JP4299126B2 - 構成素子を気密封止するための方法 - Google Patents
構成素子を気密封止するための方法 Download PDFInfo
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- JP4299126B2 JP4299126B2 JP2003517934A JP2003517934A JP4299126B2 JP 4299126 B2 JP4299126 B2 JP 4299126B2 JP 2003517934 A JP2003517934 A JP 2003517934A JP 2003517934 A JP2003517934 A JP 2003517934A JP 4299126 B2 JP4299126 B2 JP 4299126B2
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Description
Claims (19)
- 電子構成素子のための気密封止部を形成するための方法において、以下のステップ:
a)チップ(1)に構築された構成素子を、電気的な接続面(7)を有する支持板(4)に、チップ(1)の、構成素子構造体(2)を支持している表側が支持板(4)に向けられかつ固定後に支持板(4)に対して僅かな隙間を置いて配置されるように固定しかつ電気的にコンタクティングし;
b)チップの裏側をプラスチックから成るフィルム(8)で、該フィルム(8)の縁部がチップ(1)にオーバラップするように覆い;
c)前記フィルム(8)を縁範囲(13)全体でチップ(1)を完全に巡るように支持板(4)と密に結合し;
d)支持板(4)との密な結合の後に、フィルムの一部を以下の範囲A)およびB);
A)縁範囲(13)の外側でチップを取り囲むストリップ状の範囲、ただしストリップはチップを巡って環状に閉じられており、
B)チップの側壁に沿ってチップを取り囲む範囲
で除去することによってフィルム(8)を構造化し;
e)前記フィルム(8)にわたって気密シール性の層(14)を、該気密シール性の層(14)が前記縁範囲(13)の外側のコンタクト範囲で支持板(4)と気密に閉じ合わされるように被着させる;
を実施することを特徴とする、電子構成素子のための気密封止部を形成するための方法。 - 方法ステップb)およびc)で熱可塑性のフィルム(8)を使用し、該熱可塑性のフィルム(8)を、チップ(1)にオーバラップするように載着させ、かつ圧力および高められた温度下にチップ裏面と支持板(4)とに貼り合わせる、請求項1記載の方法。
- 方法ステップe)でまずベース金属被覆体をフィルム(8)と、支持板(4)の、フィルム(8)を取り囲む表面とに被着させ、引き続きこのベース金属被覆体を無電流で補強しかつ/または電気メッキにより補強する、請求項1または2記載の方法。
- 方法ステップe)でまずベース金属被覆体を無電流でフィルム(8)と、支持板(4)の、フィルム(8)を取り囲む表面とに被着させ、引き続きこのベース金属被覆体を、スパッタリング、蒸着、無電流析出、電気メッキ析出、金属溶融体との接触のステップのうちの少なくとも1つのステップまたはこれらの方法の組合せにより、所要の厚さが得られるまで補強する、請求項1または2記載の方法。
- 方法ステップc)でフィルム(8)を、互いに小さな間隔を置いて前記縁範囲に対して平行に延びる少なくとも2つのストリップ(9)の形でレーザ除去により除去し、この場合、支持板(4)の表面または支持板(4)上に位置する金属被覆体(17)を露出させる、請求項1から4までのいずれか1項記載の方法。
- 前記ストリップ(9)を、フィルム(8)の厚さにほぼ相当する幅および間隔を持って形成する、請求項5記載の方法。
- チップ(1)の裏面に金属被覆体(16)を形成し、気密シール性の層(14)の被着前にフィルム(8)を裏側で前記金属被覆体(16)の範囲で少なくとも部分的に除去する、請求項1から6までのいずれか1項記載の方法。
- 方法ステップb)でフィルム(8)をカーテンコート式のポッティングによって被着させる、請求項1から7までのいずれか1項記載の方法。
- 前記縁範囲(13)の外側で支持板(4)に、気密シール性の層(14)とオーバラップしかつ該気密シール性の層(14)を電気的にコンタクティングする、支持板(4)のアース接続部に接続可能な接続金属被覆体(17)を設ける、請求項1から8までのいずれか1項記載の方法。
- 方法ステップe)の後でプラスチックカバー(18)をまず液体の形で支持板(4)と、チップ(1)の、気密シール性の層(14)により覆われた裏面とに、プラスチックカバー(18)が硬化後にほぼ平坦な表面を形成するように全面的に被着させる、請求項1から9までのいずれか1項記載の方法。
- 表面波構成素子を使用し、かつ直接にチップ(1)の裏面にまたはチップ(1)の裏面の上に位置するフィルム(8)に、体積波を減衰する付加的な層(19)を被着させる、請求項1から10までのいずれか1項記載の方法。
- 気密シール性の層(14)として、SiO2、SiCまたはガラスから選択された無機層を被着させる、請求項1、2、5、6、7、8、9、10または11記載の方法。
- フィルム(8)を構造化するためにフォト構造化を使用する、請求項1から12までのいずれか1項記載の方法。
- 支持板(4)がモジュールであり、該モジュールに別のチップ(1)および/または別の構成素子を上で述べたようにして被着させ、支持板(4)とコンタクティングさせ、かつ方法ステップb)〜e)により封止する、請求項1から13までのいずれか1項記載の方法。
- 方法ステップa)〜e)によって複数のチップ(1)を1つの共通の支持板(4)に取り付け、コンタクティングしかつ封止し、引き続きこれらのチップ(1)の間で前記縁範囲(13)の外側で共通の支持板(4)を分断することによってこれらのチップ(1)を個別化する、請求項1から13までのいずれか1項記載の方法。
- 支持板(4)として、チップ(1)に向けられた側にははんだ付け可能な金属被覆体を備え、かつ裏側にはチップ(1)と導電接続された接続金属被覆体(6)を備えた、特に多層のプレートを使用し、ただし該プレートの基礎材料が酸化アルミニウム、ガラス、HTCC、LTCCまたは有機ポリマから選択されている、請求項1から15までのいずれか1項記載の方法。
- 当該方法を表面波構成素子の封止のために使用する、請求項1から16までのいずれか1項記載の方法。
- 当該方法をセンサの封止のための使用する、請求項1から16までのいずれか1項記載の方法。
- 当該方法を、光学的な、特に少なくとも部分的に光透過性の構成素子の封止のために使用し、この場合、ガラスから成る支持板を使用する、請求項1から16までのいずれか1項記載の方法。
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DE10136743A DE10136743B4 (de) | 2001-07-27 | 2001-07-27 | Verfahren zur hermetischen Verkapselung eines Bauelementes |
PCT/DE2002/002188 WO2003012856A2 (de) | 2001-07-27 | 2002-06-14 | Verfahren zur hermetischen verkapselung eines bauelementes |
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