JP2021517362A - 熱処理システムにおける局所加熱のための支持板 - Google Patents
熱処理システムにおける局所加熱のための支持板 Download PDFInfo
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- H01L21/687—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches
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Abstract
Description
本出願は、2018年3月20日に出願され、「熱処理システムにおける局所加熱のための支持板」という発明の名称の米国仮出願第62/645,476号の優先権の利益を主張し、その全体は、あらゆる目的のために参照により本明細書に組み込まれる。
本明細書で使用される熱処理チャンバは、半導体ウェハなどのワークピースを加熱するデバイスを指す。そのようなデバイスは、1つまたは複数の半導体ウェハを支持するための支持板と、加熱ランプ、レーザまたは他の熱源などの、半導体ウェハを加熱するためのエネルギ源とを含むことができる。熱処理中、半導体ウェハは、事前設定された温度状況に従い制御された条件下で加熱することができる。
本開示の実施形態の態様および利点は、以下の説明で部分的に説明されるか、またはその説明から学ぶことができ、または実施形態の実施を通じて学ぶことができる。
次に、実施形態を詳細に参照し、その1つまたは複数の例が図面に示されている。各例は、本開示を限定するものではなく、実施形態の説明のために提供される。実際、当業者には、本開示の範囲または精神から逸脱することなく、実施形態に様々な修正および変更を加えることができることが明らかであろう。例えば、一実施形態の一部として図示または説明される特徴は、別の実施形態と共に使用して、さらに別の実施形態を生み出すことができる。したがって、本開示の態様は、そのような修正および変形を網羅することが意図されている。
Claims (20)
- ワークピースを加熱するよう構成された複数の熱源と、
熱処理中、前記ワークピースを支持するよう動作可能な回転可能な支持板と、
光源と、
を備え、
前記回転可能な支持板は、前記ワークピースに接触するよう構成された透過性支持構造であって、第1の端部および第2の端部を備え、前記支持構造の該第1の端部が前記ワークピースを支持するよう配置された、透過性支持構造を備え、
前記光源は、前記透過性支持構造を通してコヒーレント光を放射し、該コヒーレント光が前記ワークピースの、前記透過性支持構造に接触する部分を加熱するよう動作可能である、
熱処理装置。 - 前記透過性支持構造は、前記複数の熱源からの熱を前記ワークピースに透過するよう構成されている、請求項1記載の熱処理装置。
- 前記透過性支持構造は、石英材料を備える、請求項1記載の熱処理装置。
- 前記光源は、前記ワークピースの熱処理中の前記回転可能な支持板の回転中に、前記回転可能な支持板に対して静止位置に維持されるよう構成されている、請求項1記載の熱処理装置。
- 前記光源は、レーザを備える、請求項1記載の熱処理装置。
- 前記透過性支持構造は、複数の支持ピンを備える、請求項1記載の熱処理装置。
- 前記透過性支持構造はベースを備え、該ベースは、複数の支持ピンのうちの少なくとも2つの間に配置された準環状不透明部分を有し、前記準環状不透明部分は、前記光源の前記コヒーレント光が前記ワークピースを加熱するのを妨げるよう構成されている、請求項1記載の熱処理装置。
- 前記準環状不透明部分の幅は、前記ベースと接触する前記コヒーレント光の接触領域の直径を下回らない、請求項7記載の熱処理装置。
- 前記準環状不透明部分は、前記ベースの第2の表面上に波長選択コーティングを備える、請求項7記載の熱処理装置。
- 前記支持板の回転中に複数の支持ピンの1つが前記光源を通過するときに前記光源が前記複数の支持ピンの1つにかつ前記ワークピース上に前記コヒーレント光を放射し、かつ、前記複数の支持ピンの1つが前記光源の前方に位置していないときに前記光源が前記コヒーレント光の放射を停止するように、前記光源からの前記コヒーレント光の放射をベースの動きと同期させるコントローラをさらに備える、請求項1記載の熱処理装置。
- 前記透過性支持構造は、リング支持体を備える、請求項1記載の熱処理装置。
- 前記リング支持体は、前記ワークピースの中心に対して芯だしされている、請求項11記載の熱処理装置。
- 前記リング支持体の幅は、前記リング支持体に接触する前記コヒーレント光の接触領域の直径を下回らない、請求項11記載の熱処理装置。
- コヒーレント光源を制御して前記コヒーレント光を前記リング支持体に連続的に放射するよう構成されたコントローラをさらに備える、請求項11記載の熱処理装置。
- 熱処理装置内でワークピースを支持するための支持板であって、
ベースと、
前記ベースから延びる少なくとも1つの支持構造であって、熱処理中に前記ワークピースを支持するよう構成された少なくとも1つの支持構造と、
を備え、
前記ベースは、第1の熱透過率に関連する第1の部分と、第2の熱透過率に関連する第2の部分とを備え、前記第2の熱透過率は前記第1の熱透過率とは異なり、前記第2の部分は、前記少なくとも1つの支持構造に近接して位置する、
支持板。 - 前記少なくとも1つの支持構造は、支持ピンを備える、請求項15記載の支持板。
- 前記第2の部分は、前記支持ピンが前記ベースに接触する場所に位置する円形領域を備え、該円形領域の直径は前記支持ピンの直径よりも大きい、請求項16記載の支持板。
- 前記第2の部分は未加工の石英を備え、前記第1の部分は加工済みの石英を備え、前記加工済みの石英は前記第2の部分に比べて光透過率が低下させられている、請求項15記載の支持板。
- 前記加工済みの石英は、研削、コーティング、彫刻、またはドーピングの1つまたは複数で加工されている、請求項18記載の支持板。
- 処理チャンバ内でワークピースを加熱するためのプロセスであって、
前記処理チャンバ内の支持板上に前記ワークピースを配置するステップであって、
前記支持板は、熱処理中に前記ワークピースを支持するよう動作可能であり、
該支持板は、
ベースと、
該ベースから延びる少なくとも1つの支持構造と、
を備え、
前記少なくとも1つの支持構造は、熱処理中に前記ワークピースを支持するよう構成され、
前記ベースは、第1の熱透過率に関連する第1の部分と、第2の熱透過率に関連する第2の部分とを備え、前記第2の熱透過率は前記第1の熱透過率とは異なり、前記第2の部分は、前記少なくとも1つの支持構造に近接して位置する、
支持板上に前記ワークピースを配置するステップと、
前記ワークピースを複数のランプ熱源で前記ベースおよび前記少なくとも1つの支持構造を通して加熱するステップと、
を含む、プロセス。
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KR102425734B1 (ko) | 2022-07-28 |
US11521868B2 (en) | 2022-12-06 |
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US20190295869A1 (en) | 2019-09-26 |
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