JP4502819B2 - 半導体デバイスの裏面の処理方法 - Google Patents
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- JP4502819B2 JP4502819B2 JP2005000213A JP2005000213A JP4502819B2 JP 4502819 B2 JP4502819 B2 JP 4502819B2 JP 2005000213 A JP2005000213 A JP 2005000213A JP 2005000213 A JP2005000213 A JP 2005000213A JP 4502819 B2 JP4502819 B2 JP 4502819B2
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Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
- H01J37/32366—Localised processing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/28—Testing of electronic circuits, e.g. by signal tracer
- G01R31/2851—Testing of integrated circuits [IC]
- G01R31/2898—Sample preparation, e.g. removing encapsulation, etching
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/32—Polishing; Etching
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2237/00—Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
- H01J2237/30—Electron or ion beam tubes for processing objects
- H01J2237/31—Processing objects on a macro-scale
- H01J2237/3114—Machining
Description
12 MOSFETの裏面
16 破線
20 相互接続プラグまたはビア
23 活性領域
24 浅い注入トレンチ絶縁体接合
26 埋め込み酸化物層
28 基板層
30 開口、窓
40 イオン源
44 不活性イオン・ビーム
44’ 平行イオン(・ビーム)
44” 平行イオン・ビームとガスの組合せ
51 第1コリメータ
52 第2コリメータ
53 第3コリメータ
60 遮蔽板
62 遮蔽板内の開口
66 第2遮蔽板
68 第2開口
70 ミリングされたMOSFETの表面
75’ 磁石
80 ガス源
85 ガス
90 温度制御された回転/傾斜ステージ
100 処理チャンバ
Claims (14)
- 半導体デバイスの裏面の処理方法であって、
回転および傾斜用ステージを有する処理チャンバを準備するステップと、
基板層を裏面に有する半導体デバイスを準備するステップであって、前記半導体デバイスは前記裏面を上にした配置において前記基板層の上に絶縁体層を有し、前記絶縁体層は内部に前記半導体デバイスを構成する複数の構造体を含むステップと、
前記処理チャンバ内の前記回転および傾斜用ステージ上に前記半導体デバイスを、前記裏面を上にして載置するステップと、
前記処理チャンバ内で前記半導体デバイスの前記裏面の前記基板層内に延びる凹部を形成するステップと、
前記処理チャンバ内で100eV乃至650eVの範囲のエネルギーを有する平行イオンプラズマを発生させるステップと、
前記処理チャンバ内で、前記平行イオンプラズマと前記半導体デバイスの間に開口を有する遮蔽板を設けるステップと、
前記平行イオンプラズマを、前記処理チャンバ内の前記遮蔽板の前記開口を通過させることによって、前記凹部に集束させるステップと、
前記半導体デバイスの前記凹部を、集束された前記平行イオンプラズマと接触させて、前記ステージ上で前記半導体デバイスを回転および傾斜させながら、後の処理ステップのために前記凹部の残留基板層および前記絶縁体層を均一に除去し、前記複数の構造体のうちの選択された構造体を露出させるステップとを含む、処理方法。 - 前記凹部を形成する前に前記半導体デバイスの前記裏面を薄くするステップをさらに含む、請求項1に記載の方法。
- 前記複数の構造体が複数の相異なる材料の構造体を含む、請求項1に記載の方法。
- 前記相異なる材料が、タングステン、窒化タンタル、窒化シリコン、ドープされたシリコン、埋め込み酸化膜、浅いトレンチ絶縁体膜、高密度プラズマ堆積酸化膜、高密度プラズマ堆積窒化膜、CVDテトラオルソシリケート膜およびそれらの組合せからなる群から選択される、請求項3に記載の方法。
- 前記複数の構造体のうちの選択された構造体が非平面である、請求項1に記載の方法。
- 前記凹部が、前記基板層の元厚の30%乃至80%の範囲の深さまで前記基板層内に延びる、請求項1に記載の方法。
- 前記回転および傾斜用ステージが、−30℃乃至150℃の範囲の温度に制御される、請求項1に記載の方法。
- 前記後の処理ステップが、前記選択された構造体の電気的特徴付けまたは物理的解析を含む、請求項1に記載の方法。
- 前記処理チャンバ内で前記平行イオンプラズマを発生させる前記ステップが、
前記処理チャンバ内にイオン源を設けるステップと、
前記処理チャンバ内に第1コリメータおよび第2コリメータを設けるステップと、
前記イオン源からイオンプラズマを発生させるステップと、
前記イオンプラズマを前記第1および第2コリメータを通過させて、前記平行イオンプラズマを発生させるステップとを含む、請求項1に記載の方法。 - 前記イオン源が、アルゴン、ヘリウム、ネオン、およびキセノンからなる群から選択される、請求項9に記載の方法。
- 前記平行イオンプラズマを発生させるために処理チャンバ内に第3のコリメータを設けるステップをさらに含む、請求項9に記載の方法。
- 前記イオンプラズマを、前記第1および第2コリメータを通過させる前に、制御するための磁石をさらに含む、請求項9に記載の方法。
- 前記凹部の内部のみで前記半導体デバイスに化学反応併用イオンエッチングを行うために前記平行イオンプラズマにガスを混合されるステップをさらに含む、請求項1に記載の方法。
- 前記平行イオンプラズマを、8°乃至24°の範囲の入射角で前記凹部の内部のみに接触させる、請求項1に記載の方法。
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US10/752,162 US7015146B2 (en) | 2004-01-06 | 2004-01-06 | Method of processing backside unlayering of MOSFET devices for electrical and physical characterization including a collimated ion plasma |
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JP2005197735A JP2005197735A (ja) | 2005-07-21 |
JP4502819B2 true JP4502819B2 (ja) | 2010-07-14 |
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US (3) | US7015146B2 (ja) |
JP (1) | JP4502819B2 (ja) |
TW (1) | TWI322456B (ja) |
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US7867910B2 (en) * | 2008-06-10 | 2011-01-11 | International Business Machines Corporation | Method of accessing semiconductor circuits from the backside using ion-beam and gas-etch |
KR20140082993A (ko) * | 2011-09-27 | 2014-07-03 | 칩워크스, 인코포레이티드 | 상이한 에칭 속도에 기초하여 p-채널 또는 n-채널 디바이스들을 구별하는 방법 |
WO2013117667A1 (de) * | 2012-02-10 | 2013-08-15 | Arges Gmbh | Kontrastierungsverfahren mittels laser sowie vorrichtung zur durchführung eines kontrasierungsverfahrens |
US8993422B2 (en) * | 2012-11-09 | 2015-03-31 | Infineon Technologies Ag | Process tools and methods of forming devices using process tools |
US20140295584A1 (en) * | 2013-03-27 | 2014-10-02 | International Business Machines Corporation | Low energy collimated ion milling of semiconductor structures |
US9201112B2 (en) | 2013-12-09 | 2015-12-01 | International Business Machines Corporation | Atom probe tomography sample preparation for three-dimensional (3D) semiconductor devices |
US9170273B2 (en) * | 2013-12-09 | 2015-10-27 | Globalfoundries U.S. 2 Llc | High frequency capacitance-voltage nanoprobing characterization |
US10410854B2 (en) * | 2017-12-28 | 2019-09-10 | Globalfoundries Singapore Pte. Ltd. | Method and device for reducing contamination for reliable bond pads |
CN113707528B (zh) * | 2020-05-22 | 2023-03-31 | 江苏鲁汶仪器股份有限公司 | 一种离子源挡片、离子刻蚀机及其使用方法 |
CN112147485A (zh) * | 2020-09-15 | 2020-12-29 | 南京静春星电子商务有限公司 | 一种电视机内部电子产品设计的电路板通断节能检测装置 |
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JP2005197735A (ja) | 2005-07-21 |
US7993504B2 (en) | 2011-08-09 |
US7015146B2 (en) | 2006-03-21 |
US20080128086A1 (en) | 2008-06-05 |
US20060030160A1 (en) | 2006-02-09 |
TW200534347A (en) | 2005-10-16 |
US7371689B2 (en) | 2008-05-13 |
TWI322456B (en) | 2010-03-21 |
US20050148157A1 (en) | 2005-07-07 |
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