JP7109564B2 - マルチパスレーザスクライビングプロセスとプラズマエッチングプロセスを使用したハイブリッドウエハダイシングアプローチ - Google Patents
マルチパスレーザスクライビングプロセスとプラズマエッチングプロセスを使用したハイブリッドウエハダイシングアプローチ Download PDFInfo
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Description
本出願は、2018年3月12日出願の米国特許出願第15/918,673号の優先権を主張するものであり、この出願の全内容が、本明細書で参照することにより本書に組み込まれる。
Claims (8)
- 複数の集積回路を備える半導体ウエハをダイシングする方法であって、
前記半導体ウエハの上に、前記集積回路を覆い保護する層を備えるマスクを形成することと、
前記集積回路間の前記半導体ウエハの領域を露出させる空隙を有するパターニングされたマスクを提供するために、マルチパスレーザスクライビングプロセスで前記マスクをパターニングすることであって、前記マルチパスレーザスクライビングプロセスは、前記空隙の中心に位置する中心スクライブパスに沿った第1のパスと、前記空隙の一方側の側壁寄りに位置する第1のエッジスクライブパスに沿った第2のパスと、前記空隙の反対側の側壁寄りに位置する第2のエッジスクライブパスに沿った第3のパスと、前記第2のエッジスクライブパスに沿った第4のパスと、前記第1のエッジスクライブパスに沿った第5のパスと、前記中心スクライブパスに沿った第6のパスとを含み、前記第1のパスは前記第2のパスの前に処理され、前記第2のパスは前記第3のパスの前に処理され、前記第3のパスは前記第4のパスの前に処理され、前記第4のパスは前記第5のパスの前に処理され、前記第5のパスは前記第6のパスの前に処理される、マルチパスレーザスクライビングプロセスで前記マスクをパターニングすることと、
前記集積回路を個片化するために、前記パターニングされたマスクの空隙を通して前記半導体ウエハをプラズマエッチングすることと
を含む方法。 - 前記マルチパスレーザスクライビングプロセスは、約10ミクロンのスポットサイズを有するレーザビームを使用することを含む、請求項1に記載の方法。
- 前記第1のエッジスクライブパスの中心と前記中心スクライブパスの中心との間の間隔が約5ミクロンであり、前記中心スクライブパスの中心と前記第2のエッジスクライブパスの中心との間の間隔が約5ミクロンである、請求項2に記載の方法。
- 前記マルチパスレーザスクライビングプロセスで前記マスクをパターニングすることは、前記集積回路間の前記半導体ウエハの前記領域にトレンチを形成することを含み、前記半導体ウエハをプラズマエッチングすることは、対応するトレンチ延長部を形成するために前記トレンチを延長することを含み、前記トレンチは約20ミクロンの幅、及び5~6ミクロンの範囲の深さを有する、請求項3に記載の方法。
- 前記第1のエッジスクライブパスの中心と前記中心スクライブパスの中心との間の間隔は約8ミクロンであり、前記中心スクライブパスの中心と前記第2のエッジスクライブパスの中心との間の間隔は約8ミクロンである、請求項2に記載の方法。
- 前記マルチパスレーザスクライビングプロセスで前記マスクをパターニングすることは、前記集積回路間の前記半導体ウエハの前記領域にトレンチを形成することを含み、前記半導体ウエハをプラズマエッチングすることは、対応するトレンチ延長部を形成するために前記トレンチを延長することを含み、前記トレンチは25から30ミクロンの範囲の幅、及び5ミクロン以下の深さを有する、請求項5に記載の方法。
- 前記マルチパスレーザスクライビングプロセスは、ガウス型レーザビームに基づく、請求項1に記載の方法。
- 複数の集積回路を備える半導体ウエハをダイシングするシステムであって、
ファクトリインターフェースと、
前記ファクトリインターフェースに連結されたレーザスクライブ装置であって、第1のエッジスクライブパスに沿った複数のパス、中心スクライブパスに沿った複数のパス、及び第2のエッジスクライブパスに沿った複数のパスを含む、マルチパスレーザスクライビングプロセスを提供するように構成されたレーザアセンブリを備え、当該レーザアセンブリが、空隙の中心に位置する前記中心スクライブパスに沿った第1のパスと、前記空隙の一方側の側壁寄りに位置する前記第1のエッジスクライブパスに沿った第2のパスと、前記空隙の反対側の側壁寄りに位置する前記第2のエッジスクライブパスに沿った第3のパスと、前記第2のエッジスクライブパスに沿った第4のパスと、前記第1のエッジスクライブパスに沿った第5のパスと、前記中心スクライブパスに沿った第6のパスとを含み、前記第1のパスは前記第2のパスの前に処理され、前記第2のパスは前記第3のパスの前に処理され、前記第3のパスは前記第4のパスの前に処理され、前記第4のパスは前記第5のパスの前に処理され、前記第5のパスは前記第6のパスの前に処理される、前記マルチパスレーザスクライビングプロセスを提供するように構成されている、レーザスクライブ装置と、
前記ファクトリインターフェースに連結されたプラズマエッチングチャンバと、
を備える、システム。
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| US15/918,673 US10535561B2 (en) | 2018-03-12 | 2018-03-12 | Hybrid wafer dicing approach using a multiple pass laser scribing process and plasma etch process |
| PCT/US2019/017893 WO2019177737A1 (en) | 2018-03-12 | 2019-02-13 | Hybrid wafer dicing approach using a multiple pass laser scribing process and plasma etch process |
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| JP7296718B2 (ja) * | 2018-12-11 | 2023-06-23 | 株式会社ディスコ | ウェーハの加工方法 |
| US10818551B2 (en) * | 2019-01-09 | 2020-10-27 | Semiconductor Components Industries, Llc | Plasma die singulation systems and related methods |
| GB201918333D0 (en) * | 2019-12-12 | 2020-01-29 | Spts Technologies Ltd | A semiconductor wafer dicing process |
| US11854888B2 (en) * | 2020-06-22 | 2023-12-26 | Applied Materials, Inc. | Laser scribing trench opening control in wafer dicing using hybrid laser scribing and plasma etch approach |
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| JP7724443B2 (ja) * | 2021-06-16 | 2025-08-18 | パナソニックIpマネジメント株式会社 | 素子チップの製造方法、および、基板の加工方法 |
| TWI782703B (zh) | 2021-09-13 | 2022-11-01 | 錼創顯示科技股份有限公司 | 發光二極體結構及其製造方法 |
| CN116417402A (zh) * | 2022-01-10 | 2023-07-11 | 意法半导体(克洛尔2)公司 | 从半导体衬底晶片制造集成电路的方法 |
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