Precision Surface Finishing for High-Reliability Electronic Components

In the world of electronics, performance begins at the surface. Whether you’re building avionics, medical devices, data centers, or consumer tech, your components depend on stable conductivity, corrosion resistance, and reliable signal transmission. That’s where The Lindgren Group comes in.

We provide high-performance metal finishing for electronic components—including gold plating, silver plating, tin plating, anodizing, and connector plating—for manufacturers who can’t afford electrical failure, solderability issues, or inconsistent surface quality.

From mission-critical aerospace systems to high-speed data servers and precision sensors, our coatings support the durability, functionality, and reliability that modern electronics demand.

Why Metal Finishing is Essential in Electronics Manufacturing

Electronic components, no matter how advanced, are only as reliable as their surface interfaces. Without proper finishing, even the best-designed circuit can suffer from:

  • Poor electrical conductivity
  • Signal degradation or interference
  • Oxidation or corrosion
  • Poor solderability
  • Contact resistance and connection failure
  • Environmental instability (e.g., humidity, heat, vibration)

That’s why manufacturers in sectors like aerospace, medical devices, telecom, automotive, and semiconductors turn to The Lindgren Group for precision metal finishing solutions built for consistency and scale.

Key Metal Finishing Services for Electronics Manufacturers

Gold Plating (ASTM B488, MIL-G-45204)

Gold plating is the industry gold standard for conductivity, corrosion resistance, and contact stability. Its non-reactive nature and low contact resistance make it essential for:

  • Edge connectors and contacts
  • PCB connectors and pins
  • High-frequency data transfer components
  • RF and microwave devices
  • Avionics and medical sensors

We offer both hard gold (for wear applications) and soft gold (for wire bonding) with full compliance to industry specs. Our selective plating options reduce cost while optimizing performance exactly where it’s needed.

Silver Plating (ASTM B700)

Silver offers the highest electrical and thermal conductivity of any metal, making it ideal for:

  • Power connectors
  • RF/microwave circuits
  • EMI/RFI shielding
  • Circuit breakers and contactors
  • Microwave and antenna components

Though more susceptible to tarnishing than gold, silver is widely used in power-intensive or high-frequency electronics where conductivity is paramount.

Tin Plating (ASTM B545, MIL-T-10727)

Tin plating provides cost-effective protection and solderability in:

  • Consumer electronics
  • Automotive electronics
  • Terminal blocks
  • Battery connectors
  • Wire bonding and circuit boards

We offer both bright and matte tin finishes, including lead-free options, to meet modern compliance standards such as RoHS and REACH.

Connector Plating & Selective Finishing

Connectors are vital in all types of electronics—from laptops to satellites. Our connector plating services include:

  • Gold-on-contact finishes for high-cycle durability
  • Tin or nickel barrier layers for solderability
  • Silver finishes for high-current applications
  • Selective plating using masks or precision tooling
  • Multi-metal finishes for cost optimization

Whether you need micro-scale selective plating or bulk connector coating, our processes ensure conductivity and signal integrity every time.

Common Electronic Components We Plate

We work with electronics manufacturers and OEMs to finish a wide range of parts, including:

  • PCB contacts and edge connectors
  • Board-level terminals and pins
  • Sensor components and housings
  • Bus bars and power rails
  • EMI/RFI shielding structures
  • Circuit board interfaces
  • Battery terminals
  • Wire harness contacts
  • RF/microwave connector assemblies

No matter the volume or complexity, we help ensure each part is electrically stable, corrosion-resistant, and ready for final assembly.

Industries We Serve

Our finishing services support electronics manufacturers in diverse industries:

Aerospace & Defense

  • Radar and comms equipment
  • Mission-critical avionics
  • Military-grade RF systems
  • MIL-SPEC connectors

Medical Devices

  • Surgical tools and sensors
  • Patient monitoring systems
  • Wearable electronics
  • Diagnostic devices

Telecommunications & Data

  • High-speed data transmission
  • Satellite communications
  • Fiber optic connectors
  • EMI shielding

Automotive & EV

  • ADAS systems
  • Battery management systems
  • Charging infrastructure
  • Sensors and actuators

Industrial & Robotics

  • Factory automation systems
  • Motor controllers
  • Machine sensors
  • PCB-level interfaces

Why Choose The Lindgren Group?

Decades of Experience in Electronics Finishing

We’ve served Tier 1 OEMs and innovative startups alike—providing plating services that meet exacting standards and evolving industry specs.

Micron-Level Precision

We maintain strict control over plating thickness, adhesion, masking, and purity, ensuring each part performs as expected.

Full Certification & Quality Control

  • ISO 9001 Certified
  • ASTM, IPC, and MIL-SPEC compliant
  • RoHS, REACH, and lead-free options
  • Full traceability and inspection documentation

Collaborative Engineering Support

Our technical team works with your engineers to optimize finishes for conductivity, reliability, and cost—offering custom solutions, R&D support, and FAI prep.

Scalable Services

Whether you need prototype plating, pilot runs, or high-volume production, we scale with your project and deliver consistent quality every time.

Additional Services for Electronics Customers

We offer more than just plating. Our full-service approach includes:

  • Pre-cleaning and surface prep
  • Masking and selective plating
  • Post-plate inspection and testing
  • Packaging for ESD-sensitive parts
  • Logistics and traceability support
  • Environmental testing and QA documentation

Our team is experienced with ITAR, NADCAP, and customer-specific certifications, ensuring compliance across sectors.

Start a Project with The Lindgren Group

At The Lindgren Group, we help electronics manufacturers connect better, solder cleaner, and last longer. Whether you’re plating a single contact or producing thousands of high-speed connectors, we deliver surface treatments that improve performance, durability, and reliability.