書誌事項
- タイトル別名
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- Scallop Reduction in Bosch Process Using a Small Chamber and Rapid Gas Switching Rate
- ミニマルエッチング ソウチ オ モチイタ ボッシュプロセス ニ オケル スキャロップ ノ テイゲンカ
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説明
<p>We have developed an inductively-coupled plasma-reactive ion etching system (ICP-RIE) in a human-size machine of minimal fab for processing a half-inch wafer. The etching system has performed a Bosch etching process with a short switching cycle in a tiny chamber with a volume of 1/4ℓ. For the tiny chamber, a plasma density generated by typical radio frequency of 13.56 MHz is too low according to the small space of the chamber. Thus, a higher frequency of 100 MHz is employed for a high density plasma operation although the power consumed is only ~40W. The Si etching rate of the Bosch process is ~2.5µm/min. Moreover, owing to a fast residence time of ~0.2 second, deposition gas (C4F8) and etching gas (SF6) are exchanged rapidly, which makes a Bosch cycle time of only 2 seconds. The resultant etching sidewall of Si structure becomes a scallop-less straight wall.</p>
収録刊行物
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- 電気学会論文誌E(センサ・マイクロマシン部門誌)
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電気学会論文誌E(センサ・マイクロマシン部門誌) 136 (12), 499-504, 2016
一般社団法人 電気学会
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詳細情報 詳細情報について
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- CRID
- 1390001204460117888
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- NII論文ID
- 130005171122
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- NII書誌ID
- AN1052634X
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- ISSN
- 13475525
- 13418939
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- NDL書誌ID
- 027784776
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- 本文言語コード
- ja
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