JP2010059536A - 半導体上での光誘導めっき方法 - Google Patents
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Abstract
【解決手段】めっきプロセスを開始するために、半導体に初期光強度8000ルクス〜20,000ルクス、または例えば10,000ルクス〜15,000ルクスの光を、典型的には、0.25秒〜15秒間、より典型的には2秒〜15秒間、最も典型的には5秒〜10秒間適用し、続いて、残りの期間、光の強度を典型的には、初期光強度の20%〜50%、または例えば30%〜40%低減させる。
【選択図】なし
Description
その前面上にピラミッド状エレベーション(pyramidal elevation)を有する1つのドープされた多結晶性シリコンウェハおよび8つのドープされた単結晶性シリコンウェハが提供された。それぞれのドープされたシリコンウェハは、エミッタ層を形成するウェハの前面上にn+ドープされた領域を有していた。それぞれのウェハはエミッタ層の下にpn接合を有していた。それぞれのウェハの前面は、Si3N4からなる不動態化または反射防止層で被覆されていた。それぞれのウェハの前面は、反射防止層を貫通しシリコンウェハの表面を露出させた電流トラックのためのパターンを有していた。それぞれの電流トラックはウェハの全長を横切っていた。電流トラックはそれぞれのウェハの端でおよびそれぞれのウェハの中心でバスバーと接続していた。それぞれのウェハの裏面はp+ドープされており、アルミニウム電極を含んでいた。
6つのドープされた単結晶性半導体ウェハおよび1つのドープされた多結晶性ウェハを用いて、上記例1−9に開示された方法が繰り返された。例10−13の単結晶性ウェハは例1−9におけるのと同じタイプの無電解ニッケル組成物を用いてニッケルめっきされた。例14の多結晶性ウェハ並びに例15および16の単結晶性ウェハは35℃〜45℃の温度でNiPosit(商標)PM988を用いてニッケルめっきされた。めっきサイクル中ずっと、ウェハに人工光が適用された。その光源は250ワットのハロゲンランプであった。
4つの単結晶性ウェハおよび4つの多結晶性ウェハが上記例1−9に記載されるようにドープされた。それぞれのウェハは、化学的に不活性のめっきセル中に収容された無電解ニッケル組成物中に浸漬された。めっきセルは光に対して透明であった。実施例17−18の単結晶性ウェハはDuraposit(商標)SMT88を用いてニッケルでめっきされた。残りのウェハはNiPosit(商標)PM988でニッケルめっきされた。ニッケル堆積中ずっと、人工光が適用された。光源は、例2において使用されたような250ワットのハロゲンランプであった。例10−16に開示されるように、ウェハについての平均光強度が決定された。この実施例の全てについての初期光強度は13786ルクスであると決定された。所定の期間後、残りのめっきサイクルについては、初期光強度が、初期光強度の所定量(パーセンテージ)まで低減された。下記の表3はめっき時間、光強度、ウェハのニッケル堆積物厚みおよびめっきの結果を開示する。
Claims (9)
- a)前面および裏面を含むドープされた半導体であって、当該前面がnドープされ、かつ反射防止層を含み、当該反射防止層は、反射防止層の下の半導体のnドープされた前面の一部分を露出させるパターン形成された開口を含み、裏面が金属被膜を含む、ドープされた半導体を提供し;
b)ドープされた半導体をニッケルめっき組成物と接触させ;および
c)ドープされた半導体に初期光強度で所定の期間で光を適用し、続いて、残りのめっきサイクルについて、当該初期光強度を所定量まで低減させて、ドープされた半導体のnドープされた前面の露出部分上にニッケル層を堆積させること;
を含む方法。 - ニッケル層を焼結してニッケルシリサイド上にニッケルを形成させる工程をさらに含む、請求項1に記載の方法。
- ニッケルシリサイド上のニッケル上に1以上の金属層を堆積させる工程をさらに含む、請求項2に記載の方法。
- ニッケルシリサイドからニッケルをはぎ取る工程をさらに含む、請求項2に記載の方法。
- ニッケルシリサイド上に1以上の金属層を堆積させる工程をさらに含む、請求項4に記載の方法。
- 初期光強度が、残りのめっきサイクルについて初期光強度の5%〜50%まで低減される、請求項1に記載の方法。
- 初期光強度の所定の期間が0秒より大きく15秒までである、請求項1に記載の方法。
- ニッケル層の厚みが20nm〜300nmである請求項1に記載の方法。
- ドープされた半導体が太陽電池または光起電力デバイスのためのものである、請求項1に記載の方法。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13376508P | 2008-07-02 | 2008-07-02 | |
| US61/133,765 | 2008-07-02 |
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| Publication Number | Publication Date |
|---|---|
| JP2010059536A true JP2010059536A (ja) | 2010-03-18 |
| JP5357638B2 JP5357638B2 (ja) | 2013-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2009149616A Expired - Fee Related JP5357638B2 (ja) | 2008-07-02 | 2009-06-24 | 半導体上での光誘導めっき方法 |
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| Country | Link |
|---|---|
| US (1) | US7955977B2 (ja) |
| EP (1) | EP2141750B1 (ja) |
| JP (1) | JP5357638B2 (ja) |
| KR (1) | KR101578035B1 (ja) |
| CN (1) | CN101630703B (ja) |
| TW (1) | TWI392104B (ja) |
Cited By (6)
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| JP2012126999A (ja) * | 2010-12-13 | 2012-07-05 | Rohm & Haas Electronic Materials Llc | 半導体の電気化学エッチング |
| JP2012237060A (ja) * | 2011-04-19 | 2012-12-06 | Rohm & Haas Electronic Materials Llc | 半導体上の銅のめっき |
| JP2015504606A (ja) * | 2011-11-23 | 2015-02-12 | アイメックImec | 金属シリサイド層を形成する方法 |
| JP2015529401A (ja) * | 2012-09-24 | 2015-10-05 | アイメック・ヴェーゼットウェーImec Vzw | シリコン太陽電池の製造方法 |
| KR20160124635A (ko) * | 2015-04-20 | 2016-10-28 | 한국과학기술원 | 금속 실리사이드 초박막이 코팅된 전도성 단결정 실리콘 입자, 이를 포함하는 고용량 이차전지용 음극활물질 및 그 제조방법 |
| KR101766020B1 (ko) * | 2015-07-07 | 2017-08-08 | 한국과학기술원 | 미세기공을 포함하는 고전도성 탄소와 금속 초박막이 코팅된 전도성 단결정 실리콘 입자, 이를 포함하는 고용량 이차전지용 음극활물질 및 그 제조방법 |
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| US7999175B2 (en) * | 2008-09-09 | 2011-08-16 | Palo Alto Research Center Incorporated | Interdigitated back contact silicon solar cells with laser ablated grooves |
| US9150966B2 (en) * | 2008-11-14 | 2015-10-06 | Palo Alto Research Center Incorporated | Solar cell metallization using inline electroless plating |
| KR101113068B1 (ko) * | 2010-12-30 | 2012-02-15 | (주)지오데코 | 광 유도 플레이팅을 이용한 태양전지 전극 형성방법 |
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| US8962424B2 (en) | 2011-03-03 | 2015-02-24 | Palo Alto Research Center Incorporated | N-type silicon solar cell with contact/protection structures |
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| DE102011051707A1 (de) | 2011-07-08 | 2013-01-10 | Schott Solar Ag | Verfahren zum Herstellen einer Solarzelle |
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- 2009-06-23 US US12/456,790 patent/US7955977B2/en not_active Expired - Fee Related
- 2009-06-24 JP JP2009149616A patent/JP5357638B2/ja not_active Expired - Fee Related
- 2009-06-25 TW TW098121330A patent/TWI392104B/zh not_active IP Right Cessation
- 2009-06-29 KR KR1020090058539A patent/KR101578035B1/ko not_active Expired - Fee Related
- 2009-07-02 CN CN2009101594631A patent/CN101630703B/zh not_active Expired - Fee Related
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012126999A (ja) * | 2010-12-13 | 2012-07-05 | Rohm & Haas Electronic Materials Llc | 半導体の電気化学エッチング |
| JP2012237060A (ja) * | 2011-04-19 | 2012-12-06 | Rohm & Haas Electronic Materials Llc | 半導体上の銅のめっき |
| JP2015504606A (ja) * | 2011-11-23 | 2015-02-12 | アイメックImec | 金属シリサイド層を形成する方法 |
| JP2015529401A (ja) * | 2012-09-24 | 2015-10-05 | アイメック・ヴェーゼットウェーImec Vzw | シリコン太陽電池の製造方法 |
| KR20160124635A (ko) * | 2015-04-20 | 2016-10-28 | 한국과학기술원 | 금속 실리사이드 초박막이 코팅된 전도성 단결정 실리콘 입자, 이를 포함하는 고용량 이차전지용 음극활물질 및 그 제조방법 |
| KR101718219B1 (ko) * | 2015-04-20 | 2017-03-20 | 한국과학기술원 | 금속 실리사이드 초박막이 코팅된 전도성 단결정 실리콘 입자, 이를 포함하는 고용량 이차전지용 음극활물질 및 그 제조방법 |
| KR101766020B1 (ko) * | 2015-07-07 | 2017-08-08 | 한국과학기술원 | 미세기공을 포함하는 고전도성 탄소와 금속 초박막이 코팅된 전도성 단결정 실리콘 입자, 이를 포함하는 고용량 이차전지용 음극활물질 및 그 제조방법 |
| US10164253B2 (en) | 2015-07-07 | 2018-12-25 | Korea Advanced Institute Of Science And Technology | Conductive single crystal silicon particles coated with highly conductive carbon containing nanopores and ultrathin metal film, high capacity lithium anode material including the same, and preparing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201013960A (en) | 2010-04-01 |
| TWI392104B (zh) | 2013-04-01 |
| EP2141750A3 (en) | 2012-11-07 |
| KR20100004053A (ko) | 2010-01-12 |
| CN101630703B (zh) | 2012-03-28 |
| EP2141750A2 (en) | 2010-01-06 |
| US7955977B2 (en) | 2011-06-07 |
| KR101578035B1 (ko) | 2015-12-16 |
| JP5357638B2 (ja) | 2013-12-04 |
| CN101630703A (zh) | 2010-01-20 |
| US20100003817A1 (en) | 2010-01-07 |
| EP2141750B1 (en) | 2013-10-16 |
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