JP6787612B2 - 第1物体を第2物体に対して位置決めする装置及び方法 - Google Patents
第1物体を第2物体に対して位置決めする装置及び方法 Download PDFInfo
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- JP6787612B2 JP6787612B2 JP2019529776A JP2019529776A JP6787612B2 JP 6787612 B2 JP6787612 B2 JP 6787612B2 JP 2019529776 A JP2019529776 A JP 2019529776A JP 2019529776 A JP2019529776 A JP 2019529776A JP 6787612 B2 JP6787612 B2 JP 6787612B2
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- 238000000034 method Methods 0.000 title claims description 13
- 239000004065 semiconductor Substances 0.000 claims description 61
- 239000000758 substrate Substances 0.000 claims description 22
- 238000001514 detection method Methods 0.000 claims description 17
- 230000003287 optical effect Effects 0.000 description 26
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
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- H01L2224/8512—Aligning
- H01L2224/85121—Active alignment, i.e. by apparatus steering, e.g. optical alignment using marks or sensors
- H01L2224/85122—Active alignment, i.e. by apparatus steering, e.g. optical alignment using marks or sensors by detecting inherent features of, or outside, the semiconductor or solid-state body
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- H01L2224/85121—Active alignment, i.e. by apparatus steering, e.g. optical alignment using marks or sensors
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- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L24/10—Bump connectors ; Manufacturing methods related thereto
- H01L24/15—Structure, shape, material or disposition of the bump connectors after the connecting process
- H01L24/16—Structure, shape, material or disposition of the bump connectors after the connecting process of an individual bump connector
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- H01L24/31—Structure, shape, material or disposition of the layer connectors after the connecting process
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Description
以下、第1物体を第2物体に対して位置決めする装置として、半導体ダイ15を基板16等に実装する実装装置100を例に説明する。図1に示すように、本実施形態の実装装置100は、第1物体である半導体ダイ15を第2物体である基板16または図示しない第2物体である他の半導体ダイの予め定められた領域に位置決めして実装するものである。実装装置100は、移動体であるベース10と、半導体ダイ15を保持する保持部であるボンディングヘッド20と、基板16の位置を特定する位置特定手段であるカメラ25と、第1位置検出部であるボンディングヘッド側エンコーダヘッド31と、第2位置検出部であるカメラ側エンコーダヘッド32と、複数の目盛34を有するリニアスケール33と、制御部50と、下カメラ40と、基板16を吸着固定するボンディングステージ13とを備えている。ここで、実装装置100は、例えば半導体ダイ15を反転させた後に基板16に実装するフリップチップボンディング装置でもよいし、半導体ダイ15を反転させずに基板16に実装するダイボンディング装置であってもよい。
次に、図2、図3を参照しながら本実施形態の実装装置100の基本動作について説明する。図2(a)は、ベース10が第1位置にある場合を示す。図2、図3の説明では、第1位置はカメラ25の光軸26zの位置Cが基板16の特定領域であるボンディング領域の中心位置Sと一致する位置であり、ボンディングツール21の中心位置BHと半導体ダイ15の中心位置Dとは一致しており、ボンディングツール21に吸着された半導体ダイ15の中心位置Dはボンディングヘッド20のZ方向の中心線22zの上にあるとして説明する。
図2、図3では、第1位置はカメラ25の光軸26zの位置C(x,y)がボンディング領域の中心位置S(x,y)と一致する位置であり、ボンディングツール21の中心位置BHと半導体ダイ15の中心位置Dとは一致しており、ボンディングツール21に吸着された半導体ダイ15の中心位置Dはボンディングヘッド20の中心線22zの上にあるとして説明したが、実際には、第1位置においてカメラ25の光軸26zの位置Cとボンディング領域の中心位置Sとにはズレが有り、ボンディングツール21に吸着された半導体ダイ15の中心位置Dとボンディングツール21の中心位置BHにもズレがある。そこで、次に図4から図6を参照しながら、実装装置100の実際の動作(電子部品実装方法)について説明する。
Claims (9)
- 第1物体を第2物体に対して位置決めする装置であって、
前記第2物体に対して直線移動する移動体と、
前記移動体に取り付けられて前記第1物体を保持する保持部と、
前記移動体の移動方向に沿って前記保持部と所定の間隔を開けて前記移動体に取り付けられ、前記第2物体の位置を特定する位置特定手段と、
前記移動体の前記移動方向に沿って配置され、前記移動方向に沿って複数の目盛を有するスケールと、
前記保持部に対応して前記移動体に取り付けられ、前記目盛に基づいて前記保持部の位置を検出する第1位置検出部と、
前記位置特定手段に対応して前記第1位置検出部と前記所定の間隔を開けて前記移動体に取り付けられ、特定された前記第2物体の位置に対応する前記スケールの目盛位置を検出する第2位置検出部と、
前記第1位置検出部が前記目盛位置を検出する位置に前記移動体を移動させて前記第1物体を前記第2物体に対して位置決めをする制御部とを備える、
装置。 - 前記第1物体は、半導体ダイであり、
前記第2物体は、前記半導体ダイが実装される、基板又は他の半導体ダイであり、
前記装置は、前記第1物体を前記第2物体の予め定められた領域に位置決めをする装置であることを特徴とする、
請求項1に記載の装置。 - 請求項1に記載の装置であって、
前記位置特定手段は、光学的に前記第2物体の位置を特定するカメラであって、
前記制御部は、
前記位置特定手段を前記第2物体の特定領域が前記位置特定手段の視野に入る第1位置に前記移動体を移動させ、第2位置検出部で前記第1位置における前記スケールの前記目盛位置を検出し、
前記位置特定手段で前記第2物体の前記特定領域を撮像した画像に基づいて前記特定領域に対する前記位置特定手段の第1相対位置を検出し、
前記第1相対位置に基づいて、前記第1物体を前記第2物体に対して位置決めをする際の前記移動体の位置を補正する補正量を算出する、
装置。 - 請求項2に記載の装置であって、
前記位置特定手段は、光学的に前記第2物体の位置を特定するカメラであって、
前記制御部は、
前記位置特定手段を前記第2物体の特定領域が前記位置特定手段の視野に入る第1位置に前記移動体を移動させ、第2位置検出部で前記第1位置における前記スケールの前記目盛位置を検出し、
前記位置特定手段で前記第2物体の前記特定領域を撮像した画像に基づいて前記特定領域に対する前記位置特定手段の第1相対位置を検出し、
前記第1相対位置に基づいて、前記第1物体を前記第2物体に対して位置決めをする際の前記移動体の位置を補正する補正量を算出する、
装置。 - 請求項1から4のいずれか1項に記載の装置であって、
前記保持部の保持面側に配置され、保持面に対する前記第1物体の第2相対位置を特定する保持位置特定手段をさらに含み、
前記制御部は、
前記第2相対位置に基づいて、前記第1物体を前記第2物体に対して位置決めをする際の前記移動体の位置を補正する補正量を算出する、
装置。 - 請求項3に記載の装置であって、
前記制御部は、前記補正量に基づいて、前記スケールにおける目標目盛位置を算出する、
装置。 - 請求項4に記載の装置であって、
前記制御部は、前記補正量に基づいて、前記スケールにおける目標目盛位置を算出する、
装置。 - 請求項5に記載の装置であって、
前記制御部は、前記補正量に基づいて、前記スケールにおける目標目盛位置を算出する、
装置。 - 第1物体を第2物体に対して位置決めする方法であって、
保持部により前記第1物体を保持する工程と、
前記第1物体を保持する前記保持部及び位置特定手段が設けられた移動体を所定の位置に移動させる移動工程と、
前記移動体の移動方向に沿って前記保持部と所定の間隔を開けて前記移動体に取り付けられた前記位置特定手段により、前記第2物体の位置を特定する位置特定工程と、
前記位置特定手段に対応して第1位置検出部と前記所定の間隔を開けて前記移動体に取り付けられた第2位置検出部によって、特定された前記第2物体の位置に対応するスケールの目盛位置を検出する位置検出工程と、
前記移動体に配置された第1位置検出部により前記スケールの目盛を読み取って、前記目盛位置を検出する位置に前記保持部を移動させて前記第1物体を前記第2物体に対して位置決めをする位置決め工程と、
を含む、方法。
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