JP2005150386A - 半導体装置及びその製造方法 - Google Patents
半導体装置及びその製造方法 Download PDFInfo
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- JP2005150386A JP2005150386A JP2003385645A JP2003385645A JP2005150386A JP 2005150386 A JP2005150386 A JP 2005150386A JP 2003385645 A JP2003385645 A JP 2003385645A JP 2003385645 A JP2003385645 A JP 2003385645A JP 2005150386 A JP2005150386 A JP 2005150386A
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Abstract
【解決手段】 半導体素子(30)の第1の面上に第1及び第2の電極(36、37)が形成されている。支持基板(1)が、その対向面を半導体素子の第1の面に対向するように配置される。支持基板の、第1及び第2の電極にそれぞれ対向する位置に第1及び第2の引出電極層(4、5)が形成されている。支持基板及び半導体素子の対向面の一方の上に、堰堤膜(14)が配置されている。第1及び第2の電極に対応する位置にそれぞれ第1及び第2の開口(15、16)が形成されている。第1の接続部材(10、38)が、第1の開口内を通って、第1の電極と第1の引出電極層とを接続し、第1の開口内を完全には埋め尽くさない。第2の接続部材(11、39)が、第2の開口内を通って、第2の電極と第2の引出電極層とを接続し、第2の開口内を完全には埋め尽くさない。
【選択図】 図1
Description
前記第2の開口内を通って、前記第2の電極と前記第2の引出電極層とを電気的に接続し、該第2の開口内を完全には埋め尽くさない第2の接続部材とを有する半導体装置が提供される。
Lau=Lt×Vau/(n+2)
Lsn=Lt×Vsn/n
となる。合計の厚さLtを1200nm、Sn層の層数nを5とすると、Vau=0.544、Vsn=0.456のとき、
Lau=93.3nm
Lsn=109.4nm
となる。
2 シリコン基板
3、112 絶縁膜
4、5 引出配線層
6、7、12、13、51、52、76、77、91、92、104、105、111 接着層
8、9、71、72、81、82 バリア層
10、11、73、74、83、84 接続部材
14、103 堰堤膜
15、16、53、54、93、94、106、107 開口
30 半導体発光素子
31 サファイア基板
32 初期核成長層
33 n型半導体層
34 活性層
35 p型半導体層
36、37 オーミック電極
38、39、61、62、87、88、101、102 パッド電極(接続部材)
40、41 リード線
50、75、90 保護膜
Claims (27)
- 第1の面上に第1の電極及び第2の電極が形成されている半導体素子と、
対向面を、前記半導体素子の第1の面に対向させるように配置され、前記第1の電極及び第2の電極にそれぞれ対向する位置に配置された第1の引出電極層及び第2の引出電極層を含む支持基板と、
前記支持基板の対向面及び前記半導体素子の第1の面の少なくとも一方の、少なくとも一部の領域上に配置され、前記第1の電極及び第2の電極に対応する位置にそれぞれ第1の開口及び第2の開口が形成されており、絶縁材料で形成された堰堤膜と、
前記第1の開口内を通って、前記第1の電極と前記第1の引出電極層とを電気的に接続し、該第1の開口内を完全には埋め尽くさない第1の接続部材と、
前記第2の開口内を通って、前記第2の電極と前記第2の引出電極層とを電気的に接続し、該第2の開口内を完全には埋め尽くさない第2の接続部材と
を有する半導体装置。 - 前記堰堤膜が、酸化シリコン、アルミナ、酸化チタン、ジルコニア、ハフニア、ポリイミド樹脂からなる群より選択された1つの絶縁材料で形成されている請求項1に記載の半導体装置。
- 前記堰堤膜の厚さが500nm〜3000nmである請求項1または2に記載の半導体装置。
- 前記堰堤膜が前記支持基板の対向面上に配置されており、前記第1の接続部材が、前記支持基板側に配置された支持基板側部分と、前記半導体素子側に配置された半導体素子側部分とを含み、該支持基板側部分の、前記半導体素子に対向する面が、該半導体素子側部分の、前記支持基板に対向する面よりも広く、前記堰堤膜が、該支持基板側部分の、前記半導体素子に対向する面の一部に、両者の密着性を高める材料からなる第1の接着層を介して密着している請求項1〜3のいずれかに記載の半導体装置。
- 前記第1の接着層が、チタン、ニッケル、アルミニウムからなる群より選択された1つの材料で形成されている請求項4に記載の半導体装置。
- 前記堰堤膜が前記半導体素子の対向面上に配置されており、前記第1の接続部材が、前記支持基板側に配置された支持基板側部分と、前記半導体素子側に配置された半導体素子側部分とを含み、該半導体素子側部分の、前記支持基板に対向する面が、該支持基板側部分の、前記半導体素子に対向する面よりも広く、前記堰堤膜が、該半導体素子側部分の、前記支持基板に対向する面の一部に、両者の密着性を高める材料からなる第2の接着層(104)を介して密着している請求項1〜3のいずれかに記載の半導体装置。
- 前記第2の接着層が、チタン、ニッケル、アルミニウムからなる群より選択された1つの材料で形成されている請求項6に記載の半導体装置。
- 前記第1の接続部材及び第2の接続部材が、AuとSnとが共晶化した導電材料からなる部分を含む請求項1〜7のいずれかに記載の半導体装置。
- 前記堰堤膜が前記支持基板の対向面上に配置されており、前記半導体素子の第1の面、第1の電極、及び第2の電極の表面が絶縁材料からなる保護膜で覆われており、該保護膜に、該第1の電極の上面の一部及び第2の電極の上面の一部を露出させる第3の開口及び第4の開口が形成されており、前記第1の接続部材が該第3の開口内を通って前記第1の電極に接続され、前記第2の接続部材が該第4の開口内を通って前記第2の電極に接続されており、前記第1の接続部材の周囲及び前記第2の接続部材の周囲において、前記保護膜が前記堰堤膜に接触している請求項1〜3のいずれかに記載の半導体装置。
- 前記第1の引出電極層の一部が前記第2の引出電極層と重なり、両者の間に誘電体膜が配置されてキャパシタが構成されている請求項1〜3のいずれかに記載の半導体装置。
- 前記第1の接続部剤が、前記支持基板側に配置された支持基板側部分と、前記半導体素子側に配置された半導体素子側部分とを含み、該支持基板側部分と半導体素子側部分との一方部分の、他方の部分に対向する面に、溝が形成されている請求項1〜10のいずれかに記載の半導体装置。
- 前記支持基板側部分及び半導体素子側部分のうち、前記溝の形成されていない方の部分を形成する材料が、前記溝の内部に侵入している請求項11に記載の半導体装置。
- 第1の面上に第1の電極及び第2の電極が形成されている半導体素子と、
前記半導体素子の第1の面に対向配置され、前記第1の電極及び第2の電極にそれぞれ対向する位置に配置された第1の引出電極層及び第2の引出電極層を含む支持基板と、
前記第1の電極の対向面と前記第1の引出電極層の対向面との間に画定された第1の空間を取り囲み、該第1の電極の対向面から該第1の引出電極層の対向面まで連続して該第1の空間を閉じた空間とし、前記第2の電極の対向面と前記第2の引出電極層の対向面との間に画定された第2の空間を取り囲み、該第2の電極の対向面から該第2の引出電極層の対向面まで連続して該第2の空間を閉じた空間とし、絶縁材料で形成されている絶縁部材と、
前記第1の空間内に配置され、前記第1の電極と前記第1の引出電極層とを電気的に接続する第1の接続部材と、
前記第2の空間内に配置され、前記第2の電極と前記第2の引出電極層とを電気的に接続する第2の接続部材と
を有する半導体装置。 - 前記絶縁部材が、前記半導体素子の第1の面、前記第1の電極及び第2の電極を覆う保護膜を含む請求項13に記載の半導体装置。
- 前記絶縁部材が、前記支持基板上に形成された堰堤膜を含み、該堰堤膜に前記第1の空間の一部及び第2の空間の一部を画定する開口が設けられており、前記第1の接続部材が、前記支持基板側に配置された支持基板側部分と、前記半導体素子側に配置された半導体素子側部分とを含み、該支持基板側部分の、前記半導体素子に対向する面が、該半導体素子側部分の、前記支持基板に対向する面よりも広く、前記堰堤膜が、該支持基板側部分の、前記半導体素子に対向する面の一部に、両者の密着性を高める材料からなる第1の接着層を介して密着している請求項13または14に記載の半導体装置。
- 前記第1の接続部材及び第2の接続部材が、AuとSnとが共晶化した導電材料からなる部分を含む請求項13〜15のいずれかに記載の半導体装置。
- 第1の面上に第1の電極及び第2の電極が形成され、該第1の電極上に第3の接続部材が形成され、該第2の電極上に第4の接続部材が形成されている第1の基板を準備する工程と、
第2の面を、前記第1の基板の第1の面に対向配置した時、該第2の面上の、前記第3の接続部材及び第4の接続部材に対応する位置に、それぞれ第5の接続部材及び第6の接続部材が形成され、該第5の接続部材及び第6の接続部材が、絶縁材料からなる堰堤膜で被覆され、該堰堤膜に、該第5の接続部材及び第6の接続部材の上面を露出させる第1の開口及び第2の開口が形成され、該第1の面の法線に平行な視線で見たとき、該第1の開口の内側に前記第3の接続部材が位置し、該第2の開口の内側に前記第4の接続部材が位置する第2の基板を準備する工程と、
前記第3の接続部材を、前記第1の開口内を通して前記第5の接続部材部材に接触させると共に、前記第4の接続部材を、前記第2の開口内を通して前記第6の接続部材に接触させ、該第3の接続部材と第5の接続部材との接触部分、及び前記第4の接続部材と第6の接続部材との接触部分を共晶化させる工程と
を有する半導体装置の製造方法。 - 前記第3の接続部材の体積が前記第1の開口の容積よりも小さく、前記第4の接続部材の体積が前記第2の開口の容積よりも小さい請求項17に記載の半導体装置の製造方法。
- 前記共晶化させる工程において、前記堰堤膜の上面のうち、前記第1の開口を取り囲む環状の領域及び前記第2の開口を取り囲む環状の領域を、前記第1の基板に接触させる請求項17または18に記載の半導体装置の製造方法。
- 第1の面上に第3の接続部材及び第4の接続部材が形成されている第1の基板を準備する工程と、
第2の面上に、絶縁材料からなる堰堤膜が形成され、該第2の面を、前記第1の基板の第1の面に対向配置した時、該堰堤膜の、前記第3の接続部材及び第4の接続部材に対応する位置に、それぞれ第1の開口及び第2の開口が形成され、該第1の開口内及び第2の開口内にそれぞれ第5の接続部材及び第6の接続部材が配置され、該第5の接続部材と該第1の開口の内周面との間、及び該第6の接続部材と第2の開口の内周面との間に空隙が画定され、該第5の接続部材の上面は第1の開口の開口面から突出し、該第6の接続部材の上面は第2の開口の開口面から突出している第2の基板を準備する工程と、
前記第3の接続部材を前記第5の接続部材に接触させ、前記第4の接続部材を前記第6の接続部材に接触させて、接触部分を共晶化させる工程と
を有する半導体装置の製造方法。 - 前記第5の接続部材と第1の開口の内周面との間に画定された空隙の容積は、前記第5の接続部材が前記第1の開口の開口面から突出している部分の体積よりも大きく、前記第6の接続部材と第2の開口の内周面との間に画定された空隙の容積は、前記第6の接続部材が前記第2の開口の開口面から突出している部分の体積よりも大きい請求項20に記載の半導体装置の製造方法。
- 第1の面上に第3の接続部材及び第4の接続部材が形成され、該第3の接続部材及び第4の接続部材が、該第1の面から順番に、下層、中層、及び上層が積層された構造を有し、該下層がニッケル、チタン、タングステン、モリブデンからなる群より選択された1つの金属で形成され、該中層が白金で形成され、該上層が金で形成されている第1の基板と、
前記該1の基板の第1の面に、第2の面が対向するように配置され、該第2の面の、前記第3の接続部材及び第4の接続部材に対向する位置にそれぞれ配置された第5の接続部材及び第6の接続部材を含み、該第5の接続部材及び第6の接続部材が、該第2の面から順番に、下層、中層、及び上層が積層された構造を有し、該下層が、ニッケル、チタン、タングステン、モリブデンからなる群より選択された1つの金属で形成され、該中層が白金で形成され、該上層が、金層と錫層とが交互に配置された積層構造を有する第2の基板と
を有し、
前記第3の接続部材の上面と前記第5の接続部材の上面とが接触して共晶化され、前記第4の接続部材の上面と前記第6の接続部材の上面とが接触して共晶化されている半導体装置。 - 前記第3の接続部材及び第4の接続部材が、下層と中層との間にさらに金層を有する請求項22に記載の半導体装置。
- 前記第5の接続部材及び第6の接続部材が、下層と中層との間にさらに金層を有する請求項22または23に記載の半導体装置。
- 前記第1の基板が、透光性基板と、該透光性基板の表面上に形成された半導体発光層とを含み、前記第3の接続部材及び第4の接続部材が、該半導体発光層にキャリアを注入するための電極である請求項22〜24のいずれかに記載の半導体装置。
- 前記第3の接続部材及び第4の接続部材の上層の厚さが200nm〜2000nmである請求項22〜25のいずれかに記載の半導体装置。
- 前記第5の接続部材及び第6の接続部材の上層を構成する金層及び錫層の各々の厚さが50nm〜200nmである請求項22〜26のいずれかに記載の半導体装置。
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Also Published As
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US7470987B2 (en) | 2008-12-30 |
JP4580633B2 (ja) | 2010-11-17 |
EP1531492A3 (en) | 2018-07-11 |
US20050104220A1 (en) | 2005-05-19 |
US20070145554A1 (en) | 2007-06-28 |
EP1531492A2 (en) | 2005-05-18 |
US7285858B2 (en) | 2007-10-23 |
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