Photovoltaic Industry Material Solutions
Industry Background
The photovoltaic industry, as an important component of global energy transition and sustainable development, focuses on the development and application of solar energy technology. Photovoltaic technology is advancing rapidly, and during the production process of photovoltaic modules, higher requirements are placed on the environmental protection, efficiency, reliability, and compatibility of electronic soldering materials and auxiliary soldering materials to ensure efficient and stable connections of the modules.
Photovoltaic modules
Inverters
Grid-connected boxes
Junction boxes
WTO Introduction
WTO has been deeply engaged in the microelectronic soldering materials industry for more than twenty years and has accumulated rich R&D and practical experience in the photovoltaic field. The electronic special new materials such as solder paste, flux, cleaning agents, conformal coatings, and adhesives that we have developed, as well as the series of solutions we have proposed, will play a crucial role in ensuring the performance and reliability of photovoltaic modules.
High Conversion Rate, High Reliability
The equipment composition of photovoltaic power stations mainly includes photovoltaic modules (solar panels), inverters, mounting brackets, and grid-connection boxes. Photovoltaic modules are responsible for converting solar energy into electrical energy, while inverters convert direct current into alternating current for use. Mounting brackets are used to support and fix photovoltaic modules, ensuring they can stably receive sunlight. Grid-connection boxes connect the electrical energy generated by the photovoltaic system to the power grid, enabling the transmission and distribution of electrical energy. These devices together constitute the photovoltaic power station, providing important support for the utilization of renewable energy. WTO provides professional cleaning agents, flux, solder paste, solder preforms, adhesives, thermal management and sealing material solutions for photovoltaic modules, photovoltaic inverters, junction boxes, and grid-connection boxes.
Photovoltaic Modules
Inverters
Grid-connection Boxes
Junction Boxes
Material Solutions
Flux
Products: Non-crystallizing photovoltaic flux WTO-PV107, high activity no-clean photovoltaic flux WTO-PV108, no-clean photovoltaic flux WTO-PV112B, water-based flux WTO-PV109, flux specially applied to solar photovoltaic products, which can be used with dipping and spraying processes.
No-clean lead-free solder flux is composed of high-quality modified rosin resin, organic activators, various additives, and solvents. This flux has excellent solderability, full and bright solder joints, good tin penetration, and uniform tin application.
Excellent Solderability
No-clean
Lead-free
Cleaning Agents
Products: GW209 series.
Professional Grade
Effective Cleaning
Solder Paste
Products: BC process solder paste GW9098-GF, junction box solder paste GW9098, semiconductor chip packaging solder paste WTO-LF9400-GF / WTO-LF9500-GY / SAC305YM116WS, high reliability solder paste SAC305YM333/ WTO-LF9400-GF/ WTO-LF9600-HR.
WTO BC solder paste is a halogen-free solder paste made from high-reliability solder paste and high-quality low-oxygen powder, suitable for photovoltaic cell soldering, and is an ideal no-clean solder paste compatible with lead soldering processes. The product has stable high-speed printing performance with an application yield rate of 99.5%, low unit consumption, and its reliability and process compatibility have been widely recognized by leading enterprises in the industry.
Halogen-free
99.5% Yield Rate
High Reliability
Low Consumption
Preformed Solder Preforms
Customization: Various alloy compositions, shapes, sizes, and flux coating amounts of preformed solder preforms can be developed according to customer requirements. Products feature good solderability, no-clean, low void rate, and good soldering consistency.
Custom Alloys
Low Void Rate
Consistent Quality
Conformal Coatings
Products: WTO-C930, WTO-931, WTO-9201.
Single-component, low viscosity, UV light and moisture dual-cure electronic conformal coating that can be surface-dry within seconds under 365nm ultraviolet lamp irradiation. The product's excellent anti-yellowing, moisture, and chemical resistance make it suitable for coating various circuit boards/solder joint or lead protection, as well as spraying, dispensing, and hand brushing processes.
UV Cure
Anti-yellowing
Chemical Resistant
Adhesives
Products: Battery protection adhesive UV5145/UV5168, busbar fixing adhesive UV5127.
Photovoltaic adhesives, single-component, solvent-free, acrylate-based ultraviolet visible light curing adhesives. According to application, they are divided into busbar fixing adhesive and battery protection adhesive, designed for fixing photovoltaic cell busbars and protecting BC cells respectively. Products have high light transmission, high temperature resistance, excellent adhesion to glass and metal, and can cure rapidly within seconds.
UV Curin
Solvent-fre
High Transmissio
Rapid Cure
Thermal Management Materials
Thermal Pads
Thermal Gels
Thermal Insulation Sheets
Thermal Structural Adhesives