JP2013138072A - 半導体装置とその製造方法 - Google Patents
半導体装置とその製造方法 Download PDFInfo
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- JP2013138072A JP2013138072A JP2011287732A JP2011287732A JP2013138072A JP 2013138072 A JP2013138072 A JP 2013138072A JP 2011287732 A JP2011287732 A JP 2011287732A JP 2011287732 A JP2011287732 A JP 2011287732A JP 2013138072 A JP2013138072 A JP 2013138072A
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- film
- insulating film
- semiconductor device
- capacitor
- upper electrode
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Abstract
【解決手段】半導体基板1と、半導体基板1の上に形成された第1の絶縁膜12と、第1の絶縁膜12の上に形成され、下部電極20、キャパシタ誘電体膜21a、及び上部電極22aを順に積層してなるキャパシタQと、キャパシタQの上に形成され、平面視で上部電極22aの全領域を含むホール29aを備えた第2の絶縁膜29と、ホール29a内に形成されたタングステンを含む導体プラグ33とを有する半導体装置による。
【選択図】図14
Description
前述のように医療分野、原子力発電所、及び宇宙空間で使用される半導体装置は高エネルギのガンマ線に曝される。半導体装置の使用状況下にもよるが、100kGr程度の非常に高いエネルギのガンマ線に耐えることができれば、ガンマ線を扱う大半の分野において半導体装置を使用することができると考えられる。
a:隣接する上部電極22aの下面同士の間隔
b:上部電極22aの下面と第1の導体プラグ33の上面との間隔
c:隣接するタングステン膜32bの上面同士の間隔
d:隣接するタングステン膜32bの下面同士の間隔
e:タングステン膜32bの下面とその上面との間隔
なお、図21においては半導体装置の一部においてのみ寸法aを付しているが、半導体装置の各部は設計ルールに従って規則的に配置されるため、寸法aは半導体装置の任意の部位において全て同一の値を有する。これについては他の寸法b〜eについても同様である。
なお、式(1)の導出にあっては、上部電極22aと第1の導体プラグ33の各々の重心が一致しているものとし、第1の導体プラグ33のタングステン膜32bが上部電極22aの横に(a-d)/2だけはみ出るものとした。
式(2)のθ1について算出するため、図22(b)の直角三角形を考える。図22(b)は、高さが前述の間隔eに等しく、斜辺がガンマ線γにより形成される直角三角形を示す図である。
この式を式(2)に代入すると、次の式(4)が得られる。
つまり、上部電極22aの直下のキャパシタ誘電体膜21aがガンマ線γに曝されないようにするには、式(4)が成立するように半導体装置を設計すればよいことになる。
ところで、ガンマ線を更に効果的に遮るには、第1の導体プラグ33の上方の広範な領域にタングステンを材料とする遮蔽体を設けるのも有効である。
L1:隣接する二つのタングステン膜85bの配列ピッチ
L2:タングステン膜85bの上面の幅
L3:タングステン膜85bの上面の端部E3と、タングステン膜32bの下面の端部E2との基板の横方向の間隔
h:上部電極22aの下面からタングステン膜85bの下面までの基板の法線方向の間隔
hw:タングステン膜85bの下面と上面との間隔
このような断面構造を有する半導体装置では、キャパシタ誘電体膜21aに前述の二つのガンマ線γ3、γ4が入射する。
tanθ2=(L3-L2+(a-d)/2)/(h+hw)・・・(6)
また、既述の式(2)と同じ理由により、Xが0となるには、次の式(7)が成立する必要がある。
式(6)を式(7)に代入することにより、次の式(8)が得られる。
すなわち、ガンマ線γ3が、上部電極22aの直下のキャパシタ誘電体膜21aに入射しないようにするには、式(8)が成立すればよいことになる。
tanθ2=(L1+L3-L2+(a-d)/2)/(h+hw)・・・(9)
また、既述の式(2)と同じ理由により、Xが0となるには、次の式(10)が成立する必要がある。
式(9)を式(10)に代入することにより、次の式(11)が得られる。
すなわち、ガンマ線γ4が、上部電極22aの直下のキャパシタ誘電体膜21aに入射しないようにするには、式(11)が成立すればよいことになる。
第1実施形態では、第1の導体プラグ33によるガンマ線等の放射線の遮蔽効果について説明した。上部電極22aよりも大きい第1の導体プラグ33には、このように放射線を遮蔽する役割の他に、キャパシタ誘電体膜21aに印加されるストレスを均一にする役割も担う。本実施形態ではその効果について説明する。
第1実施形態では、半導体装置としてプレーナ型のFeRAMを製造した。これに対し、本実施形態では、プレーナ型よりも微細化に有利なスタック型のFeRAMを半導体装置として製造する。
とする条件でRTAを行う。これにより、下地絶縁膜50の材料であるチタンが窒化して(111)方向に配向した窒化チタンとなる
なお、窒素雰囲気に希ガスを添加してこのRTAを行ってもよい。
第3実施形態では、アルミニウム膜を含む金属積層膜から一層目金属配線95aを形成した。
前記半導体基板の上に形成された第1の絶縁膜と、
前記第1の絶縁膜の上に形成され、下部電極、キャパシタ誘電体膜、及び上部電極を順に積層してなるキャパシタと、
前記キャパシタの上に形成され、平面視で前記上部電極の全領域を含むホールを備えた第2の絶縁膜と、
前記ホール内に形成されたタングステンを含む導体プラグと、
を有することを特徴とする半導体装置。
前記凹部内に銅配線が形成されたことを特徴とする付記1乃至付記4のいずれかに記載の半導体装置。
前記銅配線は、前記凹部と前記配線溝に形成されたことを特徴とする付記5に記載の半導体装置。
前記開口は前記素子分離絶縁膜の上に形成されたことを特徴とする付記8に記載の半導体装置。
前記酸化防止絶縁膜の上に前記キャパシタが形成されたことを特徴とする付記8又は付記9に記載の半導体装置。
前記不純物拡散領域の上の前記第1の絶縁膜に埋め込まれ、前記不純物拡散領域と電気的に接続されたコンタクトプラグと、
前記第1の絶縁膜の上に形成され、平面視で前記下部電極の全領域を含む開口を前記コンタクトプラグの上に備えた層間絶縁膜と、
前記開口内に埋め込まれ、前記コンタクトプラグと前記下部電極とに電気的に接続されたタングステンを含む導体とを更に有することを特徴とする付記1乃至付記7に記載の半導体装置。
前記導電膜の上に前記キャパシタが形成されたことを特徴とする付記11に記載の半導体装置。
前記キャパシタの直下の第1の上面と、
前記第1の上面と繋がり、かつ、前記下部電極の側面と同一面内にある側面と、
前記側面と繋がり、かつ、基板横方向に延在する第2の上面とを有することを特徴とする付記12に記載の半導体装置。
隣接する前記キャパシタのうちの一方が備える前記上部電極の直下のキャパシタ誘電体膜に向けて入射する放射線が、他方の前記キャパシタの上の前記導体プラグによって遮られることを特徴とする付記1乃至付記13のいずれかに記載の半導体装置。
隣接する前記キャパシタの各々の前記上部電極の下面同士の間隔をa、前記上部電極の下面と前記導体プラグの上面との間隔をb、隣接する前記導体プラグの各々の下面同士の間隔をd、前記導体プラグの上面と下面との間隔をeとしたとき、前記キャパシタ誘電体膜に入射し得る放射線のうち、入射角が最大の該放射線の入射角の正接が値(a-d)/(2(b-e))に等しいことを特徴とする付記14に記載の半導体装置。
前記上部電極の直下の前記キャパシタ誘電体膜に向けて入射する放射線が、前記遮蔽体によって遮られることを特徴とする付記1乃至付記13のいずれかに記載の半導体装置。
前記半導体基板の上に、少なくとも前記第2の絶縁膜の上面に達する高さを有し、かつ、平面視で前記セル領域を囲うタングステンを含む導体リングが設けられたことを特徴とする付記1乃至付記18のいずれかに記載の半導体装置。
前記第1の絶縁膜の上に、下部電極、キャパシタ誘電体膜、及び上部電極を順に積層してなるキャパシタを形成する工程と、
前記キャパシタを覆う第2の絶縁膜を形成する工程と、
前記第2の絶縁膜をパターニングすることにより、該第2の絶縁膜に、平面視で前記上部電極の全領域を含むホールを形成する工程と、
前記ホール内に、前記上部電極と電気的に接続されたタングステンを含む導体プラグを形成する工程と、
を有することを特徴とする半導体装置の製造方法。
Claims (10)
- 半導体基板と、
前記半導体基板の上に形成された第1の絶縁膜と、
前記第1の絶縁膜の上に形成され、下部電極、キャパシタ誘電体膜、及び上部電極を順に積層してなるキャパシタと、
前記キャパシタの上に形成され、平面視で前記上部電極の全領域を含むホールを備えた第2の絶縁膜と、
前記ホール内に形成されたタングステンを含む導体プラグと、
を有することを特徴とする半導体装置。 - 平面視したときに、前記ホールの重心と前記上部電極の重心とが一致することを特徴とする請求項1に記載の半導体装置。
- 平面視したときに、前記ホールの形状は、前記上部電極の形状と相似であることを特徴とする請求項1又は請求項2に記載の半導体装置。
- 前記キャパシタの下の前記第1の絶縁膜に、平面視で前記下部電極の全領域を含む開口が形成されて、該開口内にタングステンを含む導体が埋め込まれたことを特徴とする請求項1乃至請求項3のいずれか1項に記載の半導体装置。
- 前記半導体基板に形成された不純物拡散領域と、
前記不純物拡散領域の上の前記第1の絶縁膜に埋め込まれ、前記不純物拡散領域と電気的に接続されたコンタクトプラグと、
前記第1の絶縁膜の上に形成され、平面視で前記下部電極の全領域を含む開口を前記コンタクトプラグの上に備えた層間絶縁膜と、
前記開口内に埋め込まれ、前記コンタクトプラグと前記下部電極とに電気的に接続されたタングステンを含む導体とを更に有することを特徴とする付記1乃至付記3のいずれか1項に記載の半導体装置。 - 前記キャパシタと前記導体プラグの各々が複数設けられ、
隣接する前記キャパシタのうちの一方が備える前記上部電極の直下のキャパシタ誘電体膜に向けて入射する放射線が、他方の前記キャパシタの上の前記導体プラグによって遮られることを特徴とする請求項1乃至請求項5のいずれか1項に記載の半導体装置。 - 前記キャパシタの横の前記第2の絶縁膜にタングステンを含む別の導体プラグが設けられ、前記上部電極の直下の前記キャパシタ誘電体膜に向けて入射する放射線が、前記別の導体プラグによって遮られることを特徴とする請求項1乃至請求項5のいずれか1項に記載の半導体装置。
- 前記第2の絶縁膜の上方に形成されたタングステンを含む遮蔽体を更に有し、
前記上部電極の直下の前記キャパシタ誘電体膜に向けて入射する放射線が、前記遮蔽体によって遮られることを特徴とする請求項1乃至請求項5のいずれか1項に記載の半導体装置。 - 前記半導体基板は、前記キャパシタが複数形成されたセル領域を有し、
前記半導体基板の上に、少なくとも前記第2の絶縁膜の上面に達する高さを有し、かつ、平面視で前記セル領域を囲うタングステンを含む導体リングが設けられたことを特徴とする請求項1乃至請求項8のいずれか1項に記載の半導体装置。 - 半導体基板の上に第1の絶縁膜を形成する工程と、
前記第1の絶縁膜の上に、下部電極、キャパシタ誘電体膜、及び上部電極を順に積層してなるキャパシタを形成する工程と、
前記キャパシタを覆う第2の絶縁膜を形成する工程と、
前記第2の絶縁膜をパターニングすることにより、該第2の絶縁膜に、平面視で前記上部電極の全領域を含むホールを形成する工程と、
前記ホール内に、前記上部電極と電気的に接続されたタングステンを含む導体プラグを形成する工程と、
を有することを特徴とする半導体装置の製造方法。
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019186473A (ja) * | 2018-04-16 | 2019-10-24 | エイブリック株式会社 | 半導体装置及びその製造方法 |
JP7107461B1 (ja) * | 2021-10-15 | 2022-07-27 | 三菱電機株式会社 | 耐放射線性半導体装置及びその製造方法 |
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KR101416423B1 (ko) | 2013-07-01 | 2014-07-08 | 현대자동차 주식회사 | 차량용 자동변속기의 유성기어트레인 |
US11296116B2 (en) * | 2019-12-26 | 2022-04-05 | Taiwan Semiconductor Manufacturing Co., Ltd. | Semiconductor device and method of forming the same |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0498875A (ja) * | 1990-08-17 | 1992-03-31 | Sony Corp | 半導体メモリ |
JPH07226444A (ja) * | 1994-02-14 | 1995-08-22 | Texas Instr Japan Ltd | キャパシタ、電極又は配線構造、及び半導体装置 |
JPH1098162A (ja) * | 1996-09-20 | 1998-04-14 | Hitachi Ltd | 半導体集積回路装置の製造方法 |
JP2001111007A (ja) * | 1999-09-10 | 2001-04-20 | Samsung Electronics Co Ltd | キャパシタ保護膜を含む半導体メモリ素子及びその製造方法 |
JP2002094021A (ja) * | 2000-09-18 | 2002-03-29 | Fujitsu Ltd | 半導体装置及びその製造方法 |
JP2006049795A (ja) * | 2004-06-28 | 2006-02-16 | Fujitsu Ltd | 半導体装置及びその製造方法 |
JP2007067066A (ja) * | 2005-08-30 | 2007-03-15 | Toshiba Corp | 半導体装置とその製造方法 |
WO2007083366A1 (ja) * | 2006-01-18 | 2007-07-26 | Fujitsu Limited | 半導体装置、半導体ウエハ構造、及び半導体ウエハ構造の製造方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05343617A (ja) | 1992-06-12 | 1993-12-24 | Toshiba Corp | 半導体記憶装置 |
JP2002141482A (ja) | 2000-11-07 | 2002-05-17 | Sanyo Electric Co Ltd | 半導体装置およびその製造方法 |
KR100500938B1 (ko) * | 2000-12-30 | 2005-07-14 | 주식회사 하이닉스반도체 | 캐패시터 제조 방법 |
WO2007066400A1 (ja) | 2005-12-08 | 2007-06-14 | Fujitsu Limited | 半導体装置 |
JP5212358B2 (ja) * | 2007-03-14 | 2013-06-19 | 富士通セミコンダクター株式会社 | 半導体装置の製造方法 |
JP2008294194A (ja) * | 2007-05-24 | 2008-12-04 | Seiko Epson Corp | 強誘電体キャパシタの製造方法及び強誘電体キャパシタ |
JP2009071242A (ja) * | 2007-09-18 | 2009-04-02 | Seiko Epson Corp | 半導体装置及びその製造方法 |
-
2011
- 2011-12-28 JP JP2011287732A patent/JP5862290B2/ja not_active Expired - Fee Related
-
2012
- 2012-11-28 US US13/687,715 patent/US8772847B2/en not_active Expired - Fee Related
- 2012-12-13 KR KR1020120145157A patent/KR101420531B1/ko active IP Right Grant
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0498875A (ja) * | 1990-08-17 | 1992-03-31 | Sony Corp | 半導体メモリ |
JPH07226444A (ja) * | 1994-02-14 | 1995-08-22 | Texas Instr Japan Ltd | キャパシタ、電極又は配線構造、及び半導体装置 |
JPH1098162A (ja) * | 1996-09-20 | 1998-04-14 | Hitachi Ltd | 半導体集積回路装置の製造方法 |
JP2001111007A (ja) * | 1999-09-10 | 2001-04-20 | Samsung Electronics Co Ltd | キャパシタ保護膜を含む半導体メモリ素子及びその製造方法 |
JP2002094021A (ja) * | 2000-09-18 | 2002-03-29 | Fujitsu Ltd | 半導体装置及びその製造方法 |
JP2006049795A (ja) * | 2004-06-28 | 2006-02-16 | Fujitsu Ltd | 半導体装置及びその製造方法 |
JP2007067066A (ja) * | 2005-08-30 | 2007-03-15 | Toshiba Corp | 半導体装置とその製造方法 |
WO2007083366A1 (ja) * | 2006-01-18 | 2007-07-26 | Fujitsu Limited | 半導体装置、半導体ウエハ構造、及び半導体ウエハ構造の製造方法 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019186473A (ja) * | 2018-04-16 | 2019-10-24 | エイブリック株式会社 | 半導体装置及びその製造方法 |
JP7107461B1 (ja) * | 2021-10-15 | 2022-07-27 | 三菱電機株式会社 | 耐放射線性半導体装置及びその製造方法 |
WO2023062826A1 (ja) * | 2021-10-15 | 2023-04-20 | 三菱電機株式会社 | 耐放射線性半導体装置及びその製造方法 |
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