Switzer

Shielding keeps unwanted energy contained. Internal EMI shields block noisy driver stages from interfering with sensitive low-noise circuits, while keeping outside signals out. A shield’s overall attenuation performance depends on metal conductivity, seam continuity, operating frequency, and physical aperture dimensions.

Power amplifiers also create substantial heat during high-power operation. Airflow vents and perforated screen covers allow cooling air to move through while keeping electromagnetic fields inside. Screen geometry controls this balance:

-Aperture Size: Hole diameters must stay much smaller than the signal wavelength to prevent RF energy leaks.
-Hole Patterns: Staggered pattern grids maximize open air space without dropping shielding performance.
-Material Thickness: Thicker screens work like tiny waveguides, blocking specific frequency bands more effectively.

Higher operating frequencies mean significantly shorter signal wavelengths. A vent hole pattern that blocks signals at 2 GHz might leak heavily at 28 GHz. Controlling hole sizes, slot lengths, and hole spacing keeps cooling performance high without compromising electromagnetic containment.

Learn more about the role of component design in RF/microwave power amplifier systems in our latest article: https://pulse.ly/dottbfcu7n

RF and microwave power amplifiers need more than fast semiconductors to run reliably. The metal shields, grounding clips, shims, spacers, ventilated panels, and internal heat exchangers in the housing chamber of the device perform the work of providing electrical ground connections, managing thermal flows, regulating airflow, and shielding the device from noise disturbances.

A small physical gap or minor surface bump can ruin signal cleanliness, lower shielding effectiveness, or cause system failure. Getting these internal metal parts right requires a clear understanding of how physical geometry, alloy selection, surface finishes, and manufacturing processes work together.

Photochemical machining (PCM) etches intricate features easily. Fine vent screens, complex grounding tabs, narrow circuit slots, and detailed outlines are etched simultaneously on a single sheet. If initial prototype testing reveals an RF vent hole needs to change size or a grounding tab needs repositioning, engineers simply update the digital artwork file. Revised prototype parts are produced in days, letting engineering teams test iterative revisions without long tooling delays.

Learn more about how low-stress photochemical etching can help RF power amplifier developers resolve hardware challenges and build reliable systems in the latest article on our blog: https://pulse.ly/bpkg0ryf4d

Employee Spotlight: Joe Ferraro | Inside Sales Representative

Years of Experience: 9

What do you do? What do you interact with clients about? How do you try to make them feel when they’re working with you?

"As an Inside Sales Representative at Switzer Manufacturing, I work directly with customers on quotations, orders, lead times, manufacturing capabilities, and project requirements. My goal is to provide clear communication, quick responses, and dependable support, so customers feel confident they have a trusted partner who is invested in their success."

What do you like about working at Switzer?

"I enjoy the collaborative culture at Switzer and the opportunity to help customers solve unique manufacturing challenges. Every project is different, and it's rewarding to work alongside a team that is committed to quality, customer service, and continuous improvement."

What is something people in your industry/niche have to deal with that you want to fix?

"Many customers deal with long lead times, limited communication, and the complexity of working with multiple suppliers. I strive to make the process as simple and straightforward as possible by being responsive, transparent, and focused on helping customers find the best solution for their needs."

Top 3 things I enjoy:

-Fishing tournaments and being on the water
-Watching Football. GO BILLS!!!
-Traveling and exploring new places with my family

Etched foil heaters operate with minimal internal heat storage. Because the resistive foil is thin—often just a few thousandths of an inch—it requires minimal energy to reach operating temperature.

Current flowing through the trace heats the foil in seconds. When current stops, heat dissipates almost instantly, delivering clear operational advantages:

-Shortened Warm-Up Times: Equipment reaches operating temperature quickly, reducing idle waiting during morning startups or batch changeovers.
-Rapid Cool-Down Cycles: Low thermal storage lets systems cool fast, protecting heat-sensitive materials and shortening multi-step processing cycles.
-Tighter Temperature Control: Fast response times let control systems adjust heat output instantly, preventing temperature overshoot and holding setpoints within narrow margins.
-Direct Surface Heating: Heat moves straight into the process rather than warming surrounding support structures.

Claims about energy efficiency require clear technical context. Low thermal mass does not create energy from less power; efficiency gains stem from operational velocity and targeted energy delivery. Less power is wasted heating heavy structural masses during startup, and cycle times decrease because equipment reaches setpoints faster.

Learn more about the industrial applications for precision thermal management in our latest article: https://pulse.ly/tsrt4qdi0y

In industrial thermal operations, thermal lag is a widespread problem. In traditional heaters, the significant mass of the heaters and heavy mounting plates means that thermal inertia is present. As energy is wasted in heating heavy mounting structures, startup, temperature changes, and temperature overshoot are delayed - with the potential for damaging the materials. Thus, thermal lag can limit the efficiency of processes requiring rapid cycling.

Etched foil heating elements eliminate this problem by reducing thermal mass. Bonding thin etched resistive circuits to insulating substrates places heat directly at the working surface. Energy passes directly to the process rather than being absorbed by the metal parts, providing quick heating, fast cooldown periods, and accurate thermal regulation.

Improving process efficiency comes down to delivering thermal energy without delay. Photochemical machining allows engineers to turn complex circuit designs into precise foil heaters that eliminate thermal lag and shorten cycle times.

Learn more about how Switzer leverages PCM to produce reliable thermal solutions for long-term operational success in the latest article on our blog: https://pulse.ly/kyl1zyuqeq

The data center market is in the middle of an unprecedented buildout. AI workloads are driving power density and rack heat output to levels that traditional cooling architectures were never designed for, and operators are racing to keep pace without blowing through their power and water budgets.

That's where precision matters more than ever. Heat exchanger plates, cooling plates, and other thermal management components have to move heat with near-perfect efficiency — every micron of flow channel geometry affects how well a system cools, and how much water and energy it takes to do it.

Photochemical machining (PCM) is uniquely suited to this challenge. It etches complex, burr-free flow channels with tight tolerances and no mechanical stress on the metal, enabling thinner, more intricate designs than stamping or CNC machining allow. The result: components that transfer heat more effectively, support higher-density racks, and help data centers reduce the water and energy they consume for cooling — without sacrificing reliability.

As the industry pushes toward more sustainable, higher-performance infrastructure, manufacturing precision at the component level is becoming a real lever for efficiency at the facility level.

COMPONENT SPOTLIGHT - Flexible Heaters

What Is It?
-Manufacturers requiring localized heat for applications understand the need for dependable flexible heaters. These components can be mounted directly to equipment or other components to provide appropriate thermal transfer based on unique specifications.

There are two common types of flexible heaters: wire wound and etched foil. Etched foil heating elements have become the engineer's preferred option for the precision, efficiency, and design flexibility they bring to demanding applications. Switzer's photochemical etching process produces traces with the dimensional and resistance accuracy that wire wound elements cannot consistently match.

Common Applications:
-Military / Aerospace
-Battery / EV
-Industrial Equipment
-Food Service Equipment
-Semiconductor / Electronics Equipment
-Aviation

Learn more about this component: https://pulse.ly/bqi1zjzvw4

Our Photochemical Machining Resource Library is among the most comprehensive in the industry, and it's entirely FREE for engineers, designers, and procurement professionals to access on the Switzer website!

From fundamental process mechanics and material capabilities to industry-specific applications and detailed design guidelines, you'll find answers to common questions about tolerances, material compatibility, cost considerations, and design best practices.

Explore FAQs for quick answers, review the technical glossary for precision terminology, or compare photochemical etching against alternative processes like laser cutting, stamping, and EDM to understand where this method delivers the greatest value for your specific requirements.

Learn more: https://pulse.ly/47u5lr4vjs

Grid storage hardware extends beyond primary electrical and cooling pathways. Hundreds of secondary metal parts hold modules in place, shield sensitive electronics, and maintain physical isolation. Key components include:

-Thin shims and precision alignment spacers
-Cell compression plates and retaining straps
-EMI shielding layers and ventilation screens
-Flame barriers, sensor brackets, and gasket retainers

While these parts appear secondary, dimensional variations compromise system assembly. A thick shim skews module alignment. A distorted retainer creates a sealing gap that allows moisture ingress. Material selection must account for structural load, galvanic compatibility, and resistance to corrosive outdoor environments.

Learn more about how photochemical machining helps energy storage developers build safer, more efficient grid infrastructure in our latest article: https://pulse.ly/9gdibkqatr

The battery and EV industry is moving faster than ever — and staying ahead means having the right knowledge, the right connections, and the right strategies. The Battery Show Detroit 2026 delivers all three.

Learn and connect with 16,000+ attendees across five in-depth tracks designed to address the battery and EV industry’s most urgent challenges and opportunities—from next-gen chemistries and safety innovations to EV infrastructure, market forecasts, and emerging applications.

You can find Switzer at The Battery Show Detroit 2026 at Booth 5435.

Register for the conference here: https://pulse.ly/snavvcnwnj