Polycrystalline Solar Silicon Wafer, Solar Wafers, 125*125mm

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Loading Port:
Shanghai Port
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TT or LC
Min Order Qty:
100 Pieces PCS
Supply Capability:
700MW/Per Year PCS/month

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Product Description:

Specifications of Poly Solar Wafers

 

Product name

Poly Wafer
Conductive type P Type
Square size wafer (mm)

125×125±0.5 
219.20±0.5 
Corner (mm)

 

1±0.5、45°±10º 
200±20 
Total thickness(um)  ≤40 
Resistivity ranges(Ωcm)  1-3
Doping elements  boron
Carbon content(atoms/cc)  ≤8*1017
Oxygen content(atoms/cc)  ≤1*1018
Lifetime(μs)  ≥2 
Surface quality    No crack, gap, missing Angle, perforated, window, microcrystalline
Warping degrees(μm)  ≤50 
Neighbouring vertical degree 90±0.5° 
Side damage(mm)   ≤0.5mm(length)×0.3mm(width),(not more than 2 per wafer)
Line mark(μm)  ≤15

 

Advantages of Poly Solar Wafers

 

1. High efficiency and High power.

2. Long-term electrical stability.

3. Lowest price and Fastest delivery.

4. Good quality and good service.

5. Bulk supply

6. Good Warranty

7. Big Sale

8. More than 25 years on the lifetime.

 

Usage and Applications of Poly Solar Wafer

Poly Solar Wafers mainly used to make Poly Solar Cells. Our wafers are your best choice of raw material, which can greatly improve the performance of the Solar Cells and Solar Modules.

 

Packaging & Delivery of Poly Solar Wafer

Carton Box Package and Deliver by air. It should be noticed that it should be avoid of water, sunshine and moist.

 

Factory of Solar Wafers

 

 Solar Wafer

 

Package Picture of Solar Wafer

 Solar Wafers

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Q:Why the resistivity of silicon wafer is high and low
If it is caused by changes in temperature resistance, it is normal;
Q:Polished silicon wafers can be most SEM substrates
In other words, only nano materials will consider the use of polished silicon wafer sample carrier. Micron submicron level, waste, direct double-sided conductive adhesive tape can be.
Q:How many times is the resistance of the same size silicon
Silicon is an important semiconductor material, chemical element symbol Si, the silicon used in the electronic industry should have high purity and excellent electrical and mechanical properties
Q:What is the cutting fluid for solar wafer cutting?
Because in the China multi wire cutting machine was first used in semiconductor cutting, so that only the Swiss MB and HCT, the Swiss system thinking line cutting machine with special emphasis on power and environmental protection, so that this kind of machine in the cutting process of mortar viscosity requirement is relatively high, the most direct embodiment is to use the cutting fluid is oily, reflected in the raw material cutting fluid is used to peg, otherwise, the power will be the formation of excess waste machine. NTC is the rise in the solar industry on the occasion, we seize the opportunity, to imitate the Swiss line cutting machine design and production, but the Swiss precision machine modified to virtually out of order, the rapid development of the pursuit of efficiency of solar wafer cutting industry, especially to the rise of China solar wafer cutting industry thus, China quickly occupied the market leader, the share reached 65%. However, the company has done a little better, although the power system and the power of the machine to reduce a lot, you can use the machine in the use of cutting fluid on the Swiss machine standards. Oily cutting fluid cutting efficiency and surface cut out of the film is generally better than the aqueous solution of cutting fluid, but the performance of Japanese light wire cutting machine, which he used oily fluid will cause a burden on his power, so Japanese developed this kind of water-based cutting fluid. Regardless of the cost or the use of the Japanese machine are more consistent, and easy to recycle. This NTC machine oil cutting fluid and water-based cutting fluid can be used.
Q:How to extract silicon from silicon wafers
Chamfer: the annealed silicon wafer is trimmed into an arc shape, which can prevent the wafer edge from cracking and lattice defect, and increase the flatness of the epitaxial layer and the photoresist layer. In this process, the silica fume is produced by water leaching to produce waste water and silicon slag. [1]
Q:What to do with silicon. What is the relationship between the semiconductor and the PCB board
This problem may be more profound understanding of microelectronics.I am learning communication, simply say my understandingPure silicon wafer conductivity is relatively weak. But the incorporation of trivalent impurities or pentavalent after a carrier (free electrons or holes) and semiconductors. The electrical conductivity of semiconductors and the type of doping, the concentration and process. Knowledge of semiconductor doping analog electronic circuits on the textbook.
Q:The process for steel wire cutting silicon factory, we use HCTB5 wire, you can do?
Electroplated diamond wireWith high tensile strength, the strength of electroplated diamond wire is more than 110% of the original strand strength. The technical problem of electroplating line embrittlement caused by plating induced tensile stress is solved successfully.
Q:Why integrated circuit electronic devices should be integrated on silicon
Integrated circuit (integrated circuit) is a kind of micro electronic device or component. With certain techniques, the transistor, required a circuit of resistance, capacitance and inductance components and interconnect wiring together, produced in a small or a few bits of the semiconductor wafer or substrate, and then encapsulated in a tube shell, a micro structure required for the circuit function; all of them element in the structure has formed a whole, so that the electronic components to miniaturization, low power consumption, high reliability and intelligent a huge step forward. It is represented by the letter "IC" in the circuit. The inventor of the integrated circuit is Jack Kilby (based on Ge) and the (silicon based (Si) integrated circuit). Most of the semiconductor industry today is based on silicon integrated circuit.
Q:Why do you choose a silicon chip as a chip?
1M=1024KB1KB=1024B1B=8b (note, lowercase)The computer is used 1024 of the hexadecimal, real life is commonly used in the, which is why the 512MB card, plug in the computer but only about 488MB
Q:Monocrystalline silicon processing technology
Wafer thickness is also a factor in productivity, as it relates to the number of wafers produced by each silicon block. The ultrathin wafer presents additional challenges to the wire technology, because the production process is much more difficult to. In addition to the mechanical brittleness of silicon wafers, if the wire sawing process no precise control, slight crack and bending will have negative effects on product yield. The system must be of ultra-thin silicon wire technology, linear cutting line speed and pressure, and precise control of cutting coolant.Regardless of the thickness of the silicon wafer, crystal silicon solar cell manufacturers have made great demands on the quality of the silicon wafer. The wafer cannot have surface damage (minor cracks, wire mark), morphology defects (bending, convex, uneven thickness) to minimize additional back-end processing such as polishing and other requirements to a minimum. Current situationIn order to meet the market for lower cost and higher productivity, a new generation of wire must improve the cutting speed, the use of silicon longer so as to improve the cutting load. Thinner cutting lines and thinner silicon chips increase productivity, while advanced process control can manage cutting line tension to keep the cutting line firm.
Our company is a world class resources and green energy developer, operator and supplier with its engagement in green energy development, integration and operation. We strives to offer highly efficient, eco-friendly, economical and reliable energy solutions through an integrated and diversified energy industrial chain. In adherence to the philosophy of bringing green power to life, the Group stays committed to continuously providing high-quality energy and services for a better living environment. Under approaches of people-oriented, excellence-foremost, value-creation and harmony-pursuant, our Group is determined to become a respected world-class green energy conglomerate.

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