CN203304199U - Semiconductor crystal grain sorting device - Google Patents
Semiconductor crystal grain sorting device Download PDFInfo
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- CN203304199U CN203304199U CN2013203389686U CN201320338968U CN203304199U CN 203304199 U CN203304199 U CN 203304199U CN 2013203389686 U CN2013203389686 U CN 2013203389686U CN 201320338968 U CN201320338968 U CN 201320338968U CN 203304199 U CN203304199 U CN 203304199U
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- crystal grain
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- stickiness
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Abstract
The utility model relates to a semiconductor crystal grain sorting device. The semiconductor crystal grain sorting device at least comprises a crystal grain feeding table, a crystal grain bin division table and a taking unit, wherein a plurality of distribution boxes are placed on the crystal grain bin division table and are covered by sticky blue membranes or white membranes, crystal grains subjected to bin division are fixed on the sticky blue membranes or the white membranes, and the arrangement mode of the crystal grains subjected to the bin division is circular or elliptical or elliptically lantern-shaped. By changing the arrangement mode of Bin, the number of the crystal grains contained in each Bin is increased, the Bin change action in the sorting process is reduced, the sorting efficiency is improved, and the consumption of the blue membranes or white membranes is reduced.
Description
Technical field
The utility model relates to semiconductor device, especially relates to a kind of sorting unit that semiconductor grain is classified.
Background technology
Semiconductor grain manufacturing process complexity, the control of technical process is very large on the impact of crystal grain quality.A complete semiconductor grain manufacture, be broadly divided into die design and the wafer manufacture at initial stage, the wafer sort in mid-term and encapsulation, and the final test in later stage and product turnout.In links, all wish to detect accurately and reliably the characteristic good quality of semiconductor grain.
The light emitting diode (English as Light Emitting Diode, as to be abbreviated as LED) of take is example, and test is that semiconductor grain is manufactured a necessary operation in production process with sorting.LED, after cutting into crystal grain, can be used the device of crystal grain sorting function, and for example the crystal grain separator, carry out the action of crystal grain test and sorting (Bin).Usually for several key parameters such as dominant wavelength (peak length), luminous intensity (mcd), luminous flux (lumens), colour temperature (color temperature), operating voltage (Vf), breakdown reverse voltages (ImA), test and sorting, this link is the production capacity bottleneck of much LED crystal grain and encapsulation manufacturer, is also the important component part of the production of LED crystal grain and packaging cost.
Adopt the crystal grain separator to process and be placed in the assorting room of LED crystal grain in wafer central, the crystal grain separator can automatically be divided in LED crystal grain in different Riving Box (Block) according to the testing standard of setting.And, in assorting room, need to change Riving Box or wafer central to continue the step of crystal grain sorting.
Nowadays electronic industry is more and more higher for the conforming requirement of LED optical property, in early days can divide the separator of 32Bin can not satisfy the demand, the existing even ability of 150Bin of minute 72Bin of supporting of current commercial separator, to meet the strict demand of industry for LED crystal grain wavelength and brightness uniformity.With a crystal grain separator, state in realization in the process of sorting, in prior art, there are the following problems: the crystal grain separator is because the Bin kind number of its sorting is many, and the arrangement mode of crystal grain is generally rectangle, be called for short square piece (as shown in Figure 1), the number of dies that each Bin can hold is more limited, moves more therefore in assorting room, change Bin, affect the overall efficiency of board, had the problem that efficiency is not high.
In addition, crystal grain shipment after general sorting is used to the potted ends client, due to the restricted property of its die bond equipment, working range is about diameter 10cm, if the narrow meeting of crystal grain arrangement pitches causes, the crystal grain counting equipment can't accurately calculate quantity, at present general arrangement pitches is selected 150um, when being used, potted ends can expand, if picking crystal grain smoothly while not expanding die bond, the expansion multiplying power is depending on grain size, but still be limited by the area constraints of square piece, if the expansion multiplying power is too large, can cause part crystal grain exceed die bond equipment can picking maximum magnitude, to production, make troubles.Therefore, need badly and provide the semiconductor grain sorting unit that a kind of efficiency of separation is high to seem particularly important.
Summary of the invention
The technical problems to be solved in the utility model is: the arrangement mode of a kind of Bin of change is provided, increases the number of dies that each Bin can hold, reduce in assorting room and change the Bin action, improve the semiconductor grain sorting unit of the efficiency of separation.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of semiconductor grain sorting unit, at least comprise that crystal grain rollway, crystal grain divide Bin platform and feeding unit, several Riving Boxes are placed in described crystal grain and divide on the Bin platform, the blue film of stickiness or tunica albuginea are coated on Riving Box, crystal grain after minute Bin is fixed on the blue film of stickiness or tunica albuginea, it is characterized in that: the crystal grain arrangement mode after described minute Bin is circular or oval or ellipse bird-caging.
Further, described Riving Box is shaped as rectangle or circular or oval or ellipse bird-caging.
Further, the crystal grain spread geometry after described minute Bin and the shape of Riving Box are consistent.
Further, the crystal grain after described minute Bin is arranged the centre position that is positioned at the blue film of stickiness or tunica albuginea.
Further, the described blue film of stickiness or the tunica albuginea area be coated on Riving Box is 30 ~ 150cm
2.
Further, the crystal grain after described minute Bin accounts for the blue film of stickiness or the tunica albuginea area ratio is 60% ~ 90%.
The utility model beneficial effect compared with prior art is: by changing the arrangement mode of Bin, increase the number of dies that each Bin can hold, reduce in assorting room and change the Bin action, improve the efficiency of separation, reduce blue film or tunica albuginea consumption.
The accompanying drawing explanation
Accompanying drawing is used to provide further understanding of the present utility model, and forms the part of specification, is used from explanation the utility model with embodiment mono-of the present utility model, does not form restriction of the present utility model.In addition, the accompanying drawing data are to describe summary, are not to draw in proportion.
Fig. 1 is conventional minute Bin crystal grain arrangement mode schematic diagram.
Fig. 2 is a kind of semiconductor grain sorting unit of the utility model embodiment 1.
Fig. 3 is minute Bin crystal grain arrangement mode schematic diagram of the utility model embodiment 1.
Fig. 4 is a kind of semiconductor grain sorting unit of the utility model embodiment 2.
Fig. 5 is minute Bin crystal grain of the utility model embodiment 2 and conventional minute Bin crystal grain arrangement mode contrast schematic diagram.
Fig. 6 is minute Bin crystal grain arrangement mode pictorial diagram of the utility model embodiment 3.
Fig. 7 is minute Bin crystal grain arrangement mode pictorial diagram of conventional 10mil * 23mil crystal grain.
Fig. 8 is minute Bin crystal grain arrangement mode pictorial diagram of the utility model embodiment 4.
Fig. 9 is minute Bin crystal grain arrangement mode pictorial diagram of conventional 9mil * 9mil crystal grain.
Figure 10 is minute Bin crystal grain arrangement mode pictorial diagram of the utility model embodiment 5.
Figure 11 is minute Bin crystal grain arrangement mode pictorial diagram of conventional 8mil * 8mil crystal grain.
In figure, each label means:
10: crystal grain divides the Bin platform; 11: Riving Box (Block); 12; Adhesive film; 13: the crystal grain after minute Bin.
The specific embodiment
Below with reference to drawings and Examples, describe embodiment of the present utility model in detail, how the application technology means solve technical problem to the utility model whereby, and the implementation procedure of reaching technique effect can fully understand and implement according to this.
Embodiment 1
Please refer to Fig. 2, a kind of semiconductor grain sorting unit that the utility model embodiment 1 provides, at least comprise that crystal grain rollway (not shown), crystal grain divide Bin platform 10 and feeding unit (not shown), 16 Riving Boxes (Block) 11 are placed in described crystal grain and divide on Bin platform 10, the blue film 12 of stickiness is coated on Riving Box 11, and the crystal grain 13 after minute Bin is fixed on the blue film 12 of stickiness and is positioned at its centre position.
Please refer to Fig. 3, Riving Box 11 is shaped as rectangle, is of a size of 10cm * 10cm, and correspondingly, blue film 12 areas of stickiness that are coated on Riving Box 11 are 100cm
2, being fixed on crystal grain 13 arrangement modes after minute Bin on the blue film 12 of stickiness for oval, its area ratio that occupies blue film is 70%.As can be seen here, with minute Bin crystal grain arrangement mode of routine shown in Figure 1, be that rectangle is compared, crystal grain (chip) number of 1 minute Bin crystal grain arrangement mode of the present embodiment within holding the dotted line frame, also increased the outer number of dies of dotted line frame, namely obviously increased crystal grain (chip) number, so can reduce in assorting room and change the Bin action, improve the efficiency of separation, thereby reduce blue film or tunica albuginea consumption.
Embodiment 2
Please refer to Fig. 4, a kind of semiconductor grain sorting unit that the utility model embodiment 2 provides, at least comprise that crystal grain rollway (not shown), crystal grain divide Bin platform 10 and feeding unit (not shown), 14 Riving Boxes 11 are placed in described crystal grain and divide on Bin platform 10, stickiness tunica albuginea 12 is coated on Riving Box 11, and the crystal grain 13 after minute Bin is fixed on stickiness tunica albuginea 12 and is positioned at its centre position.
Please refer to Fig. 5, Riving Box (Block) 11 is circular, and diameter is 10cm, and correspondingly, the stickiness tunica albuginea 12 be coated on Riving Box 11 is 78.5cm
2Be fixed on crystal grain (not shown in Fig. 5) arrangement mode after minute Bin on stickiness tunica albuginea 12 for circular (circular dashed line frame as shown in Figure 5), be consistent with the shape of Riving Box (Block) 11, namely be arranged in toroidal, its diameter R is 9cm, and area is 63.6cm
2, the area ratio that occupies tunica albuginea is 81%.And a conventional minute Bin crystal grain arrangement mode be square (square dotted line frame as shown in Figure 5), conventional square diagonal L equates with diameter R, and area is 40.5cm
2.As can be seen here, the present embodiment divides Bin crystal grain arrangement mode to compare with routine, except holding crystal grain (chip) number that is positioned at square dotted line frame, can also hold the number of dies that is positioned at outside square dotted line frame and is positioned at the circular dashed line frame, namely obviously increased crystal grain (chip) number, the increase ratio is 57%.
Embodiment 3
Please refer to Fig. 6, Fig. 7 and table 1, minute Bin crystal grain (blue light is LED) of the present embodiment is of a size of 10mil * 23mil, and the crystal grain arrange regional is ellipse bird-caging, diagonal R is of a size of 7cm, can hold a crystal grain number is 10000, and with conventional rectangular arranged zone, its diagonal L is of a size of 7cm, can hold a crystal grain number and be 7000 compares, number increase ratio is 42.9%, so, in assorting room, changes the Bin action and reduces, the efficiency of separation can promote approximately 5%, and blue film consumption reduces approximately 42.9%.
Embodiment 4
Please refer to Fig. 8, Fig. 9 and table 1, minute Bin crystal grain (quaternary system LED) of the present embodiment is of a size of 9mil * 9mil, and the crystal grain arrange regional is ellipse bird-caging, diagonal R is of a size of 7cm, can hold a crystal grain number is 28500, and with conventional rectangular arranged zone, its diagonal L is of a size of 7cm, can hold a crystal grain number and be 20000 compares, number increase ratio is 42.5%, and the efficiency of separation can promote approximately 5%, so, in assorting room, change Bin number and reduce, blue film consumption reduces approximately 42.5%.
Embodiment 5
Please refer to Figure 10, Figure 11 and table 1, minute Bin crystal grain (quaternary system LED) of the present embodiment is of a size of 8mil * 8mil, and the crystal grain arrange regional is ellipse bird-caging, diagonal R is of a size of 7cm, can arrange that to hold a crystal grain number be 33800, with conventional rectangular arranged zone, its diagonal L is of a size of 7cm, can hold a crystal grain number and be 23000 compares, number increase ratio 46.9%, the efficiency of separation can promote approximately 6%, so, in assorting room, change Bin action and reduce, blue film consumption reduces approximately 46.9%.
In addition, due to crystal grain, after undue Bin, also to be used in conjunction with materials such as release liners, electrostatic protection film and it is turned to Da Lan film or large tunica albuginea (as be of a size of 20cm * 20cm) upper, last shipment is used for the encapsulation client.So; the present invention is by changing the arrangement mode of Bin; the number of dies that can hold except increasing each Bin; reduce in assorting room and change the Bin action; improve the efficiency of separation; reduce blue film or tunica albuginea use amount, can also reduce the consumptions of materials such as release liners, electrostatic protection film, thereby save manufacturing cost.
Table 1 ellipse bird-caging of the present utility model and conventional rectangle divide the contrast of Bin crystal grain arrangement mode
The above is only preferred embodiment of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (6)
1. semiconductor grain sorting unit, at least comprise that crystal grain rollway, crystal grain divide Bin platform and feeding unit, several Riving Boxes are placed in described crystal grain and divide on the Bin platform, the blue film of stickiness or tunica albuginea are coated on Riving Box, crystal grain after minute Bin is fixed on the blue film of stickiness or tunica albuginea, it is characterized in that: the crystal grain spread geometry after described minute Bin is circular or oval or ellipse bird-caging.
2. a kind of semiconductor grain sorting unit according to claim 1 is characterized in that: described Riving Box be shaped as rectangle or circular or oval or ellipse bird-caging.
3. a kind of semiconductor grain sorting unit according to claim 1 is characterized in that: the crystal grain spread geometry after described minute Bin and the shape of Riving Box are consistent.
4. a kind of semiconductor grain sorting unit according to claim 1 is characterized in that: the crystal grain after described minute Bin is arranged the centre position that is positioned at the blue film of stickiness or tunica albuginea.
5. a kind of semiconductor grain sorting unit according to claim 1 is characterized in that: the described blue film of stickiness or the tunica albuginea area be coated on Riving Box is 30 ~ 150cm
2.
6. a kind of semiconductor grain sorting unit according to claim 1 is characterized in that: the crystal grain after described minute Bin accounts for the blue film of stickiness or the tunica albuginea area ratio is 60% ~ 90%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203389686U CN203304199U (en) | 2013-06-08 | 2013-06-08 | Semiconductor crystal grain sorting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203389686U CN203304199U (en) | 2013-06-08 | 2013-06-08 | Semiconductor crystal grain sorting device |
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| CN203304199U true CN203304199U (en) | 2013-11-27 |
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| CN2013203389686U Expired - Lifetime CN203304199U (en) | 2013-06-08 | 2013-06-08 | Semiconductor crystal grain sorting device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111326612A (en) * | 2018-12-17 | 2020-06-23 | 台湾爱司帝科技股份有限公司 | Layout method for mixing and assembling LED chips of different grades and display device |
| CN113441413A (en) * | 2021-06-04 | 2021-09-28 | 盐城东紫光电科技有限公司 | Have LED equipment of surveying and picking up function concurrently |
| CN114146955A (en) * | 2021-10-15 | 2022-03-08 | 佛山市国星半导体技术有限公司 | Arrangement method of LED crystal grains and finished square piece |
| CN114918157A (en) * | 2022-05-25 | 2022-08-19 | 佑光智能半导体科技(深圳)有限公司 | Blue film sorting machine and sorting method |
-
2013
- 2013-06-08 CN CN2013203389686U patent/CN203304199U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111326612A (en) * | 2018-12-17 | 2020-06-23 | 台湾爱司帝科技股份有限公司 | Layout method for mixing and assembling LED chips of different grades and display device |
| CN113441413A (en) * | 2021-06-04 | 2021-09-28 | 盐城东紫光电科技有限公司 | Have LED equipment of surveying and picking up function concurrently |
| CN114146955A (en) * | 2021-10-15 | 2022-03-08 | 佛山市国星半导体技术有限公司 | Arrangement method of LED crystal grains and finished square piece |
| CN114146955B (en) * | 2021-10-15 | 2023-11-14 | 佛山市国星半导体技术有限公司 | Arrangement method of LED crystal grains and finished square sheet |
| CN114918157A (en) * | 2022-05-25 | 2022-08-19 | 佑光智能半导体科技(深圳)有限公司 | Blue film sorting machine and sorting method |
| CN114918157B (en) * | 2022-05-25 | 2023-12-01 | 佑光智能半导体科技(深圳)有限公司 | Blue film separator and separation method |
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Granted publication date: 20131127 |
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