板面上に2つのコンタクト素子を有し、
該2つのコンタクト素子は、前記半導体基板中の第3凹部の形態をとるマイクロ流体構造にまで延在し、
前記2つのコンタクト素子は、当該素子の動作中に前記第3凹部内の流体への直接ガルバニックコンタクトを確立するように備えられている、
請求項1に記載の集積電子マイクロ流体素子。 - ベンゾシクロブテン(BCB)の接合層が前記第2支持板と前記半導体基板との間に備えられている、請求項1に記載の集積電子マイクロ流体素子。
- 前記第2支持板内の開口部は、取り外し可能な蓋を保持するように備えられている、請求項1に記載の集積電子マイクロ流体素子。
- 前記信号インターフェース構造が、高周波スペクトルでの電磁波信号の送受信を行うように備えられているアンテナを有する、請求項1に記載の集積電子マイクロ流体素子。
- 電子回路及びマイクロ流体構造を有する集積電子マイクロ流体素子の作製方法であって:
以降において多数の各独立した電子マイクロ流体素子に分離するため、多数の電子回路及び信号インターフェース構造を第1ウエハ面上に有する半導体ウエハを製造する工程;
前記半導体ウエハを第1支持体上に設ける工程であって、前記第1ウエハ面は前記第1支持体の方向を向いている、工程;
前記第1ウエハ面に対向する第2ウエハ面から前記半導体ウエハを薄くする工程;
前記第2ウエハ面から前記半導体ウエハ中に複数のマイクロ流体構造を作製する工程;
前記半導体ウエハをダイシングする工程;
前記半導体ウエハの前記第2ウエハ面上に第2支持板を設ける工程;
前記第2支持板内に、各対応するマイクロ流体構造とやり取りをする少なくとも1つの開口部を供する工程;
前記ウエハ上の各電子マイクロ流体素子について、T字形状の内部コンタクト素子の基板部分を形成する工程であって、前記基板部分は、T字の縦棒に対応し、かつ各対応する前記の電子マイクロ流体素子の電子回路と接続する、工程;
前記第1支持体及び前記半導体ウエハ中に切り込みを形成することで、各電子マイクロ流体素子の傾斜面を画定する工程;
前記傾斜面上にリードを形成する工程によって、T字の横棒に対応する前記T字形状の内部コンタクト素子の側面部分を完成させる工程;並びに
外部素子に対して電気的接続を行うために外部コンタクト素子を形成する工程;
を有する方法。 - 前記第2支持板を設ける工程が:
前記第2支持板上にベンゾシクロブテン(BCB)接合層を堆積する工程;
前記第2ウエハ面上に前記第2支持板を設けることで積層基板を形成する工程;及び
前記積層基板を170℃から200℃未満の間の温度にまで加熱し、その後前記積層基板を200℃の温度にまで加熱することによって前記BCB層を硬化させる工程;
を有する、
請求項12に記載の方法。 - 前記の傾斜面上にリードを形成する工程は前記半導体基板に隣接する前記T字形状の内部コンタクト素子の側面部分を形成する工程を有し、かつ
第1絶縁溝を形成して半導体基板部分から前記T字形状の内部コンタクト素子の側面部分を分離する工程が、多数のマイクロ流体構造を形成する工程と共に行われる、
請求項12に記載の方法。 - 前記の半導体ウエハを第1支持体上に設ける工程が:
前記半導体ウエハ上にポリマー層を形成する工程;
前記ポリマー層上にリフトオフ層を形成する工程;
前記リフトオフ層上に暫定的支持体を設ける工程;
を有し、
前記暫定的支持体は、以降の処理中に前記リフトオフ層を除去することによってリフトオフされる、
請求項12に記載の方法。
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