TWI466332B - Led封裝結構 - Google Patents
Led封裝結構 Download PDFInfo
- Publication number
- TWI466332B TWI466332B TW100113634A TW100113634A TWI466332B TW I466332 B TWI466332 B TW I466332B TW 100113634 A TW100113634 A TW 100113634A TW 100113634 A TW100113634 A TW 100113634A TW I466332 B TWI466332 B TW I466332B
- Authority
- TW
- Taiwan
- Prior art keywords
- led chip
- led
- package structure
- carrier
- substrate
- Prior art date
Links
- 239000000758 substrate Substances 0.000 claims description 27
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 239000012780 transparent material Substances 0.000 claims description 2
- 238000000605 extraction Methods 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
Classifications
-
- 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
- H01L33/483—Containers
- H01L33/486—Containers adapted for surface mounting
-
- 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
- H01L33/20—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 particular shape, e.g. curved or truncated substrate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- 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
- H01L2224/47—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
- H01L2224/4805—Shape
- H01L2224/4809—Loop shape
- H01L2224/48091—Arched
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- 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
- H01L2224/47—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
- H01L2224/48225—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 non-metallic, e.g. insulating substrate with or without metallisation
- H01L2224/48227—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 non-metallic, e.g. insulating substrate with or without metallisation connecting the wire to a bond pad of the item
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Led Device Packages (AREA)
Description
本發明涉及一種LED封裝結構,尤其涉及一種具有較寬光場的LED封裝結構。
LED產業是近幾年最受矚目的產業之一,發展至今,LED產品已具有節能、省電、高效率、反應時間快、壽命週期時間長、且不含汞、具有環保效益等優點。然而一般LED封裝結構中的LED晶片設置於基板的頂面上,該LED晶片發出的光線中,僅有一半多一點(約百分之五十六左右)可穿越所述LED晶片表面發射出去,其餘的光線大都直接被LED封裝結構吸收或是LED晶片內部的全反射而喪失。LED高功率產品為提高獲得所需要亮度,通常僅針對LED晶片的光萃取率作改善,其解決的方式不外乎有兩種,一是在該LED晶片磊晶前增設光萃取結構層,一是在該LED晶片磊晶後對磊晶結構表面進行粗糙化,以破壞磊晶結構的內部全反射作用,從而減少光的損失。但是,這樣的解決方式會增加制程的複雜性且花費昂貴,並非經濟方便的改善方式。
有鑒於此,有必要提供一種結構簡易、發光光場寬廣的LED封裝結構。
一種LED封裝結構,包括一基板、一LED晶片以及一覆蓋層。該基
板具有至少兩電極以及一載板,該載板具有一承載表面,該承載表面高於所述基板的頂面,並用以對應設置該LED晶片。該LED晶片與該電極電性連接,並通過該覆蓋層包覆。
上述的LED封裝結構中,由於該LED晶片的設置位置高於該基板的頂面,且該承載表面對應該LED晶片,使該LED晶片發出的光線不受該基板的阻擋或吸收,使穿越該LED晶片表面的發散角度更加寬廣,從而可以增加該LED晶片發光的光場,提高該LED封裝結構的亮度,其結構簡單、製造成本低。
10、20、30‧‧‧封裝結構
12、22‧‧‧基板
122、222‧‧‧頂面
124、224、324‧‧‧底面
126、226、38‧‧‧電極
128、228、32‧‧‧載板
1282、2282、322‧‧‧承載表面
14、24、34‧‧‧LED晶片
142‧‧‧發光層
16、26、36‧‧‧覆蓋層
18、28、382‧‧‧導線
200‧‧‧反射杯
θ‧‧‧出光角度
ψ‧‧‧夾角
H‧‧‧高度
D‧‧‧距離
圖1是本發明LED封裝結構第一實施例組合剖視圖。
圖2是圖1封裝結構的載板與LED晶片的組合剖視圖。
圖3是圖2載板與LED晶片組合的部分放大剖視圖。
圖4是本發明LED封裝結構第二實施例的剖視圖。
圖5是本發明LED封裝結構第三實施例的剖視圖。
下面將結合附圖對本發明作一具體介紹。
請參閱圖1,所示為本發明LED封裝結構第一實施例的組合剖視圖,該LED封裝結構10,包括一基板12、一LED晶片14以及一覆蓋層16。該基板12包含有一頂面122以及一底面124,並具有至少兩電極126以及一載板128,該電極126以及該載板128均自該基板12的頂面122延伸至該基板12的底面124。該載板128具有一承載表面1282,該承載表面1282高於該基板12的頂面122,並用以對應設置該LED晶片14。該LED晶片14與該電極126之間具有導線18以達
成電性連接,並通過該覆蓋層16包覆。該覆蓋層16為透明材質並且可以包含具有螢光粉。該LED晶片14在該承載表面1282上,與該基板12的頂面122間具有一定距離,使該LED晶片14發射的出光角度較不會被該基板12阻擋或吸收,相較於目前設置於該基板12頂面122的LED晶片14,本實施例的該LED晶片14具有更寬廣的出光角度。該LED晶片14的發射光線直接穿越所述LED晶片14表面的出光角度θ大約等於二百四十度(如圖2所標示),該LED晶片14的出光角度θ可以依據該LED晶片14與該載板128承載表面1282對應設置的關係獲得。該LED晶片14與該載板128承載表面1282對應設置的關係式為tan ψ≦H/D,其中ψ為該LED晶片14與該載板128承載表面1282之間的夾角,H為該LED晶片14內部發光層142到達該LED晶片14底面的高度,D為該LED晶片14底面側邊與該載板128側邊之間的距離(如圖3中的放大圖所標示)。該LED晶片14的出光角度θ擴大,使該LED晶片14的光場更寬,從而使得該LED封裝結構10的亮度可以提高。
請再參閱圖4,是本發明LED封裝結構20第二實施例的剖視圖。該LED封裝結構20,包括一基板22、一LED晶片24以及一覆蓋層26,相同於該LED封裝結構10,該基板22包含有一頂面222以及一底面224,並具有至少兩電極226以及一載板228。該載板228具有一承載表面2282,該承載表面2282高於該基板22的頂面222,並用以對應設置該LED晶片24。該LED晶片24與該電極226之間具有導線28以達成電性連接,並通過該覆蓋層26包覆。不同在於,該基板22的頂面222具有一反射杯200。該反射杯200環繞該LED晶片24罩設,使具有寬光場發光的該LED晶片24發出的光線,能集中由該反射杯200開口處的該覆蓋層26發射,從而更加提升該LED封裝結
構20的發光亮度。
最後,請再參閱圖5的LED封裝結構30,包括一載板32、一LED晶片34、一覆蓋層36以及至少兩電極38。不同於第一實施例的該LED封裝結構10,本第三實施例的LED封裝結構30並不具有該基板12。該載板32具有一承載表面322以及一底面324。該承載表面322與該底面324間隔具有一定距離,使該載板32具有一定的高度。該承載表面322用以對應設置該LED晶片34,該LED晶片34與該電極38之間具有導線382以達成電性連接,並通過該覆蓋層36包覆該LED晶片34及其電性連接的該電極38和該載板32。該載板32也可設置在其中一電極38上(圖中未標示),使該LED晶片34的電性連接以及該LED封裝結構30的封裝運作更加便捷。該LED晶片34通過在對應的該承載表面322上設置,同樣可具有寬光場的出光角度,使該LED封裝結構30的發光亮度更加提升、結構簡化。
綜上,本發明LED封裝結構,該LED晶片14、24以及34對應該載板128、228、32的承載表面1282、2282、322設置,使該LED晶片14、24以及34在該LED封裝結構10、20、30中的位置被提高,發光的出光角度更寬廣,從而可以最簡易及低成本的方式提升LED封裝結構的發光亮度。
應該指出,上述實施例僅為本發明的較佳實施方式,本領域技術人員還可在本發明精神內做其他變化。這些依據本發明精神所做的變化,都應包含在本發明所要求保護的範圍之內。
10‧‧‧封裝結構
12‧‧‧基板
122‧‧‧頂面
124‧‧‧底面
126‧‧‧電極
128‧‧‧載板
1282‧‧‧承載表面
14‧‧‧LED晶片
16‧‧‧覆蓋層
18‧‧‧導線
Claims (8)
- 一種LED封裝結構,包括一基板、一LED晶片以及一覆蓋層,該基板具有至少兩電極以及一載板,該載板具有一承載表面,該承載表面高於所述基板的頂面,並用以對應設置該LED晶片,該LED晶片與該電極電性連接,並通過該覆蓋層包覆,該承載表面設置該LED晶片的對應關係符合下列關係式:tan ψ≦H/D,其中ψ為所述LED晶片與所述承載表面之間的夾角,H為所述LED晶片內部具有的發光層到達所述LED晶片底面的高度,D為所述LED晶片底面側邊與所述載板側邊之間的距離。
- 如申請專利範圍第1項所述的LED封裝結構,其中,該基板包含有一頂面以及一底面,該電極以及該載板均自該基板的頂面延伸至該基板的底面。
- 如申請專利範圍第1項所述的LED封裝結構,其中,該基板的頂面具有一反射杯,該反射杯環繞該LED晶片罩設。
- 如申請專利範圍第1項所述的LED封裝結構,其中,該覆蓋層為透明材質並且可以包含具有螢光粉。
- 一種LED封裝結構,包括一載板、一LED晶片、一覆蓋層以及至少兩電極,該載板具有一承載表面,該承載表面對應設置該LED晶片,該LED晶片與該電極電性連接,並通過該覆蓋層包覆,該承載表面設置該LED晶片的對應關係符合下列關係式:tan ψ≦H/D,其中ψ為所述LED晶片與所述承載表面之間的夾角,H為所述LED晶片內部具有的發光層到達所述LED晶片底面的高度,D為所述LED晶片底面側邊與所述載板側邊之間的距離。
- 如申請專利範圍第5項所述的LED封裝結構,其中,該載板具有一底面, 該承載表面與該底面間隔具有一定距離,使該載板具有一定的高度。
- 如申請專利範圍第5項所述的LED封裝結構,其中,該載板設置在其中一電極上。
- 如申請專利範圍第5項所述的LED封裝結構,其中,該覆蓋層包覆該LED晶片及其電性連接的該電極和該載板。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201110041287.9A CN102646773B (zh) | 2011-02-17 | 2011-02-17 | Led封装结构及制程 |
Publications (2)
Publication Number | Publication Date |
---|---|
TW201236208A TW201236208A (en) | 2012-09-01 |
TWI466332B true TWI466332B (zh) | 2014-12-21 |
Family
ID=46652029
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW100113634A TWI466332B (zh) | 2011-02-17 | 2011-04-20 | Led封裝結構 |
Country Status (3)
Country | Link |
---|---|
US (1) | US20120211786A1 (zh) |
CN (1) | CN102646773B (zh) |
TW (1) | TWI466332B (zh) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6229160B1 (en) * | 1997-06-03 | 2001-05-08 | Lumileds Lighting, U.S., Llc | Light extraction from a semiconductor light-emitting device via chip shaping |
US20080067534A1 (en) * | 2006-07-21 | 2008-03-20 | Epistar Corporation | Light emitting device |
US20100181587A1 (en) * | 2009-01-16 | 2010-07-22 | Everlight Electronics Co., Ltd. | LED packaging structure and fabricating method thereof |
US20100207152A1 (en) * | 2009-02-17 | 2010-08-19 | Jung Min Won | Lighting emitting device package |
-
2011
- 2011-02-17 CN CN201110041287.9A patent/CN102646773B/zh active Active
- 2011-04-20 TW TW100113634A patent/TWI466332B/zh active
- 2011-10-20 US US13/278,113 patent/US20120211786A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6229160B1 (en) * | 1997-06-03 | 2001-05-08 | Lumileds Lighting, U.S., Llc | Light extraction from a semiconductor light-emitting device via chip shaping |
US20080067534A1 (en) * | 2006-07-21 | 2008-03-20 | Epistar Corporation | Light emitting device |
US20100181587A1 (en) * | 2009-01-16 | 2010-07-22 | Everlight Electronics Co., Ltd. | LED packaging structure and fabricating method thereof |
US20100207152A1 (en) * | 2009-02-17 | 2010-08-19 | Jung Min Won | Lighting emitting device package |
Also Published As
Publication number | Publication date |
---|---|
US20120211786A1 (en) | 2012-08-23 |
CN102646773A (zh) | 2012-08-22 |
CN102646773B (zh) | 2015-02-04 |
TW201236208A (en) | 2012-09-01 |
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