WO2016110434A1 - Leiterrahmen - Google Patents
Leiterrahmen Download PDFInfo
- Publication number
- WO2016110434A1 WO2016110434A1 PCT/EP2015/081367 EP2015081367W WO2016110434A1 WO 2016110434 A1 WO2016110434 A1 WO 2016110434A1 EP 2015081367 W EP2015081367 W EP 2015081367W WO 2016110434 A1 WO2016110434 A1 WO 2016110434A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lead frame
- tool
- frame
- indentation
- mold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/85—Packages
- H10H20/857—Interconnections, e.g. lead-frames, bond wires or solder balls
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W90/00—Package configurations
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/50—Bond wires
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
- H10W72/50—Bond wires
- H10W72/531—Shapes of wire connectors
- H10W72/536—Shapes of wire connectors the connected ends being ball-shaped
Definitions
- the invention relates to a leadframe, in particular for the production of optoelectronic components according to claim 1, a method for producing a leadframe according to claim 13 and a mold tool according to claim 14.
- Lead frames as known from DE 102012109159 AI, are used to electrically contact, for example, electrical or opto ⁇ electronic components.
- the object of the invention is to provide an improved lead frame.
- the object of the invention is achieved by the lead frame according to claim 1.
- the object of the invention is achieved by the method for producing a leadframe according to claim 13.
- the object is achieved by the mold tool according to claim 14.
- An advantage of the lead frame described is that a mechanical stability of the lead frame is verbes ⁇ sert. This is achieved in that the lead frame has an impression at least in one longitudinal side, which assists a stability of the longitudinal side against bending. In this way, for example, thermally different coefficients of expansion between the lead frame and a molding material can be compensated.
- the use of an impression for the stabilization of the lead frame has the advantage that the imprint a ⁇ times and advertising cost incorporated in the lead frame can be routed.
- the lead frame has an impression on two longitudinal sides, in particular on two opposite longitudinal sides. In this way, a further stabilization of the lead frame is achieved.
- the embossment is arranged in a middle of the longitudinal side. In this way, a good stabilization of the ladder frame against bending is achieved with little effort.
- the ladder frame is divided by a transverse web into two fields. In this way, a further mechanical stabilization of the lead frame is made possible.
- the imprint is formed as an elongate shape, wherein the elongated shape is aligned ent ⁇ long one longitudinal side of the frame.
- the embossing has a length which is at least twice as great as the width of the embossment. As a result, a good stabilization of the lead frame is achieved with the least possible area.
- the imprint has a depth in the range of 5 to 100 ym. Tests have shown that embossing with these depth ranges is suitable for good stabilization of the lead frame. In addition, a Bebuldi ⁇ supply or deterioration of the workability of the lead frame is prevented by the relatively small depth.
- the embossing has a length in the range of 3 mm to 15 mm, in particular a range between 5 mm and 10 mm.
- the embossing has a width in the range of 0.5 mm to 3 mm. This ei ⁇ ne adequate stabilization of the lead frame is achieved.
- An advantage of the method described is that the impression is easily introduced into the lead frame. This is achieved in that in egg ⁇ nem molding process in which the lead frame is provided with a molding material, is also introduced into the lead frame by using an embossing tool, the embossing ⁇ . Thus, no separate process step for introducing the impression is required.
- the impression is introduced by means of a molding tool, wherein at least one tool ⁇ part has an embossing tool.
- the embossing tool is formed in ⁇ example in the form of an edge.
- FIG. 1 shows a schematic view of a leadframe from above
- FIG. 2 shows a further embodiment of a leadframe from above
- FIG. 3 is an enlarged view of an impression
- FIG. 4 is a cross section through an impression
- Fig. 6 shows the mold during the molding process
- Fig. 7 is a schematic representation of a section ei ⁇ nes lead frame
- Fig. 8 shows a schematic representation of a component.
- the lead frame 1 shows a schematic top view of a leadframe 1 which has a frame 2 and a plurality of not explicitly shown leadframe sections which are connected to the frame 2.
- the lead frame portions are adapted to provide electrical contact surfaces ⁇ for an electrical component, in particular an optoelectronic component.
- at least two leadframe sections are connected to an electrical component.
- the component is placed on at least one leadframe section 3 and connected to the at least one leadframe section 3 or at least two leadframe sections 3 by means of a connection compound, a so-called Moldmas ⁇ se.
- the lead frame has, for example, a thickness in the range of 150 to 200 ym.
- the lead frame 1 is formed for example of copper and is for example by a
- the lead frame 1 has two longitudinal sides 4, 5 and two
- an impression 8 is introduced in the longitudinal sides 4, 5 and in the transverse sides 6, 7.
- an impression 8 can also be introduced only in one longitudinal side 4.
- an impression 8 can be made in both longitudinal sides 4, 5.
- an impression 8 may be introduced into at least one or both lateral sides 6, 7.
- the embossment 8 is arranged ⁇ respectively in the middle of a length of the longitudinal side or transverse side.
- the indentation 8 can also be arranged at a different position along the longitudinal side or along the transverse side.
- the indentation 8 may be arranged centrally with respect to a width of the frame.
- FIG. 2 shows a further embodiment of a leadframe 1, the leadframe 1 having a transverse web 9.
- the transverse web 9 is arranged parallel to the transverse sides 6, 7 in the middle of the longitudinal sides 4, 5 and connected to the two longitudinal sides 4, 5.
- an impression 8 in the middle of the longitudinal sides 4, 5 in the longitudinal sides 4, 5 are arranged.
- the impressions 8 are each arranged in the region in which the transverse web 9 opens into the longitudinal sides 4, 5.
- the lead frame 1 is usually made of a metal sheet.
- a mold material 10 is applied to the lead frame 1, wherein electrical components 11 areLet ⁇ tet in the mold material 10.
- the components 11, for example, electrical ⁇ cal and / or electronic components or optoelectronic ⁇ specific components such as light-emitting Dio ⁇ represent the or laser diodes.
- plastic or silicone-based molding material can be used to ⁇ .
- epoxy can be used as the molding material.
- more indentations 8 can as explained with reference to Fig. 1 in the longitudinal sides 4.5 and / or more indentations be vorgese ⁇ hen in the lateral sides 6,7 of the lead frame 1 8.
- the Eingar ⁇ conditions 8 on an upper side that is, on the side on which the components 11 are arranged on the lead frame 1, introduced.
- the indentations 8 can be placed on a bottom of the lead frame 1 or on different sides of Lei ⁇ terrahmens.
- the molding material 10 is in Formed in the form of a sheet-like layer, are embedded in the components 1 at least with the side walls, where ⁇ protrude in particular the upper sides of the components 11 from the d mendmaterial 10.
- ⁇ using the molding material 10 having we ⁇ iquess a lead frame portion 3 is mechanically connected with a device. 11 FIG.
- the illustrated portion of the lead frame 1 may be a longitudinal side or a Quersei ⁇ te or a transverse web.
- the indentation 8 is designed in the form of an elongated structure, in particular in the form of a rectangular strip. Depending on the selected execution ⁇ can form the impression 8 other shapes, for example a round, rectangular or have a serpentine shape.
- the indentation 8 is aligned in its longitudinal direction parallel to the longitudinal direction 12 of the frame 2. From ⁇ pending chosen by the embodiment, the impression 8 may be as wide as at least twice as long.
- the indentation 8 may have a length which is in the range of 3 mm to 15 mm. In particular, the indentation 8 may have a length which is between 5 mm and 10 mm. Furthermore, the indentation 8 may have a width 13 which is in the range of 0.5 mm to 3 mm. 4 shows a cross-section along the longitudinal extension of the indentation 8. The indentation 8 can have a depth 15 which, for example, lies in the range from 5 .mu.m to 100 .mu.m.
- FIG. 5 shows a schematic representation of a molding tool 16 which has a first and a second tool part 17, 18. The second tool part 18 is provided to receive the lead frame 1.
- the first tool part 17 is provided to communicate with the second mold tool 18 Mold space 21 to form the lead frame 1 and mold a molding material 20 accordingly.
- the first tool part 17 on an embossing tool 19 which is arranged on an underside of the tool part 17 and the lead frame 1 is supplied ⁇ Wandt.
- the embossing tool 19 may be formed, for example in the form of an edge of the material of the first tool part 17.
- Fig. 6 shows the molding tool 16 in a closed Po ⁇ sition in which the embossing tool 19 impresses the impression 8 in the lead frame 1 and also molding material 20 flows into the Moldraum 21 between the tool parts 17, 18.
- the molding material is heated to temperatures of for example 170 to 180 ° C in the mold. After removal from the mold and a final cooling process there may be the risk that due to un ⁇ different thermal expansion coefficients of the molding material and the material of the lead frame bending or bending of the lead frame 1 takes place.
- the tool parts 17, 18 are separated from each other and the frame 1 is removed. In this case, the frame 1 is formed, for example, as shown in Fig. 2. By introducing the indentation 8, the leadframe 1 after removal from the mold 16 has a lower deflection.
- the indentation 8 can also be introduced into the frame 1 before the molding process.
- Fig. 7 shows a schematic representation of a section of a simple embodiment of a lead frame 1, wherein two lead frame sections 3,22 are shown.
- FIG. 8 shows a schematic side view of a component with a component 11.
- the component 11 is mounted on the first leadframe section 3.
- the construction ⁇ element 11 using the mold material is mechanically connected to the second lead frame section 22.
- the component 11 is electrically connected to the second leadframe section 22 via a bonding wire 23.
Landscapes
- Led Device Packages (AREA)
- Lead Frames For Integrated Circuits (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017532045A JP2018500765A (ja) | 2015-01-05 | 2015-12-29 | リードフレーム |
| DE112015005886.9T DE112015005886A5 (de) | 2015-01-05 | 2015-12-29 | Leiterrahmen |
| US15/541,464 US10236428B2 (en) | 2015-01-05 | 2015-12-29 | Lead frame |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015100025.3A DE102015100025A1 (de) | 2015-01-05 | 2015-01-05 | Leiterrahmen |
| DE102015100025.3 | 2015-01-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2016110434A1 true WO2016110434A1 (de) | 2016-07-14 |
Family
ID=55072642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2015/081367 Ceased WO2016110434A1 (de) | 2015-01-05 | 2015-12-29 | Leiterrahmen |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US10236428B2 (de) |
| JP (1) | JP2018500765A (de) |
| DE (2) | DE102015100025A1 (de) |
| WO (1) | WO2016110434A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7021970B2 (ja) * | 2018-02-13 | 2022-02-17 | 株式会社三井ハイテック | リードフレーム、樹脂付きリードフレーム、樹脂付きリードフレームの製造方法および半導体装置の製造方法 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19745243A1 (de) * | 1996-10-11 | 1998-04-16 | Denso Corp | Verfahren zum Herstellen eines mit Harz verschlossenen Halbleiterbauelements und Prägevorrichtung dafür |
| JP2002184914A (ja) * | 2000-12-14 | 2002-06-28 | Nippon Inter Electronics Corp | 複合半導体装置 |
| DE102011016566A1 (de) * | 2011-03-07 | 2012-09-13 | Osram Opto Semiconductors Gmbh | Leiterrahmen für optoelektronische Bauelemente und Verfahren zur Herstellung optoelektronischer Bauelemente |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8236612B2 (en) * | 2002-04-29 | 2012-08-07 | Unisem (Mauritius) Holdings Limited | Partially patterned lead frames and methods of making and using the same in semiconductor packaging |
| JP2004146729A (ja) * | 2002-10-28 | 2004-05-20 | Renesas Technology Corp | 半導体樹脂封止用金型及び樹脂封止方法 |
| JP5144294B2 (ja) * | 2008-02-06 | 2013-02-13 | オンセミコンダクター・トレーディング・リミテッド | リードフレームおよびそれを用いた回路装置の製造方法 |
| US20120223423A1 (en) * | 2011-03-02 | 2012-09-06 | Texas Instruments Incorporated | Lead Frame Strip with Rails Having Bow Reducing Ribs |
| JP5762078B2 (ja) * | 2011-03-28 | 2015-08-12 | 新光電気工業株式会社 | リードフレーム |
| JP5904001B2 (ja) * | 2012-05-01 | 2016-04-13 | 大日本印刷株式会社 | Led素子搭載用リードフレーム、樹脂付リードフレーム、多面付ledパッケージ、ledパッケージの製造方法および半導体素子搭載用リードフレーム |
| DE102012109159A1 (de) | 2012-09-27 | 2014-03-27 | Osram Opto Semiconductors Gmbh | Leiterrahmenverbund, Gehäuseverbund, Baugruppenverbund und Verfahren zum Ermitteln mindestens eines Messwerts einer Messgröße einer elektronischen Baugruppe |
| CN104952825B (zh) * | 2014-03-31 | 2019-01-08 | 恩智浦美国有限公司 | 包含具有槽口内引线的引线框架的半导体器件 |
-
2015
- 2015-01-05 DE DE102015100025.3A patent/DE102015100025A1/de not_active Withdrawn
- 2015-12-29 DE DE112015005886.9T patent/DE112015005886A5/de not_active Ceased
- 2015-12-29 US US15/541,464 patent/US10236428B2/en not_active Expired - Fee Related
- 2015-12-29 WO PCT/EP2015/081367 patent/WO2016110434A1/de not_active Ceased
- 2015-12-29 JP JP2017532045A patent/JP2018500765A/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19745243A1 (de) * | 1996-10-11 | 1998-04-16 | Denso Corp | Verfahren zum Herstellen eines mit Harz verschlossenen Halbleiterbauelements und Prägevorrichtung dafür |
| JP2002184914A (ja) * | 2000-12-14 | 2002-06-28 | Nippon Inter Electronics Corp | 複合半導体装置 |
| DE102011016566A1 (de) * | 2011-03-07 | 2012-09-13 | Osram Opto Semiconductors Gmbh | Leiterrahmen für optoelektronische Bauelemente und Verfahren zur Herstellung optoelektronischer Bauelemente |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112015005886A5 (de) | 2017-09-28 |
| DE102015100025A1 (de) | 2016-07-07 |
| US10236428B2 (en) | 2019-03-19 |
| JP2018500765A (ja) | 2018-01-11 |
| US20170373233A1 (en) | 2017-12-28 |
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