JAPAN USA PRECISION TOOLSFounded in 1931, MITSUYA CO. LTD. is the worldwide leader in precious metals plating. With a team of over 300 dedicated employees and a network of 4 plants across Japan, MItsuya specializes in various advanced plating processes particularly suited for automotive, medical, aerospace and semiconductor industries worldwide including gold, silver, rhodium, indium, palladium and more.

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Rhodium Plating

Now compatible with BARREL PLATING

Originally limited to Rack and Mesh. Plating, Mitsuya's Rhodium Plating faced. constraints in production quantity and product scope. Now, with compatibility for Barrel Plating, this advancement enables plating for a broader range of shapes while retaining consistent coating performance.

KEY FEATURES

• Processing Method:
Rack Plating
Mesh Plating
Barrel Plating
• Purity 97-99.9%
• Hardness 750-1000 HV
• Maximum Thickness 1μm
• Materials Processed:
Copper (and its alloys)
Brass
Beryllium copper
Et cetera
• Product Dimensions:
0.3x6.5 mm
(pin shape)
• Processing Volume:
Consultation required

APPLICATION

• Sensors
• Semiconductor ICs
• Wafers
• Optical Electronics

Certifications

Eco-wise, Quality Rise.

*Equivalent to ISO14001
**Equivalent to AS9100 and EN9100
KES: Kyoto Environmental Management System

Indium Plating

Discover the innovative indium plating technology designed
to meet the demanding needs of modern industries.

Key Features...

LOW MELTING POINT
Ideal for low-temperature bondingmaterials and metal seals
UNIFORM COATINGProvides consistent surface properties on metal surfaceCHEMICAL STABILITY
Excellent resistance to organic acids in lubrication oilTARNISH RESISTANCE
Valuable for anti-tarnish coatings on silver platingWEAR RESISTANCE & LUBRICITY Suitable for sliding bearings

LEARN HOW MITSUYA'S INDIUM PLATING CAN BENEFIT YOUR BUSINESS.

Gold-Tin Alloy Plating

Lead-free solder suitable for
high-temperature, high-strength, and high-reliability
connections.

Why use AuSn Alloys

• Eco-friendly Soldering Solutions
Solderable without Flux
Lead-free (ROHS Compliant)• Corrosion and Oxidation Resistance• High Strength Connections
High Bond Strength
Excellent Wettability
Excellent Tensile Strength• Thermal Performance
Reliability at High Temperatures
High Melting Point (280°C)
High Thermal Conductivity (High Heat Dissipation)
Low Coefficient of Thermal Expansion
Thermal Fatigue Resistance

AuSn Alloy Plating

• Precision Film Thickness
Thinner Plating Film (VS conventional solder/methods) Coating Uniformity (Tolerances +lum)
High Dimensional Accuracy (Fine Pattern Deposition)• Alloy Composition
Uniform and Stable Composition
Eutectic and Non-Eutectic Compositions• High-Output Productivity
High Productivity (Rack Plating, Barrel Plating, Robot Line)
Applicable Plating for Various Fields

APPLICATION

• Sensors
• Semiconductor ICs
• Wafers
• Optical Electronics

Direct Plating on

Direct Plating on

• Gold Plating • Silver Plating • Tin Plating

Mitsuya's innovative direct plating By reducing processing steps and
eliminates the need for a traditional nickel underlayer, crucial in medical applications to prevent nickel allergies. This advanced technique is available for gold, silver, and tin plating, with gold offering both rack and hoop methods.

By reducing processing steps and improving adhesion, Mitsuya's direct plating technologies offer efficient, high- performance solutions for various industries, enhancing the performance and reliability of stainless steel components.

Gold Plating on SUS

Direct gold plating enhances stainless steel with superior conductivity, corrosion resistance, antimicrobial properties, wear resistance, and thermal conductivity. This versatile technique finds critical applications in diverse sectors like medical devices, electronics, aerospace, and
telecommunications.

Silver Plating on SUS

Direct silver plating enhances stainless steel, improving conductivity, corrosion resistance, wear resistance, solderability, and aesthetics. This versatile technique finds critical applications in electronics, medical devices, aerospace, and luxury goods.

Tin Plating on SUS

Direct tin plating enhances stainless steel, improving corrosion resistance, solderability, and conductivity, while offering wear resistance and a protective coating. This versatile technique finds critical applications in electronics, automotive, and other industries.