TW466787B - Semiconductor light emitting element and manufacturing method thereof - Google Patents
Semiconductor light emitting element and manufacturing method thereof Download PDFInfo
- Publication number
- TW466787B TW466787B TW089126787A TW89126787A TW466787B TW 466787 B TW466787 B TW 466787B TW 089126787 A TW089126787 A TW 089126787A TW 89126787 A TW89126787 A TW 89126787A TW 466787 B TW466787 B TW 466787B
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- Prior art keywords
- light
- semiconductor light
- layer
- phosphor
- emitting device
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 49
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 239000000463 material Substances 0.000 claims abstract description 25
- 239000000758 substrate Substances 0.000 claims abstract description 18
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 36
- 238000000034 method Methods 0.000 claims description 17
- 238000011049 filling Methods 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 8
- 230000002079 cooperative effect Effects 0.000 claims description 5
- 239000002904 solvent Substances 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims description 2
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 2
- 239000011230 binding agent Substances 0.000 claims 1
- 210000002784 stomach Anatomy 0.000 claims 1
- 238000002161 passivation Methods 0.000 abstract description 16
- 229910052594 sapphire Inorganic materials 0.000 abstract description 8
- 239000010980 sapphire Substances 0.000 abstract description 8
- 239000000126 substance Substances 0.000 abstract description 5
- 239000000203 mixture Substances 0.000 description 8
- 239000000853 adhesive Substances 0.000 description 7
- 230000001070 adhesive effect Effects 0.000 description 7
- 238000000605 extraction Methods 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 229910002704 AlGaN Inorganic materials 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 2
- 239000011324 bead Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 240000002329 Inga feuillei Species 0.000 description 1
- 239000000020 Nitrocellulose Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920001220 nitrocellulos Polymers 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/02—Semiconductor devices having potential barriers 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 bodies
- H01L33/26—Materials of the light emitting region
- H01L33/30—Materials of the light emitting region containing only elements of Group III and Group V of the Periodic Table
- H01L33/32—Materials of the light emitting region containing only elements of Group III and Group V of the Periodic Table containing nitrogen
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- H—ELECTRICITY
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- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/005—Processes
- H01L33/0062—Processes for devices with an active region comprising only III-V compounds
- H01L33/0066—Processes for devices with an active region comprising only III-V compounds with a substrate not being a III-V compound
- H01L33/007—Processes for devices with an active region comprising only III-V compounds with a substrate not being a III-V compound comprising nitride compounds
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- H—ELECTRICITY
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- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/02—Semiconductor devices having potential barriers 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 bodies
- H01L33/08—Semiconductor devices having potential barriers 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 bodies with a plurality of light emitting regions, e.g. laterally discontinuous light emitting layer or photoluminescent region integrated within the semiconductor body
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- H01L33/00—Semiconductor devices having potential barriers 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 having potential barriers 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
- H01L33/50—Wavelength conversion elements
- H01L33/508—Wavelength conversion elements having a non-uniform spatial arrangement or non-uniform concentration, e.g. patterned wavelength conversion layer, wavelength conversion layer with a concentration gradient of the wavelength conversion material
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- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/44—Structure, shape, material or disposition of the wire connectors prior to the connecting process
- H01L2224/45—Structure, shape, material or disposition of the wire connectors prior to the connecting process of an individual wire connector
- H01L2224/45001—Core members of the connector
- H01L2224/45099—Material
- H01L2224/451—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof
- H01L2224/45138—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof the principal constituent melting at a temperature of greater than or equal to 950°C and less than 1550°C
- H01L2224/45144—Gold (Au) as principal constituent
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- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
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- H01L2224/4809—Loop shape
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- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/481—Disposition
- H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/48221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/48245—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
- H01L2224/48247—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic connecting the wire to a bond pad of the item
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- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
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- H01L2224/48257—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic connecting the wire to a die pad of the item
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- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/49—Structure, shape, material or disposition of the wire connectors after the connecting process of a plurality of wire connectors
- H01L2224/491—Disposition
- H01L2224/49105—Connecting at different heights
- H01L2224/49107—Connecting at different heights on the semiconductor or solid-state body
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- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/80—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
- H01L2224/85—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a wire connector
- H01L2224/85909—Post-treatment of the connector or wire bonding area
- H01L2224/8592—Applying permanent coating, e.g. protective coating
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers 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 having potential barriers 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
- H01L33/50—Wavelength conversion elements
- H01L33/501—Wavelength conversion elements characterised by the materials, e.g. binder
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- Engineering & Computer Science (AREA)
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- Manufacturing & Machinery (AREA)
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- Led Device Packages (AREA)
Description
A7 4 6 6 787 __B7___ 五、發明說明(1 ) 【發明所屬之技術領域】 本發明係關於半導體發光元件及其製造方法,尤其較 佳地適用於發光效率高之半導體發光元件之製造方法。 【習知技術】 利用光之記億裝置係記憶容量大,具有因非接觸之長 壽命及高可靠性,所以,被廣泛地利用。於此,所使用之 光係愈短波長因可提高記錄密度,所以,有從藍色改爲綠 色發光元件之趨向。又,已實現藉組合藍色L E D與 YA G熒光體以獲得白色光之白色L E D等新發光元件。 作爲從藍色到綠色之發光元件,現在,以G a N系材 料已得到高亮度之發光二極體(L E D )或雷射二極體( LED)。 對此G a N系發光元件之結晶成長技術,最近E L〇 (.Epitaxially Laterarlly Overgrown )受到注目。 第1 1圖係表示於E L 0之成長情形槪要之剖面圖。 首先,在藍寶石基板1上形成選擇成長光罩2 (第11圖 (a)),在ELO進行GaN系膜之成長時,結晶缺陷. 係因橫方向與縱方向之成長速度之差,如嵌入選擇成長光 罩似地成長(第11圖(b)及第9圖(c))。並且’ 其時,結晶缺陷因沿著快速向橫方向發生,所以’因選擇 成長光罩上之E L 0引起之G a N膜,轉移將變成非常地 少。更且,疊層磊晶層得到元件構造時,質地之缺陷密度 因非常地低,所以,可得到優於發光特性之半導體發光元 --------------r,:j- I (請先閱讀背面之注意事項再填寫本頁) 訂· 線- 經濟部智慧財產局員工消費合作社印製 本纸張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) -4-
4 6 6 7 B T A7 Β7 五、發明說明(2 ) 件 【發明所欲解決之問題】 使用這種H a N系材料之高亮度之發光二極體( LED)中,於發光中心(D/A)型之藍色LED構造 ,係屬於活性層愈I n Ga N摻雜有作爲施主(donor)之 Si及作爲受主(accepter )之Z n、Mg等,並非頻帶端因 欲在發光中心得到所需之發光波長,所以,在可視光以外 也發生許多之紫外(Ultra Violet : U V )光。亦即,於此 活性層之組成係以I η 1 3 %,中心波長4 ’ 0 0 0 n m之 頻帶端之發光波長雖然有3 6 5 nm左右,但是不只是發 光中心也存在有從此頻帶端之紫外光,愈增加注入電流頻 帶端發光之比例會增加。然而,此紫外光未被有效利用, 光取出效库仍然停留於低水準。 又,減少I η組成從活性層只產生紫外光之U V發光 L E D因所產生之紫外光未有效地取出,仍然停留於低外 部量子效率。又,上述E L 0技術只被利用於低轉移化。 - ......\ ...'一 I lr'r! ! I 訂·! I ! 線!· y (請先閱讀背面之注意事項再填寫本頁) 本 決這 經濟部智慧財產局員工消費合作社印製 些問題所發明者,其目的係提供 種光取出效率高之半導體發光裝置 【解決問題之手段】 依據本發明,提供一種半導體發光元件 係具有: 絕緣基板,與 其疊層構造 -5- 本紙張尺度適用$國國家標準(CNS)A4規格(210 X 297公釐) 4 8 6 78 7 a7 ____B7___ 五、發明說明(3 ) G a N疊層膜:疊層形成於上述絕緣基板上之G a N 系疊層膜,其一層爲使用包含將紫外光變換爲可視光之熒 光體之選擇成長光罩材層使其成長之G a N系膜,與 活性層:形成於此G a N系疊層膜上,而至少發光紫 外光成分。 依據此半導體發光元件,在E L 0用之選擇成長光罩 層之中,因預先混入有熒光體,所以可將以往未被有效利 用之紫外光在活性層附近可變換爲可視光,所以可顯著地 提升與熒光體之耦合效率。 在最上層再包含熒光體就更佳,提升從紫外光變換爲 可視光之效率可更提高發光效率。 發光層係AlxIny G a ι - χ - y Ν ( Ο ^ χ -◦ . lSy 芸 1)膜,或包含有 Βζ G a ι - ζ Ν ( Ο ^ ζ 《1)膜較佳。. 包含熒光體之選擇成長光罩,係被形成爲條狀、格子 狀、水珠花紋狀之任一較佳。 在絕緣基板背面側形成透鏡較佳.,藉此可從背面側之 光取出,也可安裝於浮片晶片。 經齊邨智慧材產-¾員X-消費合泎fi印i ---------------F-- (請先閱讀背面之注意事項再填寫本頁) 線. 包含熒光體之選擇成長光罩層之厚度爲5 0 nm以上 、2 Ο n m以下較佳。 又,若依據關於本發明之半導體發光元件之·製造方法 ,一種在絕緣基板上形成G a N系半導體層之疊層體之工 程,其特徵爲具有: · 在其一部疊層熒光體'或包含熒光體之塗層材作爲母材 本纸張尺度適用中/國國家標準(CNS)A4規格(210 χ 297公釐) ~ 經濟部智慧財產局員工消費合作社印製 b 7 4 s g 78 7 ‘ A7 ______By _ 五、發明說明(4 ) 之選擇成長用之光罩材之工程,及 包含使用此光罩材層以成長G a N系膜之工程,與 在此G a N系半導體層疊層體上方疊層至少發光紫外 光之活性層之工程。. 疊層光罩材之工程,係將包含熒光體之光罩材連同溶 劑供給,於5 0 0 °C附近蒸發溶劑成分得到,或連同氧化 矽等無機黏合劑供給,加熱固著獲得較佳。 【發明之實施形態】 茲參照圖式詳細說明本發明之實施形態如下。 第1圖係表示關於本發明之半導體發光元件1 0之構 造之剖面圖。 在藍寶石基板1 1上疊層GaN緩衝層1 2、Π — G a N層1 3,在其上均勻地混入之熒光體之S i 〇2所成 之ELO所需之光罩層15,在其上使用此光罩由ELO 所形成之11一〇31'\[層16,在疊層111〇3層17、 p-A 1 G a N 帽蓋層 1 8、P — G a N 貼合層(clad layer ) 19、P + — GaN 接觸層 20,在 P + — GaN 接 觸層2 0之光取出面形成有透明電極2 2,如接觸於透明 電極有p電極2 4,在露出之n — G a N層1 6分別形成 η電極2 5,表面全體由鈍化膜2 1及23覆蓋+。在此鈍 化膜也混入有熒光體。 按,作爲活性層在此爲A 1 χ I n y G a 1 - χ - y N (OSxSO . lSySl)膜,但是也可以使用 本紙張尺度適用j1國國家標準(CNS)A4規格(210 χ 297公爱) ' -------II--尸- /)----— II 訂·! ---線-- (請先閱讀背面之注意事項再填寫本頁) A7 B7 466787 五、發明說明(5 ) B ^ G a 1 - z N (OSzS)膜等種種之膜。 第2圖係表示使用關於本發明之半導體發光元件1 0 之半導體發光裝置3 0構成之剖面圖。 半導體發光元件1 0係搭載於桿3 1上,半導體發光 元件10之P電極2 4係此桿3 1 ,與η電極2 5以導線 3 2與各個電線3 3所連接。並且,全體係由帽蓋3 5覆 蓋。 第3圖係第1圖所示半導體發光元件之發光動作之模 式圖。於此,就發光中心型之情形說明如下。 在屬於發光層之I n G a活性層1 7所發出之光雖然 釋出於所有方向(球狀),但是其中紫外光成分因射到包 含於鈍化膜2 3之熒光體面而變換爲可視光。亦即,熒光 體也會變成發光源。 按,從活性層1 7直接向基板側之光4 3係絕緣基板 之底面,亦即,在導線架之反射面反射,而從上方被取出 0 此結果,因最終從此發光元件釋出之光4 4之中紫外 光成分之一部爲變成可視光成分,將變成作爲可視光之發 光量會增加。 第4圖係表示此情形之圖表,以實線所描繪之通常之 中心發光型之發光裝置係從活性層之發光在可視光頻帶與 紫外光領域分別具有尖峰,與此相對以波線所描繪之依據 本發明之發光裝置因使用E L 0光罩中之熒光體進行變換 致使尖峰變成一個,曉得在可視光頻帶之發光量爲增加。 本紙張尺度適用尤國國家標準(CNS)A4規格(210 X 297公釐) (請先閱讀背面之注意事項再填寫本頁) ;J--------訂--- 線! 經濟部智慧財產局員工消費合作社印製 8- 4 6 6 787 A7 B7 缦濟邨智慧財產苟—工.消費合作社印製 五、 發明說明 ( 6 ) 按 » G a N 系材料,因 藍寶 石基 板1 1對於 可 視 光 爲 透 明 , 所 以 這 些 變換光係藍 寶石 基板 側,亦即, 也 可 從 元 件 之 下面 側 有 效 地取出。 第 5 圖 係 表 示第1蘭所 示半 導體 發光元件之 變 形 例 者 J 將 從 活 性 層 1 7向下方之 光積 極地 利用者。於 此 爲 了 提 1¾ 取 出 效 率 在 藍寶石基板 1 1下面形成有透鏡5 0 〇 又 因 不 必 從表面取出 光, 所以 第1圖之構 成 所 需 之 透 明 電 極 就 可 省 略,在接觸 層2 0直 接連接P電 極 2 4 〇 所 以 可 減 低 接 觸電阻。 因 採 用 這 種 構成,就可 有效 地取 出迄今不能 從 背 面 取 出 之 光 線 0 因 此 ,可製造從 背面 進行 取出光線之 所 三田 m 浮 片 晶 片 ( flip chip )安裝背面 發光 型之 L E D。浮 片 晶 片 係 裝 配 工 程 變 成 簡 便降低成本之效果甚大。 第 6 圖 用 來 說明U V發 光L E D 適用本發明 例 之 發 光 動 作 之 圖 0 雖 然 從活性層1 8向 所有 方向放射紫 外 線 但 是 對 於 E L 〇 光罩層1 5 中之 熒光 體照射此紫 外 線 時 5 此 熒 光 體 將 變 成 發光體而使 可視 光發 光。換言之 此 熒 光 體 將 作 爲 可 視 光 之光源發生作用 0 第 7 圖 至 第 9圖係表示 光罩 層之 圖案之具體 例 , 可 培 擇 第 7 圖 所示 條 狀圖案5 1 、第8圖所示之格子狀匱 案 5 2 、 如 第 9 圖 所示之水珠花樣狀圖案5 3等圖案。 第 1 0 圖 係 表示關於本 發明 之半 導體發光元 件 之 製 造 方 法 之 工 程 別 剖 面圖。 首 先 準 備 藍寶石基板 11 ,在此表面依序成長
- V -6 線· (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準(CNS)A4規格(21:0 χ 297公釐) 9 466 78 7 A7 B7 五、發明說明( G a N緩衝層1 2 G a N層1 3 (第1 0圖 按著,液狀之S i 0 2,例如將商品名0 C D (東京應 化社製)均勻地混入.熒光體之材料使用旋轉器(spimner ) 等均勻地塗佈,以形成膜厚爲5 0 n m以上、2 0 n m以 下之光罩層1 4 (第1 0僵(b ))。關於此光罩層材料 將後述之。 接著,將此光罩層1 4使用光刻微影成像術( photolithography )形成圖.案,以形成E L 0所用之光罩圖 案 15 (第 10 圖(c))。 並且,使用此光罩進行EL0成長n — GaN層1 6 ,再在其上依序成長I nGa層17、p_AlGaN帽 蓋層18、p— AlGaN帽蓋層18、P+— GaN接觸 層 20 (第 10 圖(d))。 接著,如第1 0圖所示,蝕刻一部分元件使η接觸層 露出,在全面形成鈍化膜2 1之後,去除P + — G a Ν接觸 層2 0上之大部分鈍化膜2 1,在此部分選擇性地形成透 明電極2 2,如覆蓋此透明電極2 2形成鈍化膜2 3。在 這些鈍化膜2 1及2 3混入有熒光體。 接著,選擇性地去除鈍化膜2 1及2 3使透明電極端 部及η接觸面之一部分,在這些場所分別形成p電極2 4 及η電極25,以得到發光元件30。 於此實施形態雖然鈍化膜2 1及2 3採用了混入有熒 光體者,但是只在透明電極上部之鈍化膜2 3混入有熒光 - / /.'1 -------------------^---------$!_ (請先閱讀背面之注意事項再填寫本頁) 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) -10 466 787 A7 經濟部智慧財產局員工消費合作社印製 ______B7____ 五、發明說明(8 ) 體在機能上就足夠,又,也可以將鈍化膜不包含熒光體者 〇 並且,替代形成於透明電極上之鈍化膜2 3也可形成 炎光體層。 使用這樣地所構成之半導體發光元件,製造半導體發 光裝置時,將此半導體發光元件安裝於導線架等之裝設構 件3 1 ’將p電極2 4與裝設構件3 1使用金線3 3連接 ’將η電極2 5以導線3 2與金線連接,在導線架上將半 導體發光元件1 0使用樹脂3 4等塡充。可在此樹脂3 4 包含熒光體。並且,將全體收納於至少上面爲透明體之帽 蓋3 5內就可完成半導體發光裝置。 於此,作爲混入於E L 0光罩圖案或鈍化膜之熒光體 例如可使用(B a ,C a ) Β 4 0 7 (商品名C Μ Ζ — 1 5 2旭化成)及(C a,S r ) 2 Ρ 2 0 7 (商品名 CMZ-165旭化成)。 塗佈此熒光體所用之熒光體淤漿係製作如下。 首先,準備混合硝化棉(例如旭化成Η 1 2 0 0 0 ) 1 . 5重量%、醋酸丁酯98 . 5%之1 . 5%之NC黏 合劑,將上述熒光體(Ba,Ca) Β4〇7 (商品名 CMZ-152 旭化成製)及(Ca ,Sr) 2Ρ2〇7 ( 商品名C Μ Z - 1 6 5旭化成製)之混合物計1 Ο 0 g、 將上述NC黏合劑1 〇 O C C,再混合含有以硏磨機粉碎 更細之玻璃珠粒之黏著劑:混合物5 C C,作爲黏度.調整用 添加醋酸丁酯混合攪拌2 4小時以上,藉通過2 0 0或 (請先閱讀背面之注意事項再填寫本頁) -丨r, 訂· -·線. 本紙張尺度適用f國國家標準(CNS)A4規格(210 X 297公釐) -11 - A7 4 6 S 787 __B7___ 五、發明說明(9 ) 1 5 0網目之過濾器得到了熒光體淤漿。 (請先閱讀背面之注意事項再填寫本頁) 此熒光體淤漿爲被塗佈,但是儘管進行充分之硏磨若 黏著力弱時就增加N C黏合劑之添加量,若黏著力太強時 就改變熒光體之配比對應即可。 塗佈後之熒光體淤漿在5 5 0 °C左右之溫度烘烤就會 固化。 按,不必使用這種無機黏劑,也可使用有機溶劑等塗 佈於熒光體,藉加熱將溶劑蒸發以殘留熒光體。 【發明效果】 如以上,若依據本發明之半導體發光裝置,在選擇成 長光罩材之中,因預先混入有熒光體,就可將從發光層發 出之部分紫外光在活性層附近變換爲可視光,可顯著地提 升全體發光裝置之發光效率。 又,因在最上層再備有包含熒光體之保護膜,再提升 從紫外光到可視光之變換效率,發光效率會再提高。 經濟部智慧財產局員工消費合作社印製 又,依據關於本發明之半導體裝置之製造方法,將包 含熒光體之選擇成長光罩藉由無機黏合劑或有機溶劑之蒸 發確實地形成,就可安定地製造發光效率高之半導體發光 元件。 圖式之簡單說明 第1圖係表示關於本發明之半導體發光元件構成之元 件剖面圖。 本紙張尺度適用f國國家標準(CNS)A4規格(210 X 297公釐) -12- A7 4 6 6 787 ______B7___ 五、發明說明(ίο) 第2圖係表示使用第1圖所示半導體發光元件之半導 體發光裝置構造之剖面圖。· 第3圖係表示關於本發明之半導體發光元件之發光動 作之模式圖。 第4圖係表示第3圖所示之半導體發光元件之發光強 度分布之圖表。 第5圖係表示半導體發光元件之變形例之元件剖面圖 〇 第6圖係表示於U V發光型之半導體發光元件之發光 動作之模式圖。 第7圖係表示選擇成長光罩之圖案形狀之平面圖。 第8圖係表示選擇成長光罩之其他圖案形狀之平面圖 第9圖係表示選擇成長光罩之再其他圖案形狀之平面 圖。 第1 〇/ik:係表示關於本發明之半導體發光元件之製造 工程之工程1¾¾¾面圖。 第1 係表示E L 0光罩及依E L 0之成長情形之 工程別剖 【符號之說明】 11 藍寶石基板, 12 GaN緩衝層, 13 n — GaN 層, 笔準(CNS)A4 規格(210 X 297 公釐) -13 - (請先閱讀背面之注意事項再填寫本頁) 訂· 線· 經蒉部智慧財t-l)員I-消費合阼fi印製 本紙張尺度適用$國國家標準 468787 A7 _B7_五、發明說明(11 ) 15 S i 〇 2, 16 n — GaN 層, 1 7,4 Ο I n G a N 活性層, 18 p— AlGaN 帽蓋層, 19 p—GaN貼合層, 20 p+— GaN接觸層, 21 鈍化膜, _ 2 3 鈍化膜, 2 4 ρ電極, 2 5 η電極, 30 發光元件, 3 1 導線架, 3 4 金線, 35 熒光體, 4 1 活性層上面, 42 鈍化膜。 (請先閱讀背面之注意事項再填寫本頁) 、-0_ --線_ 經濟部智慧財產局員工消費合作社印製 本紙張尺度適用ΐ國國家標準(CNS)A4規格(210 X 297公釐) -14-
Claims (1)
- α8β83β8 466 787 六、申請專利範圍 1 . 一種半導體發光元件,其疊層構造爲具有: 絕緣基板,與 (請先閱讀背面之注意事項再填寫本頁) G a N系疊層膜:一種疊層形成於上述絕緣基板上之 G a N系疊層膜’其一層爲使用包含將紫外光變換爲可視 光之女光體之選擇成長光罩材層所成長之G a N系膜,與 活性層:形成於此G a N系疊層膜上之至少發光紫外 光。 2 .如申請轉移範圍第1項之半導體發光元件,其中 在最上層再備有包含熒光體之保護膜。 3 .如申請轉移範圍第1項之半導體發光元件,其中 上述發光層係包含AlxIny G a 1 - x _ , N(OSx Ο . 1 $ y S 1 )膜’或 BzGai-zN (SzSl)膜。 4 .如申請轉移範圍第1項之半導體發光元件,其中 包含上述熒光體之選擇成長光罩材層,係形成爲條狀。 5 .如申請轉移範圍第1項之半導體發光元件,其中 包含上述熒光體之選擇成長光罩材層,係形成爲格子狀。 經濟部智慧財產局員工消費合作社印製 6. 如申請轉移範圍第1項之半導體發光元件,其中 包含上述熒光體之選擇成長光罩材層,係形成爲水珠花樣 狀。 7. 如申請轉移範圍第1項至第6項之任一項之半導 體發光元件,其中再備有形成於上述絕緣基板背面側之透 鏡。 8. 如申請轉移範圍第1項至第6項之任一項之半導 體發光元件,其中包含上述熒光體之光罩層之厚度爲2 0 -15- _)Α4 規格(210 X 297 公釐) A8 B8 C8 D8 六 4 6' 6 78 7 、申請專利範圍 nm以上、50nm以下。 9 . 一種半導體發光元件之製造方法,其係在絕緣基 板上形成G a N系半導體層之疊層體,其特徵爲具有-· 在其一部分疊層紫外光置換爲可視光之熒光體或將包 含熒光體之塗層材作爲母材之選擇成長用之光罩材,及 使用此光罩材層成長G a N系膜之工程,與 在此G a N系半導體層疊層體上方疊層至少發光紫外 光之活性層之工程。 1 0 .如申請轉移範圍第9項之半導體發光元件之製 造方法,其中疊層上述光罩材之工程,係將包含上述熒光 體之光罩材連同溶劑供給,在5 0 0°C附近蒸發溶劑成獲 得。 11. 如申請轉移範圍第9項之半導體發光元件之製 造方法,其中包含上述熒光體之光罩材,係連同無機黏合 齊!Μ共給,以加熱固著得到。 12. 如申請轉移範圍第11項之半導體發光元件之 ^胃方法,其中無機黏合劑係氧化矽。 //. .〆 -------------k J-------訂ί—I—•線 1—' y· (請先閱讀背面之注意事項再填寫本頁) 經濟邹智慧財產局員X消費合作社印製 本紙張尺度適用韦國國家標準(CNS)A4規格(210 X 297公釐 -16-
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-
1999
- 1999-12-21 JP JP36283999A patent/JP2001177145A/ja active Pending
-
2000
- 2000-12-14 TW TW089126787A patent/TW466787B/zh not_active IP Right Cessation
- 2000-12-20 US US09/745,250 patent/US6504181B2/en not_active Expired - Fee Related
- 2000-12-21 EP EP00127957A patent/EP1111689B1/en not_active Expired - Lifetime
- 2000-12-21 DE DE60038216T patent/DE60038216T2/de not_active Expired - Lifetime
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2002
- 2002-10-28 US US10/281,852 patent/US6627521B2/en not_active Expired - Fee Related
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TWI392110B (zh) * | 2005-05-19 | 2013-04-01 | Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh | 製作發光轉換型發光二極體的方法 |
US8690629B2 (en) | 2005-05-19 | 2014-04-08 | Osram Gesellschaft Mit Beschrankter Haftung | Luminescence conversion LED |
Also Published As
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US20010004112A1 (en) | 2001-06-21 |
EP1111689B1 (en) | 2008-03-05 |
US20040079955A1 (en) | 2004-04-29 |
DE60038216T2 (de) | 2009-03-19 |
EP1111689A3 (en) | 2006-06-07 |
JP2001177145A (ja) | 2001-06-29 |
US6791118B2 (en) | 2004-09-14 |
US20030062531A1 (en) | 2003-04-03 |
US6627521B2 (en) | 2003-09-30 |
EP1111689A2 (en) | 2001-06-27 |
US6504181B2 (en) | 2003-01-07 |
DE60038216D1 (de) | 2008-04-17 |
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