Photochemical Etching Materials: Types, Properties and Uses
Photochemical etching materials are metals and alloys that can be shaped with photoresist, ultraviolet light, and controlled chemical etching. The process is mainly used with metal sheet, strip, and foil. Understanding the photochemical etching process helps engineers select suitable materials and designs. Common materials include stainless steel, copper, brass, phosphor bronze, beryllium copper, aluminum, titanium, […]
Photochemical Etching: Process, Materials, Tolerances & Design Guide
Photochemical etching is a precision metal manufacturing process. It uses photoresist, ultraviolet light, and controlled chemical etching to remove selected areas from a metal sheet. The process is also called photo etching, photochemical machining, or PCM. Engineers often use photochemical etching for thin, detailed parts that need clean edges and repeatable features. Typical parts include […]
Membrane Electrode Assembly (MEA) in Fuel Cells: How It Works
A membrane electrode assembly, or MEA, is the electrochemical core of a proton exchange membrane fuel cell. It combines a proton-conducting membrane, catalyst layers, and gas diffusion layers into a structure where hydrogen and oxygen react to produce electricity, water, and heat. The MEA does not operate alone. It is compressed between bipolar plates that […]
Stainless Steel Etching: Costs, Uses, and Expert Tips
Stainless steel etching is used to produce thin metal parts with detailed openings, slots, channels, and complex profiles. It is often selected for components that may be difficult to manufacture with mechanical cutting or hard tooling. However, the cost and quality of etched stainless steel parts depend on more than the basic process. Material grade, […]
Proton Exchange Membrane Fuel Cell Structure & Key Components
What Is a Proton Exchange Membrane Fuel Cell? Proton exchange membrane fuel cells, also known as polymer electrolyte fuel cells, are low-temperature fuel cells that typically operate below 100°C. To compare PEMFCs with AFC, MCFC, SOFC, and DMFC systems, see this fuel cell classification guide. This makes them suitable for a wide range of PEM […]
Understanding the Importance of Board-Level EMI Protection
The increased use of modern electronic devices at higher speeds and closer spacing now renders EMI a significant design problem. From the vicinity where interference is most likely to take place, right on the PCB board-level, EMI shielding is a must. Custom board-level EMI shielding attenuates unwanted noise at the point of origin, resulting in […]
Top 9 EMI Shielding Solutions Manufacturers You Can Trust
Electromagnetic interference can affect signal integrity, equipment reliability, and EMC compliance. Before comparing suppliers, engineers can review this EMI/RFI shielding guide to understand shielding principles, grounding, material selection, gaps, seams, and frequency-related design factors. This guide compares nine companies that serve different parts of the EMI shielding market, including custom metal shields, conductive materials, filters, […]
What Is a Lead Frame? Types, Materials & Manufacturing Process Explained
A lead frame is a key metal structure used in semiconductor packaging. It supports the silicon die, provides electrical pathways between the chip and external circuits, and helps transfer heat away from the device during operation. For engineers and buyers, understanding how a lead frame works helps them make better decisions about design, materials, manufacturing, […]
The Role of Custom Made Shims in Industrial Accuracy
The precision of alignments is very important in ensuring the working life and reliability of industrial machinery. The smallest space error may lead to vibration, interference, and tolerance. These custom-made shims are used when mechanical assemblies require precise gap control, leveling, or component alignment. From high-quality precision laser cut custom made shims, we produce the […]