TW457520B - Photo-semiconductor device - Google Patents
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Description
經濟部智慧財產局員工消費合作社印製 A7 B7 五、發明說明(1 ) [發明所屬之技術領域] 本發明係關於一種具有反射器的光半導體裝置,尤其 是關於一種在行動電話等的小型電子機器中,可適當採用 作為各種按鈕之背光源的光半導體裝置。 [習知之技術] 以往已知有一種具有反射器之光半導體裝置,例如發 光二極體’係如第12及13圖所示者。此種發光二極體Y 係具有長矩形狀之基板1,而此基板1,係從絕緣基材1A 之上面10介著側面11而聯繫於下面12,以做成形成有 互為電性隔離之第一電極2A及第二電極2B的構成。該 等的電極2 A、2B ’例如係在絕緣基材1A之表面形成金 屬導體層之後,將之蝕刻處理而形成者。在第一電極2A 之上面側的部分(第一上面電極部)2a上構裝有用以作為光 半導體晶片的LED晶片3,而此LED晶片3之上面30和 第二電極2B之上面側的部分(第二上面電極部)2b之間係 介著金線等的金屬線4而做電性連接β 在基板1Α之上面的部分上,安裝著形成有貫穿於上 下之内部空間50a的收容盒5,並形成上述内部空間50a 內從谷有LED晶片3或金屬線4的態樣。内部空間50a, 係由形成圓錐内面狀之收容盒5的内壁面所規定,於 其内。卩充填有環氧樹脂等透光性較高的樹脂而形成透光部 5〇。又,在此收容盒5之内壁面5a上,利用濺鍍法或蒸 鍍法等的手段形成有金屬膜5b。亦即,金屬膜5b係構成 反射器(reflector),而從LED晶片出射之光的一係在 (請先閱讀背面之注意事項再填寫本頁) 1!丨訂---------線—/ 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公楚) 1 3109S2 經濟部智慧財產局員工消費合作社印製 457520 Α7 Β7 五、發明說明(2 ) 金屬膜5b之表面上反射,且由透先部50出射。 [發明所欲解決之問題] 包含有上述之發光二極艘Y的光半導趙裝置,已在 行動電話等的小型電子機器中,廣泛作為各種按鈕的背光 源。然而’要作成按鈕者則多採用平面形狀為—方向較長 之諸如長矩形狀或橢®形狀的形狀者另一方面,在發光 二極體Y(光半導體裝置)中,收容盒5之反射器5b的橫 載面形狀係形成圓形狀’而圓柱狀之光束係由透光部5〇 出射者。 因而,在一個發光二極體γ(光半導體裝置)中,要整 艘以較高的照明度來照明一方向形成較長之形狀的按鈕係 很困難的,為了避免此種不妥情形,而有必要對一個按紐 同時使用複數個發光二極體Y(光半導體裝置),如此就不 利於成本。 本發明係基於上述之情事而思及創作者,其課題在於 提供一種即使為於一方向形成較長形狀之按鈕,亦可整體 以較高的照明度予以照明的光半導體裝置。
[發明之揭示J 為了解決上述問題,本發明採用如下之技術手段。亦 即’本發明所提供的光半導艎裝置,係包含有:基板,於 表面形成有第一電極及第二電極;光半導體晶片,以電性 導通於上述第一電極及第二電極之各個上的狀態構裝在上 述基板上;收容盒,具有貫穿於上下的内部空間,且於該 内部空間内收容上述光半導艎晶片;以及反射器,具有較 令紙诋坟沒通用中國國家標準(CNS)A4規格(21〇 χ 2耵公藿) 310982 ----------------------訂---------線--y--------^------------------ (請先閱讀背面之注意事項再填寫本頁) 457 5 2〇 A7 B7 經 濟 部 智 慧 財 產 局 員 工 消 費 合 作 社 印 製 五、發明說明(3 ) 高的光反射率,同時形成包圍住上述光半導體晶片;其特 徵為:上述反射器之橫截面形狀,係形成一方向較長的形 狀’例如橢圓形狀、長圓形狀、菱形之形狀、以及長矩形 狀。 上述構成中,由於上述反射器之橫戴面形狀,係形成 —方向較長的形狀,所以上述光半導體裝置可射出在平面 上向一方向擴展的光。因而,在將光半導體裝置當作電子 機器中之按鈕用的背光源來使用時,即使按鈕形成一方向 較長的形狀’亦可整體以較高的照明度予以照明按鈕。藉 此*就沒有必要使用複數個光半導體裝置來照明按鈕之整 體’而有利於成本。 在較佳的實施形態中,上述反射器之橫截面形狀,係 形成二次曲線狀。 亦即’上述構成中,由於反射器之縱截面形狀係形成 二次曲線狀,所以在反射器反射的光,不會那麼地平面分 散而會長長地擴展於一方向上’且會以均等化的光射出。 因而,可有效率地利用由光半導體晶片所發出的光,且可 確實地照明按紐之整體。 另外,反射器亦可利用白色樹脂來形成收容盒,且可 當作為其内壁面’也可在收容盒之内壁面上利用金屬或白 色樹脂形成光反射膜,以將該光反射膜當作反射器來構 成。 本發明之其他的特徵及優點,參照附圖及依如下所進 行之詳細說明即可更加明白。 _本紙張尺度適用中國國家標準(CNS)A4規格⑽x Z97公楚) ------U------,2 • ϋ 1— ϋ n n 訂---------線 — ^-------------------:-------- > ·- (請先閱讀背面之注意事項再填寫本頁) · 4B7520 •‘ A7
in------------ (請^閱讀背面之注意事項再填窝本頁) 1 ;線· ΰ . ι^^'ϊ' 457520 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明說明(5 ) 等。 如第2及5圖所示’第一電極2A及第二電極2B, 係分別從絕緣基材1A之上面1 〇介著侧面11聯繫於下面 12。在設於基板1之上面側的第一電極2A之部分(第一 上面電極部)2a上’形成有朝第二電極2B侧延伸的晶粒 黏合(die bonding)區域20a ’在此晶粒黏合區域20a上介 著銀糊等構裝LED晶片3。另一方面,在設於基板1之 上面側的第二電極2B之部分(第二上面電極部)2¾上,形 成有朝第一電極2A側延伸的金屬線黏合(wire b〇nding)區 域20b ’在此金屬線黏合區域2〇b和LED晶片3之上面30 之間係以金線等的金屬線4電性連接。 另外,各電極2A、2B,係在絕緣基材1A之表面上 形成鋼或鎳等的金屬導體層之後,對之蝕刻處理以互為隔 離开>成,通常係在各電極2A、2B之表面上,利用電解電 鍍等的手法施予鍍金,藉此形成不易氧化且與金屬線4之 連接力大之黏合規格的電極。 收谷盒5’係由例如聚碳酸酯中含有氧化鈦之光反射 率尚且白色系的樹脂等所形成,内壁面5a本身係形成光 反射率優的面,以構成反射器。此内壁面(反射器)5a,係 如第2圖所示,以平面視之(橫截面)形成橢圓形狀。如第 3及4圖所示,在縱裁面中形成二次曲線狀。因而,在收 谷盒5之收容空間50a上充填樹脂而形成的透光部5〇 , 其縱戴面形狀也是形成二次曲線狀& _此種的收容盒5及透光部50,係形成如下。例如在 本紙張&度翻+ _家鮮(CNS>A4祕(21G 公釐)------ 5 310982 (請先閱續背面之注意事項再填寫本頁) 訂. --線_ 457520 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明說明(6 ) 利用轉移鑄模法(transfer molding)等的樹脂成形而另外形 成收容盒5之後,將此安裝在構裝有LED晶片3且黏合 有金屬線4的基板1上,進而在收容盒5之收容空間50a 内藉由利用灌填法(potting)等的手法充填樹脂而形成透光 部50 又’亦可在基板1上載置收容盒5的狀態下利用 轉移鑄模法等形成透光部5 0。 在上述構成之發光二極體X中,由於收容盒5之内 壁面5a係形成光反射率較高的面(反射器),所以來自led 晶片3之光的一部分就會在内壁面5a上反射而從透光部 50射出。此時’由於内壁面(反射器)5a,係從平面觀之(橫 截面)形成橢圓形狀’所以在平面中射出向一方向(橢圓之 長軸方向)擴展的光。因此,本實施形態之發光二極體χ, 即使在使用作為一方向形成較長形狀之按鈕的背光源時, 亦可以較高的照明度來照明按鈕整體,且沒有必要同時使 用複數個發光二極體X以照明按鈕整體。又,由於内壁 面5a,在縱戴面中係形成二次曲線狀,所以無須使來自 LED晶片3的光完全地平面分散而可以在一方向上較長, 1均等化的光來射出。 另外,在本實施形態中,雖然收容盒5本身係由光反 射率較高的白色樹脂所形成,而收容盒5之内壁面化係 形成反射器,但是反射器亦可採用第5圖所示的構成。亦 即,可在收容盒5之内壁面5a内,將光反射率較高的金 屬等利用濺鍍法或蒸鍍法形成光反射膜6b,且將之當作 反射器。 --------------___ (請先閱讀背面之注意事項再填寫本頁) 訂·- 線
US 本紙張尺度刺巾關家標準(CNSU4規格(210 X 297 6 310982 ^57520 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明說明(7 ) 又’在上述實施形態中’收容盒5之内壁面(反射器) 的平面(橫截面)形狀雖係形成橢圓形狀,但是若為一方向 較長的形狀的話則由於可享受同樣的效果,所以亦可為第 6圖所示之長圓形狀、第7圖所示之菱形之形狀、或是第 8圖所示之長矩形狀。 再者,在上述實施形態中,雖係就採用LED晶片3 作為光半導體晶片以構成發光二極體(LED)X的光半導體 裝置來加以說明,但是光半導體晶片亦可採用LD(雷射二 極體)晶片。LD晶片由於在其上面形成有二個電極,所以 與上述之實施形態不同,以第9至11圖所示之狀態構裝 在基板1上。亦即,LD晶片3A,係如第9圖所示,將LD 晶片3A之各電極3a、3b,以導體4A、4B直接與基板1 之第一及第二電極2A、2B相連接,或是如第10及π圖 所示’將LD晶片3A之各電極3a、3b,以二條金屬線4a ' 4b分別與基板1之第一及第二電極2A、2B相連接。另 外’第10圖係顯示LD晶片3A直接構裝在第一電極2A 上之例’第U圖係顯示構裝在絕緣基材1A之表面(基板 1上未形成有第一及第二電極2A、2B的部分)上之例。 [圖式之簡單說明] 第1圖顯示本發明光半導體裝置之一例之發光二極體 的整體斜視圖。 第2圖為苐1圖之發光二極體的平面圖。 第3圖為沿著第2圖之III-III線的截面圖。 第4圖為沿著第2圖之IV-IV線的截面圖。
(210 X 297 ST 7 310982 (ϋ *1 I n n n I n n ϋ · I I (請先閱讀背面之注意事項再填寫本頁} 訂· 線· 45753〇 A7
五、 面阖 發明說明G ) 第5圖為說明本發明半導體裝置之另一實施形態的平 6圖為說明本發明半導體裝置之其他實施形態的平 〇 $ 7圖為說明本發明半導體裝置之更另一實施形態的 第8圖為說明本發明半導體裝置之更另一實施形態的 _。 第9圖為說明本發明半導體裝置之更另—實施形態的 ---I----I---- I I (請先閱讀背面之注意事項再填寫本頁) 的平 1〇圖為說明本發明半導體裝置之更另一實 面圖 施形態 訂 的平 U圖為說明本發明半導體裝置之更另一實施形 面圖 態 圖 經濟部智慧財產局員Η消費合作社印製 8 第12圖顯示習知央皁導_魏獎罟夕_ 的盤 九牛導體裒置之一例之發光二極 蹩體斜視 [元件1L3圖為沿著第12圖之ΧΙΙοαι線的截面圖 1千編戚說明] 發先二極體(光半導體裝置之一例) :板 2Α第-電極 ιβ第二電極 3 (作為光半導體晶片之)LED晶片 3A LD晶片 5收容盒 5a (收容盒之)内壁面 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐〉 310982
Claims (1)
- 45752〇 附 件第88121534號專利申請案 申請專利範圍修正本 ^ %:_ g 1·.听 仏提 o之(90年4月20曰) 一種光半導體裝置,包含有:基板,於表面形成有第 一電極及第二電極;光半導體晶片,以電性導通於上 述第一電極及第二電極之各個上的狀態構裝在上述基 板上;枚容盒,具有貫穿於上下的内部空間,且於該 内部空間内收容上述光半導體晶片;及反射器,具有 較高的光反射率,同時形成包園住上述光半導體晶片 其特徵為:上述反射器之橫截面形狀係形成—方 向較長的形狀。 經 濟 部 中 央 標 準 局 員 工•如申請專利範圍第1項之光半導體裝置,其中,上述 反射器之橫截面形狀係形成橢阖形狀、長圓形狀、菱 开>之形狀或是長矩形狀。 3.如申請專利範園第1項之光半導體裝置,其中,上述 反射器之橫截面形狀,係形成二次曲線狀。 4,如申請專利範圍第1項之光半導體裝置,其中,上述 收容盒係由白色樹脂所形成,同時其内壁面係形成上 述反射器者。 5-如申請專利範圍第1至4項中任一項之光半導體裝置, 其中’上述收容盒之内壁面上係利用金屬或白色樹脂 形成光反射膜,而該光反射膜係形成上述反射器者。 本紙張尺度通用中國國家標準(CNS )A4蜆格(210 X 297公楚) 1 310982
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| JP35707498A JP2000183407A (ja) | 1998-12-16 | 1998-12-16 | 光半導体装置 |
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| EP (1) | EP1011151B1 (zh) |
| JP (1) | JP2000183407A (zh) |
| KR (1) | KR100708034B1 (zh) |
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-
1998
- 1998-12-16 JP JP35707498A patent/JP2000183407A/ja active Pending
-
1999
- 1999-12-09 KR KR1019990056036A patent/KR100708034B1/ko not_active Expired - Fee Related
- 1999-12-09 TW TW088121534A patent/TW457520B/zh active
- 1999-12-15 EP EP99310103A patent/EP1011151B1/en not_active Expired - Lifetime
- 1999-12-15 US US09/464,515 patent/US6355946B1/en not_active Expired - Lifetime
- 1999-12-15 DE DE69937137T patent/DE69937137T2/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP1011151B1 (en) | 2007-09-19 |
| DE69937137D1 (de) | 2007-10-31 |
| DE69937137T2 (de) | 2008-01-10 |
| KR100708034B1 (ko) | 2007-04-16 |
| US6355946B1 (en) | 2002-03-12 |
| EP1011151A3 (en) | 2001-08-01 |
| EP1011151A2 (en) | 2000-06-21 |
| JP2000183407A (ja) | 2000-06-30 |
| KR20000048017A (ko) | 2000-07-25 |
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