JP5753446B2 - 半導体発光装置の製造方法 - Google Patents
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Description
図1は、第1の実施形態に係る半導体発光装置1を例示する斜視図である。半導体発光装置1は、発光素子14と、第1のフレームであるリードフレーム11と、第2のフレームであるリードフレーム12と、樹脂パッケージ18と、を備える。
図7(a)〜図8(c)は、第2の実施形態に係る半導体発光装置4の製造過程を模式的に例示する断面図である。図8(c)に示すように、本実施形態に係る半導体発光装置4では、第1の樹脂19aの外縁とリードフレーム11および12の端面が第2の樹脂19bにより覆われる点で、第1の実施形態に係る半導体発光装置1〜3と相違する。
図9は、第3の実施形態に係る半導体発光装置5を例示する斜視図である。同図に示すように、半導体発光装置5では、前述の第1の実施形態に係る半導体発光装置1〜4と比較して、LED14aおよび14bが、上下導通型の構造である点が相違する。
図10は、第4の実施形態に係る半導体発光装置6を例示する斜視図である。図11(a)〜(d)は、半導体発光装置6の詳細な構造を例示する模式図である。
(2−x−y)SrO・x(Bau,Cav)O・(1−a−b−c−d)SiO2・aP2O5bAl2O3cB2O3dGeO2:yEu2+
但し、0<x、0.005<y<0.5、x+y≦1.6、0≦a、b、c、d<0.5、0<u、0<v、u+v=1である。
(RE1−xSmx)3(AlyGa1−y)5O12:Ce
但し、0≦x<1、0≦y≦1、REはYおよびGdから選択される少なくとも1種の元素である。
(M1−x,Rx)a1AlSib1Oc1Nd1
但し、MはSiおよびAlを除く少なくとも1種の金属元素であり、特に、CaおよびSrの少なくとも一方であることが望ましい。Rは発光中心元素であり、Euが望ましい。x、a1、b1、c1、d1は、0<x≦1、0.6<a1<0.95、2<b1<3.9、0.25<c1<0.45、4<d1<5.7である。このようなサイアロン系の赤色蛍光体の具体例を以下に示す。
Sr2Si7Al7ON13:Eu2+
(M1−x,Rx)a2AlSib2Oc2Nd2
但し、MはSiおよびAlを除く少なくとも1種の金属元素であり、CaおよびSrの少なくとも一方が望ましい。Rは発光中心元素であり、Euが望ましい。ここで、x、a2、b2、c2、d2は、0<x≦1、0.93<a2<1.3、4.0<b2<5.8、0.6<c2<1、6<d2<11である。このようなサイアロン系の緑色蛍光体の具体例を以下に示す。
Sr3Si13Al3O2N21:Eu2+
図14は、第5の実施形態に係る半導体発光装置7を例示する斜視図である。同図に示すように、半導体発光装置7では、前述の第4の実施形態に係る半導体発光装置6(図13参照)と比較して、樹脂パッケージ18における第1の樹脂19aおよび第2の樹脂19bの配置が相違する。
図15〜図17は、第6の実施形態に係る半導体発光装置8を例示する模式図である。図15は、半導体発光装置8を示す斜視図である。図16(a)〜(d)は、半導体発光装置8の詳細な構造を例示する模式図である。図16(a)は、Z方向から見た平面図である。図16(b)は、図16(a)に示すA−A’断面の構造を示している。図16(c)は、底面図である。図16(d)は、図16(a)に示すB−B’断面の構造を示している。図17は、半導体発光装置8のリードフレームを例示する模式図である。図17(a)は、上面図であり、図17(b)は、図17(a)に示すC−C’断面であり、図17(c)は、図17(a)に示すD−D’断面図である。
図18は、第7の実施形態に係る半導体発光装置9を例示する斜視図である。図19(a)〜(c)は、半導体発光装置9の詳細な構造を例示する模式図である。図19(a)は、Z方向から見た平面図である。図19(b)は、図19(a)に示すA−A’断面の構造を示し、図19(c)は、図19(a)に示すB−B’断面の構造を示している。
図22は、第8の実施形態に係る半導体発光装置10を例示する斜視図である。図23(a)〜(c)は、半導体発光装置10の詳細な構造を例示する模式図である。図23(a)は、Z方向から見た平面図である。図23(b)は、図23(a)に示すA−A’断面の構造を示し、図23(c)は、図23(a)に示すB−B’断面の構造を示している。
Claims (6)
- 発光素子が固着された第1のフレームと、前記第1のフレームから離間して配置され、前記発光素子の電極と金属ワイヤで接続された第2のフレームと、前記発光素子と前記第1のフレームと前記第2のフレームとを覆う樹脂パッケージと、を有する半導体発光装置の製造方法であって、
複数の前記第1のフレームと、複数の前記第2のフレームと、が交互に配置された金属プレートの表面に、前記発光素子と前記第1のフレームと前記第2のフレームとを覆う第1の樹脂を成形する工程と、
前記第1の樹脂が形成された前記表面とは反対側の前記金属プレートの裏面から、前記金属プレートおよび前記第1の樹脂を切断することにより、前記第1の樹脂を含む前記樹脂パッケージの外周に沿って、前記金属プレートから前記第1の樹脂の方向に幅が狭まる溝を形成する工程と、
前記溝の内部に第2の樹脂を充填する工程と、
前記第2の樹脂を前記溝に沿って分断し、前記第1の樹脂の外縁を前記第2の樹脂で覆った前記樹脂パッケージを形成する工程と、
を備えた半導体発光装置の製造方法。 - 前記金属プレートの裏面に犠牲シートを貼着する工程と、
前記溝に充填された前記第2の樹脂を残し、前記金属プレート上に形成された前記第2の樹脂を前記犠牲シートと共に除去する工程と、
をさらに備えた請求項1記載の半導体発光装置の製造方法。 - 前記第2の樹脂は、前記発光素子が放射する光を反射する反射材を含む請求項1または2に記載の半導体発光装置の製造方法。
- 前記第1の樹脂および前記第2の樹脂は、同じ材料を含む請求項1〜3のいずれか1つに記載の半導体発光装置の製造方法。
- 前記第1の樹脂および前記第2の樹脂は、シリコーン樹脂を含む請求項1〜4のいずれか1つに記載の半導体発光装置の製造方法。
- 前記金属プレートおよび前記第1の樹脂の少なくとも一部をダイシングブレードで切断することにより前記溝を形成する請求項1〜5のいずれか1つに記載の半導体発光装置の製造方法。
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R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |