JP3910171B2 - 半導体発光装置、その製造方法および電子撮像装置 - Google Patents
半導体発光装置、その製造方法および電子撮像装置 Download PDFInfo
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- JP3910171B2 JP3910171B2 JP2003419433A JP2003419433A JP3910171B2 JP 3910171 B2 JP3910171 B2 JP 3910171B2 JP 2003419433 A JP2003419433 A JP 2003419433A JP 2003419433 A JP2003419433 A JP 2003419433A JP 3910171 B2 JP3910171 B2 JP 3910171B2
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Description
また、光を発することによって半導体発光素子に発生した熱はリードフレームへと伝わる。しかし、リードフレームの各々は異なる方向に延在しているため、熱が伝わる方向を分散することができる。これにより、半導体発光素子に発生する熱をリードフレームから効率良く放出することができる。
また、青および緑で発光する半導体発光素子と赤で発光する半導体発光素子とを比較した場合、青および緑で発光する半導体発光素子の方が発熱量が大きい。したがって、このように構成された半導体発光装置によれば、異なる色で発光する半導体発光素子から生じた熱を、リードフレームを介して均等に放熱することができる。
図1は、この発明の実施の形態1における半導体発光装置を示す断面図である。図1を参照して、半導体発光装置は、所定のパターン形状に形成され、主表面1aを有するリードフレーム1と、主表面1a上に設けられたLEDチップ4と、LEDチップ4を覆うように主表面1a上に設けられたエポキシ樹脂6と、エポキシ樹脂6の周囲に設けられた樹脂部3とを備える。
図7は、この発明の実施の形態2における半導体発光装置を示す断面図である。図7を参照して、実施の形態2における半導体発光装置は、実施の形態1における半導体発光装置と比較して、リードフレーム1の形状が異なる。以下において、重複する構造の説明は省略する。
図8は、この発明の実施の形態3における半導体発光装置を示す断面図である。図8を参照して、実施の形態3における半導体発光装置は、実施の形態1における半導体発光装置と比較して、金線5を主表面1aおよびLEDチップ4の頂面にワイヤボンディングする形態が異なる。以下において、重複する構造の説明は省略する。
図9は、この発明の実施の形態4における半導体発光装置を示す平面図である。図9を参照して、実施の形態4における半導体発光装置では、実施の形態1から3のいずれかに記載の形態で、リードフレーム51、52および53の主表面上にLEDチップ71、72および73がそれぞれ搭載されている。
図10は、この発明の実施の形態5におけるカメラ付き携帯電話を示す透視図である。図10を参照して、カメラ付き携帯電話84は、実施の形態4において説明した半導体発光装置である半導体発光装置86を備える。
図12は、この発明の実施の形態6における半導体発光装置を示す平面図である。図13は、図12中のXIII−XIII線上に沿った側面図である。図13では、一部が断面形状で示されている。図12および図13を参照して、本実施の形態における半導体発光装置201では、実施の形態4における半導体発光装置と同様に、リードフレーム1の主表面1a上に3つのLEDチップ4が搭載されている。
Claims (18)
- 第1の領域と、前記第1の領域の周縁に沿って延在する第2の領域とが規定された主表面を有するリードフレームと、
前記第1の領域に設けられた半導体発光素子と、
前記半導体発光素子から発せられた光を透過する材料から形成され、前記半導体発光素子を完全に覆うように前記第1の領域に設けられた第1の樹脂部材と、
前記半導体発光素子から発せられた光を反射する材料から形成され、前記半導体発光素子を囲むように前記第2の領域に設けられた第2の樹脂部材と、
前記半導体発光素子の頂面に設けられた電極と、前記半導体発光素子から離間する前記主表面とを接続する金属線とを備え、
前記第1の樹脂部材は、第1の頂面を含み、
前記第2の樹脂部材は、前記主表面からの距離が前記主表面から前記第1の頂面までの距離よりも大きい位置に設けられた第2の頂面と、前記半導体発光素子が位置する側において前記主表面から離隔する方向に延在し、前記第2の頂面に連なる内壁とを含み、
前記内壁は、前記主表面からの距離が前記主表面から前記第1の頂面までの距離よりも大きい位置において、前記第1の頂面から出射した光を所定の方向に反射させ、
赤、青および緑でそれぞれ発光する3つの前記半導体発光素子と、前記半導体発光素子が1つずつ設けられ、互いに離間する3つの前記リードフレームとが設けられ、
前記リードフレームの各々は互いに異なる方向に延在し、
青および緑でそれぞれ発光する前記半導体発光素子が設けられた前記リードフレームの前記主表面の面積は、赤で発光する前記半導体発光素子が設けられた前記リードフレームの前記主表面の面積よりも大きい、半導体発光装置。 - 前記第1の樹脂部材は、前記金属線を完全に覆うように設けられている、請求項1に記載の半導体発光装置。
- 前記金属線は、前記半導体発光素子に接続される一方端と、前記主表面に接続される他方端とを有し、
前記一方端は、線状に形成されており、前記他方端は、ボール状に形成されている、請求項2に記載の半導体発光装置。 - 前記金属線は、前記半導体発光素子に接続される一方端と、前記主表面に接続される他方端とを有し、
前記一方端には、前記半導体発光素子との間で前記金属線を挟持するボール状の金属が設けられている、請求項2または3に記載の半導体発光装置。 - 前記リードフレームは、スリット状の溝によって離間した部分を含み、前記部分は他の部分の厚みよりも小さい厚みで形成されている、請求項1から4のいずれか1項に記載の半導体発光装置。
- 前記リードフレームは、同一平面上に延在する板形状に形成されている、請求項1から5のいずれか1項に記載の半導体発光装置。
- 前記リードフレームは、前記主表面と反対側の面に形成され、かつ樹脂が充填される第1の凹部を含み、前記反対側の面には、前記第1の凹部の両側に位置して実装基板に電気的に接続される端子部が設けられている、請求項6に記載の半導体発光装置。
- 前記リードフレームは、前記第1の領域に形成された第2の凹部を含み、前記半導体発光素子は前記第2の凹部に設けられている、請求項1から7のいずれか1項に記載の半導体発光装置。
- 前記リードフレームは、熱伝導率が300(W/m・K)以上400(W/m・K)以下の金属によって形成されている、請求項1から8のいずれか1項に記載の半導体発光装置。
- 前記第2の樹脂部材は、前記主表面に平行な面上において前記内壁によって規定される形状の面積が、前記主表面から離れるに従って大きくなるように形成されている、請求項1から9のいずれか1項に記載の半導体発光装置。
- 前記主表面に平行な面上において前記内壁によって規定される形状は、円形、楕円形および多角形のいずれかである、請求項1から10のいずれか1項に記載の半導体発光装置。
- 前記リードフレームは、前記主表面の周縁から突出して所定の方向に延びるリード端子を含み、前記リード端子は、前記所定の方向に延びる先端に端面が形成された先端部と、前記主表面の周縁と前記先端部との間に位置する基部とを有し、
前記リード端子は、前記端面の面積が、前記端面に平行な平面における前記基部の断面積よりも小さくなるように形成されている、請求項1から11のいずれか1項に記載の半導体発光装置。 - 前記リード端子は、前記基部で第1の幅を有し、前記先端部で前記第1の幅よりも小さい第2の幅を有する、請求項12に記載の半導体発光装置。
- 前記端面は、所定の切断用工具によって形成された切断面である、請求項12または13に記載の半導体発光装置。
- 前記第2の樹脂部材は、ポリアミド系樹脂である、請求項1から14のいずれか1項に記載の半導体発光装置。
- 前記内壁の表面にめっきが施されている、請求項1から15のいずれか1項に記載の半導体発光装置。
- 請求項14に記載の半導体発光装置の製造方法であって、
複数の前記半導体発光装置が形成されたリードフレーム基材を準備する工程と、
前記リードフレーム基材を前記先端部で切断することによって、前記リードフレーム基材から複数の前記半導体発光装置を切り出す工程とを備える、半導体発光装置の製造方法。 - 請求項1から16のいずれか1項に記載の半導体発光装置を備える電子撮像装置であって、
前記半導体発光装置から50cm隔てた位置に、縦60cm、横50cmの大きさを有する矩形形状の基準面を設けた場合に、前記半導体発光装置から前記基準面の中心に向けて光が照射された時、前記基準面の四隅における照度は、前記基準面の中心における照度の50%以上である、電子撮像装置。
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KR20040074613A (ko) | 2004-08-25 |
US20040159850A1 (en) | 2004-08-19 |
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