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Photochemical Etching Service

Photochemical Etching Service

Committed to providing you with stress-free, burr-free metal parts—featuring virtually limitless design complexity—through cutting-edge etching technology.

Our etching capabilities

We specialize in providing high-precision, stress-free metal etching solutions. From rapid prototyping to high-volume production, we offer scalable manufacturing to meet your most demanding specifications.

  • Dimensional Tolerance: Precision control up to ±0.01mm (depending on material thickness).

  • Thickness Range: Expert processing of thin foils and sheets from 0.02mm to 2.0mm.

  • Min. Feature Size: Capable of achieving ultra-fine holes and slots down to 0.1mm with superior edge clarity.

  • Surface Finishing: Integrated one-stop services including plating (Gold, Silver, Nickel, Tin), electrophoresis, passivation, and sandblasting.

  • Rapid Prototyping: Fast-track delivery as quick as 24 hours to accelerate your R&D cycle.

What is photochemical etching

The Essence: Controlled Chemical Erosion

At its core, etching is not a mechanical cutting process but a controlled redox reaction that dissolves metal atoms layer by layer. A chemically stable photoresist is applied to protect specific areas, while the exposed metal reacts with acidic or alkaline etchants.

The Role of “Photo”: The Graphic Carrier

Why is it called “Photo” etching? Because the precision of the geometry depends entirely on the UV exposure process. CAD designs are printed on high-resolution film/photo-masks, and light hardens the photoresist through these masks. This avoids the physical wear associated with traditional dies, ensuring the 1st part and the 10,000th part are identical.

Micro-Performance: Double-sided Spray & “Side-Etch”

During processing, metal sheets pass through an etcher where nozzles spray etchant onto both sides simultaneously. Double-sided etching allows the chemistry to meet in the middle to create through-holes. Expert facilities compensate for “undercut” (sideways erosion) by calculating the Etch Factor to ensure final tolerance accuracy.

Our process

We adhere to a standardized, multi-step production flow to ensure zero-defect quality:

materials
Material Preparation

Precision cleaning, degreasing, and dehydration of metal sheets.

lamination
Lamination/Coating

Uniform application of high-resolution photoresist to both sides of the metal.

developing
Developing

Removing unexposed resist to reveal the areas of metal to be etched.

uv exposure
UV Exposure

Transferring CAD designs via photo-masks onto the resist using high-precision UV exposure units.

chemical etching
Chemical Etching

Passing sheets through an automated conveyorized etcher with controlled temperature, pressure, and chemistry.

stripping & cleaning
Stripping & Cleaning

Removing the remaining resist followed by multi-stage ultrasonic cleaning.

Photochemical Etching Product 6
Finished product
workshop
Inspection

100% critical dimension inspection.

Why choose our etching service

Stress-Free & Burr-Free

Unlike stamping, etching exerts no mechanical force. Unlike laser cutting, it creates no Heat Affected Zone. The physical properties of the metal remain unaltered.

Unlimited Complexity

The cost of etching does not increase with the complexity of the design. Intricate geometries, such as micro-mesh arrays, are easily produced.

Low-Cost Tooling

Utilizing digital or glass photo-masks, tooling costs are typically 1/10th of traditional hard tooling, allowing for low-risk design iterations.

High Scalability

Hundreds of parts can be etched simultaneously on a single sheet, ensuring maximum throughput and consistency.

Materials we use

We maintain a stock of over 50 types of premium industrial materials to accommodate both routine and emergency requirements. All materials in our inventory are fully certified and traceable, engineered to meet stringent performance standards for hardness, tensile strength, and corrosion resistance.

we also offer a flexible Custom Material Sourcing service for specialized application scenarios. If your project requires unique alloys or specific technical properties, please provide the precise material grade/designation, and our technical team will provide an accurate quotation tailored to your specifications.

Industries we serve

Precise laser cutting technology—characterized by its high precision (reaching the micron level), minimal heat-affected zone, and non-contact processing—has permeated numerous high-tech and advanced manufacturing sectors.

Electronics Industry

Electronics & Semiconductors

SMT Stencils、Lead Frames、EMI/RFI Shielding Can、Vapor Chambers

Automotive Industry

Automotive Industry

Bipolar Plates、Interior Decorative Trim、Sensor Springs、Filter Meshes

Optics & Acoustics

Optics & Acoustics

Aperture Blades、Optical Shutters、Speaker Grills

Aerospace Industry

Aerospace Industry

Heat Exchanger Fins、Satellite Mesh Antennas、Aerospace Shims、Encoder Disks

Medical Device Industry

Medical Device Industry

Orthopedic Implants、Surgical Blades & Needles、Stents、Blood Filters

Consumer Appliances

Consumer Appliances

Shaver Foils、Coffee/Tea Filters、(Juicer Screens

CONTACT

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