WO2015011028A1 - Optoelektronischer halbleiterchip, halbleiterbauelement und verfahren zur herstellung von optoelektronischen halbleiterchips - Google Patents
Optoelektronischer halbleiterchip, halbleiterbauelement und verfahren zur herstellung von optoelektronischen halbleiterchips Download PDFInfo
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- WO2015011028A1 WO2015011028A1 PCT/EP2014/065445 EP2014065445W WO2015011028A1 WO 2015011028 A1 WO2015011028 A1 WO 2015011028A1 EP 2014065445 W EP2014065445 W EP 2014065445W WO 2015011028 A1 WO2015011028 A1 WO 2015011028A1
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- semiconductor
- carrier
- trench
- semiconductor chip
- region
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 204
- 230000005693 optoelectronics Effects 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 230000005855 radiation Effects 0.000 claims abstract description 20
- 239000002131 composite material Substances 0.000 claims description 54
- 238000000034 method Methods 0.000 claims description 51
- 239000000463 material Substances 0.000 claims description 32
- 238000009413 insulation Methods 0.000 claims description 24
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- 238000012986 modification Methods 0.000 claims description 6
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- 239000000126 substance Substances 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims 1
- 238000007373 indentation Methods 0.000 abstract description 14
- 238000002955 isolation Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 91
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- 150000001875 compounds Chemical class 0.000 description 7
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- 238000000465 moulding Methods 0.000 description 7
- 230000008021 deposition Effects 0.000 description 6
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- 238000000608 laser ablation Methods 0.000 description 4
- 238000003486 chemical etching Methods 0.000 description 3
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- 229910000679 solder Inorganic materials 0.000 description 3
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- 101100008047 Caenorhabditis elegans cut-3 gene Proteins 0.000 description 2
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
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- 229910052710 silicon Inorganic materials 0.000 description 2
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- 230000003595 spectral effect Effects 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/0203—Containers; Encapsulations, e.g. encapsulation of photodiodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01L33/52—Encapsulations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
- H01L2933/0008—Processes
- H01L2933/0025—Processes relating to coatings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
- H01L2933/0008—Processes
- H01L2933/0033—Processes relating to semiconductor body packages
- H01L2933/0066—Processes relating to semiconductor body packages relating to arrangements for conducting electric current to or from the semiconductor body
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/02002—Arrangements for conducting electric current to or from the device in operations
- H01L31/02005—Arrangements for conducting electric current to or from the device in operations for device characterised by at least one potential jump barrier or surface barrier
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01L33/36—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 electrodes
- H01L33/38—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 electrodes with a particular shape
- H01L33/385—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 electrodes with a particular shape the electrode extending at least partially onto a side surface of the semiconductor body
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01L33/44—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 coatings, e.g. passivation layer or anti-reflective coating
Definitions
- Optoelectronic semiconductor chip semiconductor component and method for producing optoelectronic
- the present application relates to an optoelectronic semiconductor chip, to a semiconductor component having such a semiconductor chip, and to a method for producing optoelectronic semiconductor chips.
- One object is to provide an optoelectronic semiconductor chip, in which the risk of an electric
- Short circuit is reduced in the electrical contact. Furthermore, a method is to be specified with which reliable electrically contactable semiconductor chips can be produced in a simple and cost-effective manner.
- the semiconductor chip has a
- the active region is arranged between a first semiconductor layer of a first conductivity type and a second semiconductor layer of a second conductivity type different from the first conductivity type.
- the semiconductor body in particular the active region, contains a III-V compound semiconductor material.
- the semiconductor chip has a carrier.
- the carrier extends in a vertical direction between a first body facing the semiconductor body
- Main surface and a second main surface facing away from the semiconductor body Main surface and a second main surface facing away from the semiconductor body.
- a side surface connects the first main surface and the second main surface with each other.
- the carrier is in particular different from a growth substrate for the epitaxial deposition of the semiconductor layers of the semiconductor body.
- the carrier contains a semiconductor material, such as silicon, germanium or gallium arsenide.
- the semiconductor body is provided with a
- Connecting layer is a cohesive
- connection formed between the semiconductor body and the carrier In a cohesive connection, the in particular prefabricated connection partners are held together by means of atomic and / or molecular forces.
- the compound layer is particularly suitable
- connection layer contains a solder or an electrically conductive adhesive.
- the side surface of the carrier has a first region, the first region having a recess. In plan view of the semiconductor chip, the carrier has a smaller one at the level of the first area
- the second area adjoins the first area, in particular in the vertical direction.
- the second area is especially vertical
- the indentation adjoins the first main surface of the carrier.
- a vertical extent of the indentation is
- the semiconductor chip has a
- Insulation layer on.
- the insulation layer runs
- Insulation layer in plan view of the semiconductor chip all areas of the semiconductor chip, which are not intended for external electrical contact.
- the insulating layer is formed as a contiguous layer formed in a single deposition step that covers both the first and second layers
- the insulating layer covers the
- Insulation layer the first area of the side surface
- Carrier material in the lateral direction so not free, but is covered by the material of the insulating layer.
- the second region is free of the
- the second region of the side surface is formed during the production of the semiconductor chips, in particular when singulating the semiconductor chips from a composite. In the second area of the side surface of the
- Semiconductor chip therefore traces of a separating step, for example, traces of material removal, have.
- the material can be removed by means of coherent radiation, chemically and / or mechanically.
- the semiconductor chip has a carrier and a semiconductor body with an active region provided for generating and / or receiving radiation, wherein the semiconductor body is fastened to the carrier with a connection layer.
- the carrier extends in a vertical direction between a first main surface facing the semiconductor body and a second main surface facing away from the semiconductor body, wherein a side surface interconnects the first main surface and the second main surface combines.
- a first region of the side surface of the carrier has a recess.
- the semiconductor chip has an insulation layer which at least partially covers the semiconductor body and the first region. The second area is free of the insulation layer.
- the insulating layer thus covers the carrier not only on the first main surface, but also at least partially, in particular completely, in the region of the indentation. In the region of the indentation, the side surface of the carrier is therefore not exposed, but is covered by the insulating layer.
- the carrier is electrically conductive.
- Contacting of the semiconductor chip can take place through the carrier, in particular via the material of the carrier itself.
- the insulation layer overlaps a laterally over the
- a semiconductor device according to at least one
- Embodiment on a semiconductor chip and a molded body may in particular comprise at least one or more features of the above-described
- the molding is on the
- Semiconductor chip formed and covers the first region and the second region of the side surface of the carrier in each case at least partially.
- the molding compound can completely cover the second area.
- Radiation passage surface is, for example, is free of material of the molding.
- the semiconductor device on a contact track, which from one of the second main surface of the carrier remote from the front side of the semiconductor chip over the first region of the carrier on a front side of
- the semiconductor component may have one or more electrical contacts for external electrical contacting on the front side of the molding and / or on the back side of the molding.
- the contact track does not directly adjoin the carrier at any point. The risk of an electrical short circuit between the contact track and the carrier is avoided.
- the semiconductor layer sequence comprises in particular one for the production and / or for
- Receiving radiation provided active area and is For example, in a plurality of semiconductor bodies
- the semiconductor layer sequence is on the
- Carrier composite disposed and attached, for example by means of a cohesive connection with the carrier composite.
- the carrier composite has a side facing the semiconductor layer sequence and one of the
- the method comprises the formation of trench-shaped depressions, which are at least partially between adjacent ones
- Semiconductor bodies run and extend into the carrier network.
- the trench-shaped depressions do not extend completely through the carrier composite in the vertical direction.
- the carrier composite in the vertical direction.
- trench-shaped depressions by means of coherent radiation, in particular by means of a laser in the pulse mode, for example with a pulse duration in the picosecond or nanosecond range formed.
- a chemical method can be used, for example
- a mechanical process such as a grinding process or a sawing process.
- a wafer saw is suitable.
- the formation of the trench-shaped depressions can be any shape.
- Semiconductor bodies are parallel to a first direction.
- the method comprises forming an insulation layer that covers the semiconductor layer sequence and the side surfaces of the semiconductor layer
- trench-shaped depressions each covered at least partially.
- the formation of the insulation layer takes place
- CVD Chemical Vapor Deposition
- PVD Physical Vapor
- an ALD method (Atomic Layer.) Is suitable for the deposition of the insulation layer
- a conformal covering of the composite ie a coating following the topography of the composite, can be achieved in a particularly reliable manner. This can already be very thin
- the method comprises singulating the composite into the plurality of semiconductor chips, wherein the singulation is performed by
- Separation cuts take place, which run at least partially along the trench-shaped depressions.
- separating cuts in this context does not imply any limitation with respect to the method of production. ⁇ br /> ⁇ br/>
- the separating cuts can be formed in particular mechanically, for example by splitting, breaking or sawing, chemically, for example by wet-chemical or dry-chemical etching or by means of coherent radiation where the singulation cuts run along the trench-shaped depressions, the
- Singulation cuts are formed in particular in a plan view of the composite completely within the trench-shaped recesses.
- a front side of the carrier composite facing the semiconductor layer sequence is free of metallic material when singulated in the region of the trench-shaped depressions. When singling is therefore no front-applied metallic
- a rear side of the semiconductor layer sequence facing away from the semiconductor layer sequence is
- the carrier composite is thinned, in particular after the formation of the trench-shaped depressions.
- the carrier composite can mechanically stabilize the semiconductor layer sequence particularly reliably prior to thinning.
- the singulation cuts running along the trench-shaped depressions have a smaller width during singulation than the trench-shaped depressions. Forming the singulation cuts within the trench-like
- an electrical contact surface is formed on the semiconductor bodies and those along the trench-shaped depressions extending singulation cuts are each formed between adjacent semiconductor bodies such that a center line of the singulation cuts further from the nearest contact surface of the adjacent
- Semiconductor body is removed as a centerline of the associated trench-shaped depression.
- the contact surfaces are in particular not centered on the respective
- Semiconductor bodies arranged such that the contact surface of a semiconductor chip adjacent on one side of the trench-shaped depression closer to the trench-shaped recesses than the contact surface of the adjacent on the other side of the trench-shaped depression semiconductor chip.
- the carrier when separating from the trench-shaped
- the carrier composite can also be separated from the side, on which the trench-shaped
- Recesses are formed, in particular of the
- a material modification that is complete in the vertical direction or only in regions takes place, for example, a material removal, by laser radiation.
- a material removal for example, a laser ablation process, for example by means of a laser in pulsed operation with pulse durations in the nanosecond or
- the singulation can be carried out along by the material modification
- the material modification can induce a mechanical stress in the material, which the break points
- a stealth dicing method is suitable for this purpose.
- a chemical reaction takes place during singulation in the carrier composite
- the method described is particularly suitable for producing a semiconductor chip described above.
- the semiconductor chip mentioned features can therefore be used for the process and
- FIG. 1 shows an exemplary embodiment of a semiconductor chip in a schematic sectional view
- Figures 2A and 2B an embodiment of a
- Figures 3A to 3F a first embodiment of a
- FIG. 1 An exemplary embodiment of a semiconductor chip 1 is shown in FIG. 1 in a schematic sectional view.
- Semiconductor chip 1 comprises a semiconductor body 2 and a carrier 5.
- the semiconductor body 2 comprises one for generating radiation and / or for receiving radiation provided active region 20, between a first semiconductor layer 21 of a first conductivity type
- n-type (For example, n-type) is arranged.
- III-V compound semiconductor material is suitable for the semiconductor layer sequence.
- III-V compound semiconductor materials are for generating radiation in the
- Al x In y Gai x - y N in particular for blue to green radiation
- Al x In y Gai x - y P in particular for yellow to red
- the semiconductor body 2 is fastened to the carrier by means of a connection layer 6, for example a solder layer or an electrically conductive adhesive layer.
- the support 5 is used for the mechanical stabilization of the semiconductor body 2.
- a growth substrate for the particular epitaxial deposition of the semiconductor layers of the semiconductor body is no longer necessary for this and therefore removed.
- Semiconductor chip in which the growth substrate is removed, is also referred to as a thin-film semiconductor chip.
- the carrier 5 itself to be the growth substrate for the semiconductor layers of the Semiconductor body 2 is. In this case, a connecting layer between the semiconductor body and the carrier is not required.
- the carrier 5 extends in a vertical direction between a first main surface 53 facing the semiconductor body 2 and a second main surface 54. Between the first main surface and the second main surface there extends a lateral surface 51, which lateral the semiconductor body
- Semiconductor material for example silicon, germanium or gallium arsenide.
- another material is conceivable, for example a metal.
- the side surface 51 has a first region 511 and a second region 512 adjoining the first region. In the first area, the carrier 5 has a recess 55. The side surface 51 extends in the vertical direction in
- the lateral extent of the indentation is preferably at least 0.5 ym and at most 20 ym.
- the second region extends in the vertical direction between the first region 511 and the second main surface 54.
- the indentation 55 adjoins the first main surface 53 of the carrier 5.
- the carrier in the region of the indentation has a smaller cross-sectional area than in the second region 512.
- Another side surface 52 of the carrier is free of a recess.
- the carrier may also be on more than one side surface, for example on two opposite
- the semiconductor chip On the side facing away from the second main surface 54, the semiconductor chip has a contact surface 81 for the electrical contacting of the semiconductor chip. In the shown
- Semiconductor body 2 in plan view of the semiconductor chip.
- the contact surface can also be arranged laterally spaced from the semiconductor body 2 on the carrier 5.
- the semiconductor chip 1 further comprises an insulation layer 4.
- the insulation layer is formed on a front side 11 of the semiconductor chip.
- the insulation layer 4 covers the semiconductor body 2, in particular its side surfaces. Furthermore, the insulating layer covers over the
- the insulating layer 4 covers the first region 511 of the side surface 51. In the first region 511, the carrier 5 is therefore not exposed, but rather is of the
- Insulation layer especially completely covered.
- the second area 512 is free of the insulation layer.
- the carrier 5 is therefore free in the second area.
- an oxide for example, alumina (such as Al 2 O 3 ) or
- Silicon oxide or a nitride, such as silicon nitride An exemplary embodiment of a semiconductor component is shown schematically in FIGS. 2A and 2B.
- the semiconductor chip 1 is as in FIGS. 2A and 2B.
- the semiconductor device 10 further comprises a molded body 7.
- a molded body 7 In the manufacture of the semiconductor device is a
- Molding material for the molded body 7 to the semiconductor chip 1, in particular to the carrier 5, integrally formed is suitable for forming the shaped body.
- a casting process is generally understood to mean a process by means of which a molding compound can be designed according to a predetermined shape, for example by means of molding, injection molding or
- the molded body 7 adjoins the side surface 51, in particular in the first region 511 and in the second region 512
- the shaped body adjoins the carrier.
- a plastic for example a silicone
- the shaped body can furthermore be mixed with reflective particles, for example TiO 2 particles.
- From the front side 11 of the semiconductor chip is a
- the semiconductor device 10 may have two front-side contacts for external electrical contact or two rear-side contacts or a front-side contact and a rear-side contact. The contacts are not explicitly shown for ease of illustration.
- FIGS. 3A to 3F show a first exemplary embodiment of a method for producing semiconductor chips
- a composite 9 is provided that has a carrier assembly 50 and a semiconductor layer sequence 200.
- the carrier assembly extends in the vertical direction between one of the semiconductor layer sequence 200 facing front 501 and an opposite Rear 502. From the carrier composite will be in the later
- Separation step formed the individual carriers of the semiconductor chips.
- the semiconductor layer sequence 200 is fastened to the carrier composite 50 with a bonding layer 6.
- Deviating from the carrier composite can also by a growth substrate for the
- Semiconductor layer sequence 200 may be formed.
- the semiconductor layer sequence 200 is subdivided by means of mesa trenches 25 into spaced-apart semiconductor bodies 2.
- a trench-shaped recess 56 is formed from the front side.
- the trench-shaped depression extends in the vertical direction in the
- the trench-shaped depressions 56 extend between adjacent semiconductor bodies 2.
- the formation of the trench-shaped depressions can be any shape.
- trench-shaped depressions are also produced by a chemical process, such as a dry chemical etching process. Furthermore, a mechanical process, such as a dry chemical etching process. Furthermore, a mechanical process, such as a dry chemical etching process. Furthermore, a mechanical process, such as a dry chemical etching process. Furthermore, a mechanical process, such as a dry chemical etching process. Furthermore, a mechanical process, such as a dry chemical etching process. Furthermore, a mechanical process, such as a dry chemical etching process. Furthermore, a mechanical process, such as a dry chemical etching process. Furthermore, a mechanical process, such as a dry chemical etching process. Furthermore, a mechanical process, such as a dry chemical etching process. Furthermore, a mechanical process, such as a dry chemical etching process. Furthermore, a mechanical process, such as a dry chemical etching process. Furthermore, a mechanical process, such as a dry chemical etching process. Furthermore, a mechanical process, such as a dry chemical
- Procedures such as a grinding process or sawing application.
- a wafer saw is suitable.
- the connecting layer 6 can be continuous over the
- Connecting layer takes place in this case so when forming the trench-shaped depression.
- a pulsed laser Especially with a pulse duration in the picosecond range, this is particularly suitable because of the low
- an insulating layer 4 is applied to the front side of the composite.
- the insulating layer also covers the trench-shaped depressions and borders in the region of the trench-shaped depressions
- the insulating layer is further formed so that it covers all areas of the front of the composite 9, which are not intended for electrical contacting of the later semiconductor chips. Only the contact surface 81 remains free of the insulating layer 4.
- Insulation layer is particularly suitable for an ALD method. However, it may also find another deposition method, such as a CVD method, such as vapor deposition, or a PVD method, such as sputtering apply.
- a CVD method such as vapor deposition
- PVD method such as sputtering
- the carrier composite 50 is thinned from the back 502 forth.
- the vertical extent of the trench-shaped depressions 56 is preferably between including 10% and including 70%, more preferably between 20% inclusive and 50% inclusive of the thickness of the carrier composite 50 (Figure 3C).
- the composite 9 is separated by means of a stealth dicing method (FIG. 3D). For this purpose, first by means of radiation-induced material modification
- Break point 32 generated so that the irradiated material is under mechanical stress.
- trench-shaped depressions through the carrier by means of optical methods, for example by means of an im
- the trench-shaped depressions 56 manifest themselves in their metal-free configuration, while metallic layers are present between the trench-shaped depressions, for example a solder layer as the connecting layer 6.
- the back of the carrier assembly 50 is also free of metallic material.
- the separating section 3 forms the second area 512 of the side surface 51 of the carrier 5 of the semiconductor chip which is formed during the singulation. In this area, the side surface is free of material of the insulating layer 4th
- the second area may at least partially have traces of the singulation section.
- Insulation layer 4 completely covered.
- the second area 512 arises only after the formation of the
- Insulation layer and is thus free of material
- FIGS. 4A to 4C A second embodiment of a method is shown in FIGS. 4A to 4C.
- Embodiment the provision of the composite, the formation of the trench-shaped depressions and the formation of the insulating layer 4 and the thinning of the carrier composite as described in connection with Figures 3A to 3C.
- the separation in this exemplary embodiment takes place from the front side of the composite 9, as shown in FIG. 4A.
- singulation is performed by means of laser ablation with a pulsed laser with pulse durations in the picosecond or nanosecond range.
- the separating cut 3 can in this case have a width comparable to the grave-shaped recess 56.
- the formation of the singulation section takes place relative to the associated trench-shaped depression 56 such that a centerline 31 of the singulation section 3 extends in a plan view of the composite 9 parallel to a centerline 561 of the trench-shaped depression.
- the separating cut is offset such that the center line 31 of the separating section 3 to the nearest contact surface 81 has a greater distance than the center line of the trench-shaped depression 56. In this way it is ensured that the
- Insulation layer 4 is covered.
- Figures 4B and 4C show the position of the trench-shaped recesses 56 and the separating cuts 3 in plan view of the composite 9. While the trench-shaped recesses are formed only along the first direction, singulation is along the first direction and additionally perpendicular thereto along the second direction ,
- the back 502 of the carrier composite 50 of the described embodiment may deviate also with a metallization, for example for the external
- the separation can also take place by means of a chemical process, for example by means of a plasma process.
- the singulation can also be like in the Related to Figures 3A to 3F described from the back or as described in connection with Figures 4A to 4C forth from the front of the composite ago. In a singling from the front, the
- Insulating layer before forming the separating cut in the region of the separation cut to be performed, ie at the bottom of the trench-shaped recesses 56 are removed. This can be done for example by means of laser ablation, for example by a pulsed laser with pulse durations in the picosecond range.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016528450A JP6277270B2 (ja) | 2013-07-25 | 2014-07-17 | オプトエレクトロニクス半導体チップ、半導体部品、および、オプトエレクトロニクス半導体チップの製造方法 |
CN201480053076.9A CN105580145B (zh) | 2013-07-25 | 2014-07-17 | 光电子半导体芯片、半导体器件以及用于制造光电子半导体芯片的方法 |
US14/906,724 US20160163939A1 (en) | 2013-07-25 | 2014-07-17 | Optoelectronic semiconductor chip, semiconductor component and method of producing optoelectronic semiconductor chips |
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DE102013107971.7 | 2013-07-25 | ||
DE102013107971.7A DE102013107971A1 (de) | 2013-07-25 | 2013-07-25 | Optoelektronischer Halbleiterchip, Halbleiterbauelement und Verfahren zur Herstellung von optoelektronischen Halbleiterchips |
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PCT/EP2014/065445 WO2015011028A1 (de) | 2013-07-25 | 2014-07-17 | Optoelektronischer halbleiterchip, halbleiterbauelement und verfahren zur herstellung von optoelektronischen halbleiterchips |
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US (1) | US20160163939A1 (de) |
JP (1) | JP6277270B2 (de) |
CN (1) | CN105580145B (de) |
DE (1) | DE102013107971A1 (de) |
WO (1) | WO2015011028A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019212944A1 (de) * | 2019-08-28 | 2021-03-04 | OSRAM Opto Semiconductors Gesellschaft mit beschränkter Haftung | Halbleiterbauelement, vorrichtung mit einem halbleiterbauelement und verfahren zur herstellung von halbleiterbauelementen |
Families Citing this family (2)
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DE102014116141B4 (de) * | 2014-11-05 | 2022-07-28 | OSRAM Opto Semiconductors Gesellschaft mit beschränkter Haftung | Verfahren zur Herstellung zumindest eines optoelektronischen Halbleiterchips, optoelektronischer Halbleiterchip sowie optoelektronisches Halbleiterbauelement |
DE102017119344A1 (de) * | 2017-08-24 | 2019-02-28 | Osram Opto Semiconductors Gmbh | Träger und Bauteil mit Pufferschicht sowie Verfahren zur Herstellung eines Bauteils |
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- 2014-07-17 JP JP2016528450A patent/JP6277270B2/ja not_active Expired - Fee Related
- 2014-07-17 US US14/906,724 patent/US20160163939A1/en not_active Abandoned
- 2014-07-17 CN CN201480053076.9A patent/CN105580145B/zh not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
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US20160163939A1 (en) | 2016-06-09 |
DE102013107971A1 (de) | 2015-01-29 |
CN105580145B (zh) | 2018-07-06 |
JP2016531425A (ja) | 2016-10-06 |
CN105580145A (zh) | 2016-05-11 |
JP6277270B2 (ja) | 2018-02-07 |
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