Solar Cell Aluminum Paste Manufacturers For Back Surface Field 1.24g Wet Deposit

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Product Overview

Description

Product Description

Solar Cell Aluminum Paste Manufacturers For Back Surface Field 1.24g Wet Deposit

As the industry pushed towards thinner wafers to reduce material costs, too much bowing will cause cell cracking and breakages. A cracked solar cell typically exhibits lower electrical efficiency and will results in more B-grade cells being produced in the cell manufacturing line. Broken cells create line stoppages, are resource intensive, and can noticeably affect cell production throughout. Our paste has excellent bowing performance on 200μm, 180μm and even 150μm wafer thicknesses.
LEED-INK aluminum paste is designed to deliver low bowing and high efficiency, better adhesion strength and a wide process window. We offer a variety of standard formulations or tailor-made Al paste solutions for optimal concordance with your needs.

Advantages

Lower consumption
Low bow
High adhesion
Good morphology
High hot water resistance

Technical Spec
Test
Properties
Solid Content (%)
70-80
Viscosity (Pa.S)
(NDJ-8S, #4, 25±0.5℃)
40-120
Fineness(μm)
≤22
Recommended Drying Conditions
Chain fast burning furnace: 280℃-350℃/25-50sec;
Rotating drying furnace: 180℃-250℃/8-15min
Practical Peak Temperature
770-830℃
Wet Deposit (g/pcs) (156*156)
1.24-1.4
Resistivity (mΩ/sq) (Fired Thickness)
≤30
Bow
(156 mono/polycrystal silicon,180μm)
Monocrystal silicon: ≤2.0mm;
Polysilicon:≤1.8mm
Adhesion (N) (Single side EVA tape)
>20
Photoelectrical Conversion Efficiency(%)
Monocrystal silicon: ≥19.50;
Polysilicon:≥18.50
Shelf Life
Six Months from Date of Shipment
Production & QC

Production Flowchart

Normally the typical steps for the electronic paste manufacturing is as below.

1) Raw materials inspection(mainly Ag and Al metal powder); 2) Materials adjust mixed and dispersion; 3) Rolled pulp; 4) Vacuumize; 5) Function Test(including Viscosity, fineness, conductivity, adhesion, solderability, etc.); 6) Package.

LEED-INK Workshop

LEED-INK has been devoted us to development and manufacturing of electronic paste for more than 15 years.

We have more than 1000 square meters constant temperature and humidity clean production workshop with grade 100,000 degrees, and professional electrical testing laboratory. We have strict production environment monitoring system.

With more than 30 skilled workers, including 10 workers skilled in printing equipment and processing operation, which enables to meet the customized requirement from customers.

Our current electronic paste product capacity is 300 tons/month, and estimated capacity in this year is 350 tons/month.

Quality Control

LEED-INK won ISO9001 and ISO14001quality and environment system certification, and all our products are tested with 3 inspection steps before delivery including self inspection, mutual inspection and special inspection. We have a sound production management, process management and quality assurance capabilities.
We have advanced test equipments such as paste printing machines, infrared drying furnace、DESPATCH firing furnace, and solar cell monomer tester, laser etching machine, laser particle size tester, tensile tester, etc.

Every batch of paste will be test before delivery by simulating customer’s application, to form the same quality test standard with customers.

Packing & Delivery

Below are our standard pacakge. Customized pacakge is available if special needed.

For the delivery, we normally choose DHL as long term partner due to the fastest delivery and smooth custom clearance.

And if you have better delivery way, it is also available. Please advise us.

Why Choose Us

Hunan LEED Electronic Ink Co., Ltd.(Hereinafter referred to as ”LEED-INK”) was established in 2002,  and we have over 15 years experience of R&D, production and sales of electronic paste.

We formed a core management team which consists of senior personnel from company management, products R&D, production, financial decision-making and marketting development. All the team members have bachelor's degree or above.

R&D Team

Telented R&D Team takes over 20% of company's employees.

We cooperation with colleges and universities while keep independent research and development, and have undertaken the national "863" project, national small and medium-sized enterprise innovation fund project and the key technology project of hunan province, formed series of electronic paste products with a complete independent intellectual property rights.

EXhibitions and technical exchange

In order to better understand the local market specific needs and follow up the industrial latest technical updates, we insist on participating in the exhibitions, domestic and international technical exchanges. If you are interested in our products and project, welcome to visit our company!

 "Lively, Efficient, Excellent, Dedicated" is the spirit of LEED-INK.

And we sincerely hope to offer you the the most satisfactory products and services with all LEED-INKers' heart!

FAQ

Q1. Why choose LEED-INK?

We are concentrating on Electronic Ink manufacturing in China with over 15 years experience.

And with our own R&D team and manufacture workshop, we targets a variety of different applications of

electronic paste and dedicated to the clients to provide effective technical solution.


Q2. Could we provide customized products?

We have our own R&D team and technicians, so that we could provide personalized products

and service according to different customers’ requirements.


Q3. What information needed before received an accurate quotation?

1) What is the substrate material you use?

2) Is it for screen printing? What is the screen material and mesh size?

3) Drying and Firing process?

4) Any specific requirement?

5) If you already test some method and models, welcome to let us have your test result and the defect,

    the tested brand and models. We can improve the method, and suggest you the most suitable product

    based on it.


Q4. How can we guarantee the qualified products?

We have passes the ISO9001 quality management system Certificate.

We strictly carry out according to the quality system in every aspect of the production process.


Q5. Are LEED-INK products environmental friendly?

We have passed ISO14001 Environmental management system certificate of conformity.

All our products are environmental friendly, and non-toxic element up to European RoHS environmental

regulation (2002/95/EC).


Q6. What’s your MOQ?

Mostly our MOQ is 1kg, while sometimes we accept less quantity like 200g on the condition that

a sample charge is 100% paid.


Q7. How about the delivery time?

Normally, for sample order, our delivery is within 5 days.

For mass production batch, our delivery is within 7 days. But that depends on the real condition

when we get your order.


Q8. Can I get a sample?

Yes, sample is available.

If noble metal such as Ag, Pd included, and the material cost is already high, we do not offer free samples.


Q9. What payment terms is acceptable to you?

T/T, Western Union, Paypal, and L/C. And you can pay directly by Alibaba trade assurance service order.


Q10. Do you accept VISA business credit card ?

Sorry we don’t accept VISA credit card,we’d like to accept T/T, Western Union or Paypal.

And you can pay directly by Alibaba trade assurance service order.

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