三協 List of Products and Services

The "Electrode-less Discharge Lamp" 【MEXEL】 is a next-generation lighting solution suitable as an alternative to mercury lamps. By significantly reducing high-frequency noise, which can cause radio interference, through circuit improvements, we have successfully controlled noise without lowering luminous efficiency. This product offers safety and security. 【Main Features】 ■ Brightness comparable to mercury lamps ■ Energy-saving effect of about 1/3 to 1/2 compared to mercury lamps ■ Excellent color rendering with a color reproduction close to natural light (sunlight) ■ Long lifespan (approximately 10 times that of fluorescent lamps and about 5 times that of mercury lamps) ■ No filament electrodes, allowing for semi-permanent lighting (the brightness gradually decreases only due to the aging of the applied phosphor, but unlike other lamps, it does not burn out) *For more details, please download the PDF document or feel free to contact us.

• Other lighting equipment

The UV ozone method is a surface treatment technique that modifies and precisely cleans the surfaces of plastics and metals through UV light irradiation, while not causing corrosion on surfaces larger than the micrometer scale. In signal frequency acceleration and fine circuit formation, it is necessary to apply some treatment to the substrate surface to reduce the roughness (smoothness) of the substrate's unevenness and enhance adhesion. The UV ozone method can improve adhesion while maintaining the smoothness of the substrate surface. **Effects of the UV Ozone Method** - Increases adhesion without roughening the substrate - Application for electroless plating pretreatment → With UV pretreatment: High adhesion and capable of fine circuit formation For more details, please contact us or download the catalog.

• Other surface treatment equipment

We are currently offering a free booklet titled "Basic Knowledge of Surface Treatment II," which condenses the know-how of "plating processing" that Sankyo has cultivated over more than 70 years! Following the previous edition, which received positive feedback for being "very informative about plating," this second volume has been published. It provides a deeper and clearer explanation. *Excerpt of the contents: <Basic Knowledge of Surface Treatment> ■ Main causes of defects in surface treatment and countermeasures ■ The impact of impurities in Ni plating solutions and purification methods ■ Limit concentrations of impurities in sulfamic acid Ni baths, etc. <Experiment: To Prevent Stress Generation> ■ What is stress? ■ Stress/hardness measurement experiments ■ Discussion based on experimental results <Q&A>

• Surface treatment contract service

Seventy years since starting electroplating. A beginner's guide that clearly explains "knowledge you should know," condensed with the know-how of a long-established company. You can learn about super basic topics such as "What is electroplating?" and "The history of electroplating," as well as its applications and characteristics. You can download the booklet or contact us for more information.

• Surface treatment contract service

At Sankyo Co., Ltd., we focus on three plating services: electrolytic hard gold plating, electrolytic soft gold plating, and electrolytic tin-copper plating. These services are primarily used for flexible printed circuit boards and printed circuit boards. 【Types and Features of Plating】 ● Electrolytic Hard Gold Plating - Excellent solderability - Superior corrosion resistance - High contact performance ● Electrolytic Soft Gold Plating - Excellent bonding and solderability High purity (99.99% or higher) and low hardness (90 Hv or lower) - Excellent uniform electrodeposition - Superior corrosion resistance ● Electrolytic Tin-Copper Plating - Environmentally friendly as it does not contain lead, fluorides, etc. (low pollution) - Excellent solderability due to stable coating characteristics (tin-copper ratio of 99:1) - Superior heat resistance and discoloration resistance 【Free evaluation samples available for first-time customers, up to 10 sheets!】 ◎ By downloading the catalog, you can view the company profile of Sankyo Co., Ltd. ◎ Please download the catalog to confirm the details of the technical analysis.

• Processing Contract

Hard gold plating excels in electrical conductivity, wear resistance, and discoloration resistance. Furthermore, it achieves a hardness approximately 2 to 5 times that of pure gold plating, making it widely used in industrial components. Depending on the application, a nickel undercoating can be selected. It maintains stable quality even for ultra-precision parts due to its excellent solderability. For detailed product specifications, please download the catalog or contact us.

• alloy

The 'Electroless Ni-P/Replacement Au plating process with excellent solder wettability' is a plating process that uses 4Ag, which has similar characteristics to Au, making it an alternative to the electroless Ni-P/Replacement Au plating process. The solder wettability is better immediately after plating compared to the electroless Ni-P/Replacement Au plating. For more details, please contact us or download the catalog.

• Processing Contract

The 'Electrolytic Ni/Electrolytic Au Plating Alternative Plating Process' forms a dense and corrosion-resistant Pd film between the electrolytic Ni plating and the electrolytic Au plating, resulting in excellent corrosion resistance. The solder wettability immediately after plating is almost equivalent to that of electrolytic Ni/electrolytic Au plating. For more details, please contact us or download the catalog.

• Processing Contract

The electroless Ni-P/replacement Au plating alternative plating process forms a dense and corrosion-resistant Pd film between the electroless Ni-P plating and the replacement Au plating, resulting in excellent corrosion resistance. Although a Pd film is formed as an intermediate layer, the solder wettability immediately after plating is almost equivalent to that of electroless Ni-P/replacement Au plating. For more details, please download the catalog or contact us.

• Processing Contract

The plating with excellent solder wettability and matte appearance is a replacement type Sn plating solution, which results in fewer pinholes and a uniform matte Sn coating simply by immersing copper. It has better solder wettability than electroless Ni-P/replacement Au plating. 【Features】 - As it is a replacement type Sn plating solution, fewer pinholes and a uniform matte Sn coating are deposited just by immersing copper. - Better solder wettability than electroless Ni-P/replacement Au plating. - Ideal for printed circuit boards (plated areas are copper). - Broad support from research and development to prototyping and mass production. For more details, please download the catalog or contact us.

• Processing Contract

The new functional plating with excellent wear resistance and high hardness is a plating film that uniformly disperses and co-deposits silicon carbide (SiC) microparticles within an electroless Ni-P plating film. It can be used continuously for up to three turns depending on the replenishment method. 【Features】 - A plating film that uniformly disperses and co-deposits silicon carbide (SiC) microparticles within an electroless Ni-P plating film - Continuous use for up to three turns depending on the replenishment method - Ideal for sliding components - Wide support from research and development to prototyping and mass production For more details, please download the catalog or contact us.

• Processing Contract

This is an introduction to the surface treatment services for flexible printed circuit boards offered by Sankyo Co., Ltd., a specialist in surface treatment. We support you with reasonable prices! We also accommodate small lots and short delivery times. With 70 years of experience, we provide high-quality products through advanced technology and state-of-the-art equipment, along with specialized expertise. ● For more details, please contact us.

• Surface treatment contract service