CN208753284U - A kind of novel pipe PECD graphite boat stuck point - Google Patents
A kind of novel pipe PECD graphite boat stuck point Download PDFInfo
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- CN208753284U CN208753284U CN201821820424.2U CN201821820424U CN208753284U CN 208753284 U CN208753284 U CN 208753284U CN 201821820424 U CN201821820424 U CN 201821820424U CN 208753284 U CN208753284 U CN 208753284U
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- stuck point
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- stuck
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Abstract
The utility model discloses a kind of novel pipe PECD graphite boat stuck points, including stuck point pedestal, stuck point axis and stuck point cap, stuck point pedestal two sides are symmetrically fixed with stuck point axis, the stuck point axis is fixedly connected with stuck point cap far from stuck point pedestal one end, stuck point slot is provided between the stuck point pedestal and stuck point axis, the stuck point slot is opened on stuck point axis；The stuck point cap is set as triangle, and the stuck point slot opens up to be O-shaped, and stuck point slot is opened in three apexes of triangle respectively.The O-shaped stuck point slot of the utility model is compared with U-shaped card point slot, silicon wafer can be bonded even closer with graphite boat piece, greatly reduce the gap between silicon wafer and stuck point pedestal, to reduce special air-flow around being plated to silicon chip back side, positive film edge stuck point can be reduced thus to print around plating, improved positive film film color, improved the uniformity of color in the piece of positive film, requirement of the further satisfaction market to high standard exterior membrane color, is worthy to be popularized.
Description
Technical field
The utility model relates to the manufacturing technology field of Monocrystalline silicon cell piece surface antireflection film, specially a kind of New pipe
Formula PECD graphite boat stuck point.
Background technique
In photovoltaic solar industry, the manufacture of monocrystalline solar cells will pass through making herbs into wool, diffusion, and SE is etched, annealed, plating
Film (back passivation, notacoria, positive film), laser, nine procedures of silk-screen printing and sintering.Wherein filming process, the back side deposit one first
Then the aluminium oxide for determining thickness plates silicon nitride film on silicon wafer, purpose is enhancing silicon wafer back surface passivation effect, improves battery
Minority carrier life time and enhance the reflectivity at the back side, to improve UOC/ISC, to promote photoelectric conversion efficiency.
At present in the antireflective coating of Monocrystalline silicon cell piece back surface production, general using with good antireflective and surface
The silicon nitride film of passivation generallys use PECVD (plasma-enhanced chemical gas in manufacture of solar cells technique
Mutually deposit) mode carry out plating silicon nitride film.Tubular type PECVD is to silicon chip film-coated, and silicon wafer is by manually or manipulator form is inserted
Enter in graphite boat, then graphite boat is put in plated film in boiler tube.But existing PECVD back plated film is because of the silicon wafer front surface caused by the plating
There is color difference problem, color difference problem not only influences cell piece qualification rate, does over again and cause a large amount of material wastes, can also reduce cell piece
Efficiency.
The main two kinds of stuck point slots of existing market: V-type with it is U-shaped, the shape of V-type stuck point slot is U-shaped as shown in Figure of description 1
The shape of stuck point slot is as shown in Figure of description 2, and the stuck point cap structure of existing V-type stuck point slot and U-shaped card point slot is as said
Shown in bright book attached drawing 3, in which: the slot inside dimension of V-type stuck point slot is smaller, and silicon wafer easily causes scuffing during inserted sheet, separately because of V-type
Stuck point slot space is tiny easily to be caused to insert because of deposited silicon nitride and takes the chipping of piece process or unfilled corner, and product qualification rate is influenced；U-shaped card point
The groove body position of slot and stuck point cap gradient increase, and relatively reduce scuffing, chipping problem；But groove body is Parallel Design, silicon
Piece placement landing slot is not low high with the boat leaf goodness of fit, then air-flow can be around positive film be plated to, and corresponding positive film edge stuck point will form around plating
Print, influences positive film outward appearance.
Utility model content
The purpose of this utility model is to provide a kind of novel pipe PECD graphite boat stuck points, to solve above-mentioned background technique
The problem of middle proposition.
To achieve the above object, the utility model provides the following technical solutions:
A kind of novel pipe PECD graphite boat stuck point, including stuck point pedestal, stuck point axis and stuck point cap, the stuck point pedestal
Two sides are symmetrically fixed with stuck point axis, and the stuck point axis is fixedly connected with stuck point cap, the stuck point pedestal far from stuck point pedestal one end
Stuck point slot is provided between stuck point axis, the stuck point slot is opened on stuck point axis；
The stuck point cap is set as triangle, and the stuck point slot opens up to be O-shaped, and stuck point slot is opened in triangle respectively
Three apexes.
Preferably, the thickness of the stuck point cap is arranged between 0.55-1mm.
Preferably, the width of the stuck point slot is arranged between 0.35-0.5mm.
Preferably, the stuck point pedestal, stuck point axis and stuck point cap are an integral molding structure.
Preferably, the central axis of the stuck point pedestal and stuck point cap is on same reference line.
Compared with prior art, the utility model has the beneficial effects that
1, being provided with for O-shaped stuck point slot is conducive to slow down silicon wafer from the survey stroke of stuck point cap to stuck point trench bottom in the utility model
Impact force reduces chipping, unfilled corner and fragment rate；
2, the radial width that the utility model increases O-shaped stuck point slot can reduce because insert it is not in place caused by scratch；
3, the increase of the utility model stuck point cap thickness can effectively protect damage caused by the abrasion and unexpected touching of stuck point point
It is bad, increase stuck point service life and reduces producing line repair rate；
4, the O-shaped stuck point slot of the utility model is compared with U-shaped card point slot, silicon wafer can be bonded with graphite boat piece it is even closer,
The gap greatly reduced between silicon wafer and stuck point pedestal can reduce positive film to reduce special air-flow around silicon chip back side is plated to thus
Edge stuck point is printed around plating, is improved positive film film color, is improved the uniformity of color in the piece of positive film, further satisfaction market is to high standard
The requirement of exterior membrane color, is worthy to be popularized.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of V-type stuck point slot in the prior art；
Fig. 2 is the structural schematic diagram of U-shaped card point slot in the prior art；
Fig. 3 is the structural schematic diagram of circular stuck point cap in the prior art；
Fig. 4 is the structural schematic diagram of the O-shaped stuck point slot of the utility model；
Fig. 5 is the stuck point cap structure schematic diagram of the utility model.
In figure: 1 stuck point pedestal, 2 stuck point axis, 3 stuck point caps, 4 stuck point slots.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-5 is please referred to, the utility model provides a kind of technical solution:
A kind of novel pipe PECD graphite boat stuck point, including stuck point pedestal 1, stuck point axis 2 and stuck point cap 3, stuck point pedestal 1
Two sides are symmetrically fixed with stuck point axis 2, and stuck point axis 2 is fixedly connected with stuck point cap 3, stuck point pedestal 1 and card far from 1 one end of stuck point pedestal
It is provided with stuck point slot 4 between point axis 2, stuck point slot 4 is opened on stuck point axis 2.
As shown in Figure of description 5, stuck point cap 3 is set as triangle, and the thickness of stuck point cap 3 is set as 0.75mm, stuck point
Slot 4 opens up to be O-shaped, and the width of stuck point slot 4 is set as 0.45mm, i.e., the radius of O-shaped stuck point slot 4 is 0.45mm, and stuck point slot 4 divides
It is not opened in three apexes of triangle, allows a stuck point by the stuck point slot 4 by two vertex to two panels silicon
Piece carries out stuck point and fixes, and stuck point pedestal 1, stuck point axis 2 and stuck point cap 3 are an integral molding structure, so that overall structure is more steady
Fixed, the central axis of stuck point pedestal 1 and stuck point cap 3 is on same reference line, so that position error will not occur when use.
As shown in Figure of description 4, silicon wafer can be fallen in O-shaped stuck point slot 4 after placing vertically along circular arc, and be fitted in
The pedestal of stuck point slot 4, this gap reduced between silicon wafer and stuck point pedestal 1 are to reduce special air-flow around silicon chip back side is plated to
This can reduce positive film edge stuck point and print around plating, improve positive film film color, improve the uniformity of color in the piece of positive film, this improves around plating
It is highly effective
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of novel pipe PECD graphite boat stuck point, including stuck point pedestal (1), stuck point axis (2) and stuck point cap (3), described
Stuck point pedestal (1) two sides are symmetrically fixed with stuck point axis (2), and the stuck point axis (2) is fixedly connected with far from stuck point pedestal (1) one end
Stuck point cap (3) is provided with stuck point slot (4) between the stuck point pedestal (1) and stuck point axis (2), and the stuck point slot (4) is opened in card
On point axis (2), it is characterised in that:
The stuck point cap (3) is set as triangle, and the stuck point slot (4) opens up to be O-shaped, and stuck point slot (4) is opened in three respectively
Three angular apexes.
2. a kind of novel pipe PECD graphite boat stuck point according to claim 1, it is characterised in that: the stuck point cap (3)
Thickness be arranged between 0.55-1mm.
3. a kind of novel pipe PECD graphite boat stuck point according to claim 1, it is characterised in that: the stuck point slot (4)
Width be arranged between 0.35-0.5mm.
4. a kind of novel pipe PECD graphite boat stuck point according to claim 1, it is characterised in that: the stuck point pedestal
(1), stuck point axis (2) and stuck point cap (3) are an integral molding structure.
5. a kind of novel pipe PECD graphite boat stuck point according to claim 1, it is characterised in that: the stuck point pedestal
(1) it is on same reference line with the central axis of stuck point cap (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821820424.2U CN208753284U (en) | 2018-11-06 | 2018-11-06 | A kind of novel pipe PECD graphite boat stuck point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821820424.2U CN208753284U (en) | 2018-11-06 | 2018-11-06 | A kind of novel pipe PECD graphite boat stuck point |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208753284U true CN208753284U (en) | 2019-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821820424.2U Active CN208753284U (en) | 2018-11-06 | 2018-11-06 | A kind of novel pipe PECD graphite boat stuck point |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109244020A (en) * | 2018-11-06 | 2019-01-18 | 通威太阳能（安徽）有限公司 | A kind of novel pipe PECD graphite boat stuck point |
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2018
- 2018-11-06 CN CN201821820424.2U patent/CN208753284U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109244020A (en) * | 2018-11-06 | 2019-01-18 | 通威太阳能（安徽）有限公司 | A kind of novel pipe PECD graphite boat stuck point |
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