TWI377706B - Mount for semiconductor light emitting device - Google Patents
Mount for semiconductor light emitting device Download PDFInfo
- Publication number
- TWI377706B TWI377706B TW093122563A TW93122563A TWI377706B TW I377706 B TWI377706 B TW I377706B TW 093122563 A TW093122563 A TW 093122563A TW 93122563 A TW93122563 A TW 93122563A TW I377706 B TWI377706 B TW I377706B
- Authority
- TW
- Taiwan
- Prior art keywords
- layer
- conductive
- base
- region
- semiconductor light
- Prior art date
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Classifications
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- H—ELECTRICITY
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/62—Arrangements for conducting electric current to or from the semiconductor body, e.g. lead-frames, wire-bonds or solder balls
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
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- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Led Device Packages (AREA)
Description
1377706 九、發明說明: 【發明所屬之技術領域】 本發明係關於一種用於諸如發光二極體之覆晶架構半導 體發光裝置之底座。 【先前技術】 ▲發光二極體(LED)係具有多重優勢之固態光源。其能夠可 靠地提供高亮度光,因而其尤其可應用於顯示器、交通燈 及指示器中。發光二極體之-重要類別由1多種第職 元素(如鎵、銦或鋁)及第乂族氮族元素製造。該等第出族 氮化LED能夠發出越過可視光譜並進入光譜之紫外範圍之 光,進而可望具有多種應用。其它發光二極體可由二族 構化物及第m料化物材㈣統製成,其發射琥轴色光、 紅色光及光譜之紅外區域光。 傳統地,藉由在基板上沈積—n型摻雜區域、一主動區域 及一P型摻雜區域製造LED。某些LED具有形成於裝置:側 之η型接點及形成於裝置另一側之p型接點,其建立一垂直 裝置。其它LED之兩接點形成於該裝置之同—側,由該等 接點提取光。該結構稱為i晶生長裝置。在垂直裝置與磊 晶生長裳置中,由主動區域產生之大部分光經由p型接點^ 開裝置。由於p型接點通常包括金屬及/或半透明金屬氧化 物以優化其電傳導特性,p型接點一般不易透射光,引起了 一設計問題。 近來提出了-種與此設計問題相關之覆晶架構。如圖丄 所示’在覆晶裝置1〇〇中晶粒11〇安裝於底座114上,其中接 95115.doc 1377706 點朝向底座。由主動區域產生之大部分光經由基板而非接 點離開裝置。所有電接點均可定位於覆晶晶粒之底部。裝 置之完成係藉由形成底座114、疊置於底座上之可焊接層 118-1與118-2及可焊接層上之焊接球122-1與122-2,接著將 晶粒110附接至焊接球122以向晶粒提供電接點。 現有設計藉由將導線接合件置放於具有可焊接層之電接 點内而為電流提供路徑。該導線接合件由形成於可焊接層 上且與導線130-1及130-2連接之焊接球丨^—丨及126_2組 成。接著導線可與發光裝置封裝之封裝引線132-1及132-2 連接。底座及晶粒本身藉由晶粒環氧樹脂附接至導線板 134。 導線接合件式裝置具有若干缺點。第一,導線接合件對 熱敏感。.因而LED設計中之一限制係導線接合件能承受多 少熱量。由於新一代LED計劃在更大壓力及更高溫度環境 下運作’導致運作溫度及熱產生的增加,此問題變得越來 越重要。導線中之電流加熱導線,此方法被稱為歐姆加熱 法。歐姆加熱之程度尤其由電流密度決定。提高之溫度及 重複熱循環可導致導線接合件損壞,諸如焊接球與可焊接 層分離、導線變脆或狹窄截面上之熔融引起導線破損。在 靜電放電(ESD)之狀況下或在諸如打開及關閉裝置之瞬時 期間,該加熱問題亦可發生。提高溫度操作亦可導致增強 焊接球126與可焊接層118之間的界面上之物理脆度及電阻 金屬間相增長,其最終會導致界面失效。 第二’導線接合件不能傳導大量熱量遠離LED。在常規 95115.doc 1377706 操作中在LED中產生熱量。藉由n型層電子與p型層電洞之 再組合在LED中產生光。此再組合之部分為輕射性的,引 起光子發射。然而再組合之相當大部分可為非輻射性的, 反而產生熱量。在某些裝置中,接著必須傳導在裝置中產 生之至少部分熱量遠離晶粒以避免損害LED。導線接合件 具有相對較小之截面區域因而不能傳導大量熱量遠:晶 粒。 第三’導線為較脆的,因而在諸如溫度衝擊、粗加工及 高濕度環境等極端操作條件下通常成為主要失效機構。為 保護脆弱導線接合件,LED必須裝配於對終端用戶有實際 用處之封裝中。 第四,導線接合件冑要在LED佔據面積之外部在底座上 之空間,使得裝置更大且更昂貴。由LED發射併入射於較 大底座上之光可自底座反射,其不恰當地增加了光源尺寸。 最後,導線接合件在LED隨後之封裝中可截留封裝中之 空氣,造成折射率之較大步進,其可降低自LED晶粒提取 光進入外部世界的效率。 【發明内容】 根據本發明之貫施例,一裝置包括一底座及一半導體發 光裝置,其安裝於一覆晶架構組態之該底座第一侧上之第 一導電區域及第二導電區域上,該底座在其第二侧上具有 第二導電區域及第四導電區域。利用該第三與第四導電區 域不需使用導線接合件即可將該底座焊接於諸如板之結構 上。藉由一第一導電層電連接該第一導電區域及該第三導 95115.doc 1377706 電區域’藉由-第二導電層電連接該第二導電區域及該第 四導電區域。該第一導電層及該第二導電層可安置於該底 座之外部或該底座之中。 _ 【實施方式】 根據本發明之實施例,其上安裝LED之底座在相對於led 之側上具有電接點,使得藉由焊料接合點而非導線接合件 可將LED及底座表面黏著於諸如板之另—裝置上。 圖2說明了具有焊料接合點之本發明之一實施例。藉由將 互連件122-1及丨22-2耦接至晶粒形成用於發光裝置1〇〇之晶 粒110之電接點。儘管所說明之實施例提及焊接球,但互連 件可由以下材料製成:基礎金屬、金屬合金 '半導體金屬 合金、焊料、熱性及電性導電膏或化合物(例如環氧樹脂)、 LED晶粒與底座之間不同金屬間之低共熔接合件(例如,鈀 中之鈀(Pd-In-Pd))、Au柱形球(stud-bump)或除球形以外之 焊料組態,諸如桿。在不同實施例中焊接球數目可為三個 或二個以上。三焊接球設計為晶粒11〇提供穩固支撐。在某 些實施例中為p型層提供接點之焊接球數目超過為n型層提 供接點之焊接球數目,例如2個p型焊接球及丨個n型焊接球。 焊接球122電耦接至導電表面118,該導電表面118在經由 焊料接合點可連接至另一結構之表面可黏著底座丨14上。儘 管以下實施例中導電表面118為可焊接層或表面並藉由焊 料接合點與其它裝置連接,除焊料外之其它導電表面及接 合件適合本發明並在本發明之範圍内。焊料接合點包括形 成於底座114及焊接區域13 8-1與138-2上之可焊接層118-1 95115.doc •9· iJ?77〇6 及118-2。在不同實施例中可焊接層與焊料數目可為三個或 三個以上。可焊接層118可形成於底座114之至少兩個表面 上。在某些實施例中可焊接層覆蓋底座114之相對表面,諸 如頂表面與底表面。如圖2所示,可焊接表面可圍繞底座之 側表面延伸,其將可焊接表面之頂部及底部連接。該等設 計提供了焊料138可焊接於其上之較大可焊接表面。焊= 138可僅在底座114之底部接觸可焊接表面或當可焊接表面 提供於底座114之側面上時可延伸至底座114之側面。焊料 138電耦接至形成於諸如印刷導線板之板134上的封裝引線 132-1及132-2。封裝引線132可由各種方式形成,例如,藉 由覆蓋導線板之一個以上的表面。最後,因為經由除頂部 之外的方向上發射產生於晶粒中之光子的一部分,所以底 座114之一或多個表面及面對LED 11〇之板134可為反射性 的或類似於圖1所示反射器133之反射器可附接至板134。反 射器具有一反射性表面,其被定位及塑造以將此等光子再 次導引於較佳發射方向,該方向通常垂直於板之平面。 底座114可自例如Si、SiC、蘭寳石、PCB、A1NX、Al2〇3 或在相關應用中之任何其它已知材料形成。焊料13 8可為, 例如:含Sn之合金(諸如pbSn-或AgSn-二元化合物、三元化 合物及四元化合物);含Au合金(諸如AuSn或AuGe二元化合 物);含一或多種下列金屬之合金:In、Bi、Pb、Sb、Ag、 Cu ;或一種金屬,諸如 Au、Ag、In、Sn、Pb、Bi、Ni、Pd 或Cu。可焊接層118可為例如金、銀、錄、銅、始或適用於 相關應用之其它材料。板134可自例如塑膠、陶瓷(諸如 95H5.doc •10- 1377706
Ab〇3或AIN)、複合層(諸如BN300或FR4)或含Cu、Mo、Ni 或W之金屬板形成。 由於若干原因發光二極體直接耦接至底座114而非導線 板134。第一’在Si底座之狀況下,藉由例如標準集成電路 製造技術ESD保護電路可直接整合於底座。適當ESD保護電 路之實例包括平行於LED之電容器、單一反平行二極體(諸 如Zener或Schottky二極體)及兩個相對耦合式Zener二極 體。第一’底座有助於裝置之良好光反射。第三,較小部 件可开> 成於底座而非導線板上。較小部件尺寸允許將焊接 球定位於緊靠底座上,以潛在地減小裝置之尺寸並改良裝 置之熱提取能力。 圖3說明了本發明之另一實施例。圖3之設計類似於圖2 之設汁。經由焊接球122將晶粒11 〇電耦接至導電層丨丨8。焊 料Π8將底座上之可焊接層實際電連接至形成於板134上之 封裝引線132,板Π4可為一印刷導線板。 此實施例之一態樣為一有效反射器之構型。反射井146 形成為底座114之一部分。可焊接層ι18覆蓋反射井表面之 分。在某些實施例中,基本上整個反射井1 46被可焊接 a 118覆蓋。可焊接層118係由具有合適反射性之材料形 成,使得其可反射大部分入射光。該等材料包括金及銀。 在某些實施例中’反射層可被形成為疊置在可焊接層118之 上,具有特定合適之反射特性。塑造該反射井以在光發射 之較佳方向反射入射光。此方向通常垂直於底座之平面, 但其它設計亦有可能。接著將晶粒定位於反射井中且藉由 95115.doc 1377706 焊接球122將其輕接至可焊接層η8β I置可礙入光輕合材 料丨5〇(諸如環氧樹脂或聚石夕氧)之中。光耦合材料is〇為晶粒 110提供機械及熱保護。光耦合材料亦可有效將所產生之光 導入較佳方向並耦合來自半導體層且進入外部環境之光。 圖4 3兒明了一種形成圖2及圖3所示之發光裝置的方法。圖 4以一平面圖說明了根據本發明之一實施例在晶圓4〇〇上之 底座114之陣列佈局。晶圓4〇〇被分割成在此後形成個別底 座114-1至114-N的區域,其中整數。n型可焊接層丨“」 被形成為疊置在底座114-1之-區域上,圖中標示為各個底 座左上角之減號。ρ型可焊接層118_2被形成為叠置在底座 114上之一與11型可焊接層互補之區域,圖中標示為各個底 座右下角之加號。形成可焊接層118以配合覆晶晶粒11〇之 佈局。 經由焊接球122提供可焊接層118及晶粒u〇之間的電耦 接。底座114被調整成支撐焊接球122〇 η型可濕金屬層154 被形成為疊置在η型可焊接層U8_i上以支撐η型焊接球 122-1。ρ型可濕金屬層^^丨及^卜以皮形成為疊置在ρ型可 焊接層U8-2上以支撐ρ型焊接球122_2及122_3。可濕金屬層 154及158提供合適區域用以焊接焊接球122_1至122_3,因而 在可焊接層118及晶粒11〇之間產生電耦接。在某些實施例 中Ρ型可濕金屬層158超過η型可濕金屬層154之數目,因為 經由至ρ型接點之連接自裝置中提取在主動區域產生教 量最為有效,所以該等連接之表面區域通常被最大化。由 於自η型接點形成之區域移除了主動區域,ρ型層及ρ型可濕 95115.doc -12- 1377706 金屬層提供用於自裝置提取熱量之最直接路徑。 •圖4之實施例具有三個烊接球。此設計具有高度機械穩定 性。在其它實施例中可採用更多焊接球或焊接桿。另外, 在圖4所示之實施例中,僅一個發光裝置與各個底座相連 接。在其它實施例中各個底座上可定位超過一個發光裝置 (作為個別晶粒或作為形成於單個晶粒上之多個裝置)。 在某些實施例中藉由在相鄰底座114-1及114-2之間形成 通道162-1、2形成可焊接層118。通道可為晶圓4〇〇中之一 通孔。在本實施例中通道162-1、2形成於底座114-1及114-2 之間的邊界上。 在某些實施例中藉由在通道162之壁上形成導電板層166 來鍍敷通道162。板層166可為金屬層或高度摻雜之半導體 層。在某些實施例中板層166使底座頂表面上之可焊接層 118耦接至底座底表面上之導電層。本文底座之頂表面界定 為晶粒110_接至底座114之表面。標題為"Sernic〇nduct〇r
Device And Method For Making The Same"之PCT公開案 WO99/59206中描述了 一種形成該等通道之方法。 圖5 §兒明了本發明之一實施例,其中在底座頂表面及底表 面上之可嬋接表面之間的電連接形成於底座之内而非底座 之外側。在圖5之裝置中,底座頂部上之可焊接區域(其上 女置有焊接球122-1及122-2)電連接至底座底部上之可焊接 區域(經由底座内之導電路徑附接至焊料接合點138)。底座 114可為例如具有若干不同區域之矽/玻璃複合底座。矽區 域m-2被金屬化層118^118·2包圍,其形成底座之頂表 95115.doc -13- 1377706 面與底表面之間的導電路徑。諸如ESD保護電路之電路可 形成於由金屬化層118-1及118-2包圍之矽區域η4·2中或其 匕石夕區域114-3中。該等其它石夕區域114_3亦可電接觸晶粒 110或板134。玻璃區域ιΐ4_ι電隔離不同矽區域。可由絕緣 區域135電隔離焊料接合點138,絕緣區域135可為例如介電 層或空氣。圖5之底座可包括圖3所示之整合式反射器罩。 矽/玻璃複合底座在美國專利6,15〇197及6,114,716與已出 版之美國專利申請案200300085416中有詳細描述。 圖6Α-6Ε說明了在圖5之底座上LED晶粒之形成及安裝。 如圖6A所示,生長矽晶圓6〇以包括諸如以上提及之esd保 護電路之任何所要電路。經由習知光罩及蝕刻步驟將孔。 形成於晶圓60内。如圖6B所示,導電層63(諸如一種金屬) 形成於晶圓60之上及孔61之内。接著可圖案化導電層 玻璃層62接著形成於晶圓go之上及孔61之内。 在圖6C中,移除玻璃層62之部分及晶圓6〇以曝露導電層 63。接著可圖案化晶圓下側上之導電層63且可附加並圖案 化額外導電層,結果形成圖所示之底座。可由介電層Μ 隔離不同導電區域63。一旦晶圓之下側被圖案化,可經由 互連件122將LED晶粒11 〇實際電連接至底座上之導電區域 63 〇 如圖6E所示,接著可將所安裝之LED晶粒可被選擇性塗 佈一發光材料層66,該發光材料層66包括諸如磷之發光材 料。可藉由例如模板印刷、絲網印刷、著色、電泳沈積、 喷射著色或靜電沈積來塗覆該發光材料層66。模板印刷 951l5.doc •14- 1377706 在2000年10月13曰申請之標題為"Stenciling Phosphor Layers on Light Emitting Diodes”之申請案第 09/688,053號 中有詳細描述。電泳沈積在美國專利第6,576,488號中有詳 細描述,該專利頒於2003年6月10日,標題為·’Using Electrophoresis to Produce a Conformally Coated Phosphor-Converted Light Emitting Semiconductor Structure”。兩篇申請案均以引用的方式併 入本文中。層66上可形成用於密封或保護發光材料之可選 用塗層67。可選用塗層可為例如環氧樹脂、聚矽氧或旋塗 式玻璃。在所要層被塗覆於所安裝之LED晶粒上之後,在 圖6E箭頭所示區域内之LED之間藉由切塊法可將矽/玻璃 複合底座切成個別裝置。 圖7說明了一具有在底座頂部及底部上的可焊接表面之 間的電連接之底座的替代實施例,該電連接被形成於底座 内而非底座外部。在圖7所示之裝置中,位於電連接至晶粒 下方之底座區域114-2為導電材料(諸如銅)之插塞。藉由諸 如矽區域114-3及114-1電分離導電插塞。諸如ESD保護電路 之電路可形成於矽區域114-1及114-3之中。圖7所示之底座 可包括圖3所示之積體反射器罩。 圖8A-8D說明了 LED晶粒在圖7所示之底座上之形成及安 裝。圖8A提供一矽晶圓,其被製造以包括諸如上述之ESD 保護電路之所要電路。如圖8B所示,通孔81形成於晶圓80 上待定位圖7所示之導電插塞之區域。如圖8C所示,接著將 導電材料填充於通孔81内。接著LED小晶粒110可安裝於晶 圓80上。在某些實施例中,導電插塞82延伸於晶圓80之頂 95ll5.doc -15- 部上且不需使用i連件122即可直接$接至LED小晶粒 110 °
在本發月之某些實施例中,上述安裝於表面可黏著底座 之LED係大功率裝置,意味其在高電流密度下運作。大 功率裝置之面積可大於彻χ4⑻一並可在至少5G 電,密度下運作。大功率裝置之-般尺寸大於或等於lxl mm之面積且電功率消耗大於或等於丄w。在該等裝置中, 必須仔細選定LED與底座之間及底座與其上安裝底座之裝 置之間的互連使得其能夠承受LED產生之熱量,但不要求 在可能損壞LED之溫度下軟溶。另外’咖通常安裝於底座 之上,接著在-單獨步驟中將底座安裝於另一結構。必須 仔,,,田選疋LED與底座之間的連接以承受用於製造底座與其 上女裝底座之裝置之間的連接所要求的溫度。與底座 之間合適之互連件實例包括Au七互連件、8〇%Au2〇%Sn 焊料、88% Au 12。/〇 Ge焊料、97% Au 3% Si焊料、95% 外 5% Sn焊料及90% Pb 1G% Sn焊料,其具有超過·。?之軟溶溫 度。底座與其上安裝底座之裝置之間合適之互連件實例包 括Pb-Sn共熔焊料、Ag_Cu_Sn焊料及以基於扑也之焊料, 其具有低於500卞之軟熔溫度。 在某些實施例中’上述安裝於表面可黏著底座之led具 有小於400x400 —之面積且可在約5誕與約_ mA之間 的電流下運作。 藉由焊料連接表面可黏著至其它裝置之LED底座(諸如 上ϋ圖2 3 5及7中之底座)具有若干優點。表面可黏著底 951I5.doc -16- 1377706 座具有改良(熱特性,與導線接合件底座相比更活躍、更 小且更易裝配。 底座與其上安裝底座之裝置之間的焊料接合點可改良 led底座組合之熱特性。商用LED通常由第ηι·ν族材料形 成。歷來在第III族氮化裝置之狀況下,由於製造高質量第 III族氮化層之難度’裝置之尺寸、裝置所承受之最大電流 密度以及裝置產生之光的量非常小。隨著製造技術的改 良,出現了能夠在更高電流密度下運作之更大裝置。通常, 隨著提供至該裝置之電流量的增加,由led產生之光的量 恰當地增加。然而,隨著提供至LED之電流量增加,該裝 置中產生之熱量亦增加。隨著在第m_ V族led内溫度上 升,最終可觀察到諸如結晶缺陷遷移、暗線形成、生長基 板裂開、半導體裝置層裂開及裝置接點分層等失效機構。 因此,特定LED底座或封裝用以避免產生額外熱量或自led 有效驅散熱量之能力限制了電流密度且因而限制了 led產 生之光的量。上述表面可黏著底座可以兩種方式改良LED 底座組合之熱特性。 第一,底座與其上安裝底座之裝置之間的大型焊料連接 在比導線接合件可能傳播之表面更大的表面上傳播供應至 發光裝置的電流’其減小了連接内之電流密度。較低電流 密度產生較少歐姆熱量。因此,大功率LED可相同材料形 成。 第二,焊料連接提供有效渠道以傳導開晶粒内由非輻射 性再組合產生之熱量,其進一步減少裝置之運作溫度。藉 95115.doc -17- 1377706 由有效傳導熱量遠離led,焊料接合點可增加可運作LED 電流密度,其可増加led產生之光的量。另外,導線接合 件本身易受熱量影響。使用焊料接合點取代導線接合件可 降低或消除與導線接合件相關之各種失效機構。詳言之, 焊料連接不像導線接合件那樣易於釋放其接點,其不變脆 且不融掉,引起電路徑中之斷開。 焊料接合點之另一優點係其並不較脆,不易受極端運作 條件(L括濕性環境、溫度衝擊及粗加工)之不利影響。具有 焊料接合點之LED不需像導線接合件裝置一樣裝配於封裝 中,導線接合件裝置要求封裝保護較脆導線接合件。相反, 可將LED以未封裝之形式提供至終端用戶且終端用戶可將 LED直接併入其產品中,例如,藉由在具體應用中直接將 其焊接至導線板上。 焊料接合點之置放不需要額外空間,而導線接合件需要 額外底座空間。舉例而言,除被LED覆蓋之底座部分外各 個導線接合件需要位於底座上的圓形接合襯墊,及包圍圓 形接合襯墊之額外底座材料以產生易於切成方塊狀之底座 (例如六角形或矩形)。通常,各個圓形空間直徑約為丨5〇 μπι。消除導線接合襯墊允許形成相對較小之裝置,或等效 地,允許在相同尺寸之晶圓上形成更多數目之裝置,其增 加了生產過程之良率。在一更小之裝置中,更少光自底座 反射,其引起較佳之更小光源尺寸,另外,更小底座需要 更少矽,其降低了底座成本。在某些實施例中,底座可小 於安裂於該底座上之LED之佔據面積。 95115.doc -18- 1377706 最後,當磷轉換LED安裝於導線接合式底座上時,底座 上之導線接合襯塾與碟層位於底座之同一側。因此,在鱗 沈積於LED上之後,必須將磷層圖案化以移除覆蓋導線接 合襯墊之鱗層。相反,表面可黏著底座之接點位於底座上 與磷層相對之側。因此,使用表面可黏著底座大幅度簡化 了在LED上塗佈磷之過程,因為不需圖案化磷層以曝露接 合襯墊。 以上討論之實施例僅為例示性的’其並不意欲限制本發 明。熟習此項技術者將認識到所述之實施例之各種變化亦 在本發明之範疇内。同樣地,本發明僅受下列申請專利範 圍限制。 【圖式簡單說明】 圖1說明了 一具有導線接合件之LED。 圖2說明了 一連接至一具有焊料接合點之板的LED底座 組合。 圖3說明了一在底座上具有反射井之LED底座組合。 圖4說明了 一具有通道之底座之晶圓。 圖5說明了一具有在底座内之通道内所提供之前與後底 座接點之間的連接的LED底座組合。 圖6A-6E s兒明了 一在圖5之底座上形成及安裝LED之方 法。 圖7 s兒明了一具有在底座内之通道内所提供之前與後底 座接點之間的連接的LED底座組合之替代實施例。 圖8A-8D說明了 一在圖7之底座上形成及安裝led之方法。 95115.doc •19- 1377706 【主要元件符號說明】 60 梦晶圓 61 子L 62 玻璃層 63 導電層 64 介電層 66 發光材料層 67 可選塗層 80 晶圓i 81 通孔 82 導電插塞 100 覆晶裝置 110 晶粒 114-3 ^區域 114-2 石夕區域 114-1 玻璃區域 114 底座 118-1, 118-2 可焊接層 122-1, 126-1, 122-2, 126-2 焊接球 122-2, 122-3 P型焊接球 122 互連件 130-1, 130-2 導線 132-1, 132-2 封裝引線 95115.doc -20- 1377706 133 反射器 134 導線板 138-1, 138-2 焊接區域 135 絕緣區域 138 焊料/焊料接合點 146 反射井 150 光搞合材料 154 η型可濕金屬層 158-1, 158- -2 Ρ型可濕金屬層 162-1, 162- -2 通道 166 導電板層 400 晶圓 95115.doc -21 ·
Claims (1)
- ^//706 十、申請專利範圍: 第093122563號專利申請案 中文申請專利範圍替換本(1〇〇年11月) ,裝置,其包含: 〉年刀月Λ日半導體發光裝置,其包含: 一 η型層; 一 Ρ型層; 一插入該η型層與該Ρ型層之主動區域; 電連接至該η型層之η型接點;及 一電連接至該ρ型層之ρ型接點; 其中该η型接點及該ρ型接點形成於該半導體發光裝 置之一相同侧;及 —底座’其包含: 位於該底座之一第一側上之第一導電區域及第二 導電區域; 位於該底座之一第二側上之第三導電區域及第四 導電區域; 半導體區域;及 —絕緣區域,其中該半導體發光裝置之該η型接點 與6亥Ρ型接點係電連接及物理連接至一覆晶構型之該底 座的該第一導電區域及第二導電區域。 如。a求項1之裝置,其中該第一導電區域及第二導電區域 包合之材料係選自一由金、銀、鎳、鉑及銅組成之群。 如明求項1之裝置,其中該第一導電區域及該第三導電區 域藉由一第一導電層電連接,而該第二導電區域及該第 四導電區域藉由一第二導電層電連接。 95115-1001H8.doc I3VVVU〇 4.如請求項3之裝置, 金屬層。 其中該第一導電層及該第二導電層係 導電層及該第二導電層係 5.如請求項3之裝置,其中該第一 高度摻雜之半導體層。 6.如明求項3之裝置 於該底座之外側。 7·如請求項3之裝置 置於該底座之内。 其中該第一導電層及該第二導電層位 其中該第一導電層及該第二導電層安 8. 如明求項7之裝置,其中該第一導電層及該第二導電層各 個至》部分地包圍該底座内半導體材料之-區域。 9. 如明求項7之裝置,其中該第一導電層及該第二導電層包 含銅。 1〇·如請求項1之裝置,其中該半導體發光裝置安裝於形成於 底座上之—井中。 11.如請求項1〇之裝置’其中該井之側面及底部之至少一部 分反射由該半導體發光裝置發射之光。 12_如請求項1〇之裝置,其中至少部分地以光耦合材料填充 該井。 13·如請求項1之裝置,其進一步包含形成於該半導體區域内 之電路。 14. 如請求項!之裝置,其中該絕緣區域包含玻璃。 15. 如請求項】之裝置,其進一步包含: 一板;及 一將該板連接至該第三導電區域及該第四導電區域之 95115.1001118.doc -2- 16.1377706 焊料接合點。 如-月求項1之裝置’其中該半導體發光裝置之面積大於約 400χ400 μιη2。 17. 18. 19. 20. 21. 22. 23. 24. 25. 如。月求項1之裝置’其中該半導體發光裝置能夠在至少% A/cm2之電流密度下運作。 如-月求項1之裝置,其中該半導體發光裝置之面積大於或 荨於約1 χ 1 mm2。 如吻求項1之裝置’其中該半導體發光裝置能夠在大於或 等於1 W之電功率消耗量下運作。 :明求項1之裝置,其中包括該第一導電區域及第二導電 區域之5亥底座之一表面不存在導線接合襯墊。 如靖求項1之裝置,其進一步包含一疊置於該半導體發光 裝置相對於該底座之一表面上的發光材料層。 如喷求項21之裝置,其中該發光材料層疊置於該半導體 發光裝置之一側表面上。 如請求項1之裝置,其中該第一導電區域、該第二導電區 域'該第三導電區域及該第四導電區域各包含可焊接層。 如請求項1之裝置,其中該半導體發光裝置之面積小於約 400x400 μιη2 0 如請求項1之裝置,其中該半導體發光裝置能夠在約5mA 與約1 〇〇 mA之間的電流下運作。 95115-1001118.doc
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EP1503433A3 (en) | 2011-03-09 |
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