How Does Skin Effect and Skin Depth Impact EMI/RFI Shielding?

Sheet Metal Stamping Tool Die

Electromagnetic and Radio frequency interference (EMI/RFI) shield design is complex and multi-faceted, combining electrical and mechanical engineering concepts. In practice, shielding is very much an iterative process in which controlling one variable impacts another, leading to even more changes in the design.

One aspect of shield design is knowing which external signals are most critical to keep from interfering with the circuits inside. This is important from the standpoint of material selection, both for the shield structure and any subsequent plating. Knowing the frequency and amplitude of critical signals and how they behave with conductive metals helps you determine the conductivity and thickness required to achieve adequate shielding effectiveness.

What’s the Deal with Packaging? Tape and Reel Encapsulation to Protect Parts

Precision stamped components need to be in an assembly-ready condition when they leave the stamper’s facility, and they need to stay in that condition during transportation and storage and until the customer needs them. Moving components between facilities and general handling present many risks to that assembly-ready condition the stamper achieved. That’s why careful packaging is such an important part of the stamping process.

The Impact of Electromagnetic and Radiofrequency Interference (EMI/RFI)

Electronic devices are everywhere these days – from your cell phone to your garage door opener, to the sensors on the security cameras at the grocery store. They’re controlled by internal circuit boards, which send and receive signals with instructions about what to do (i.e. display the phone’s home screen, send power to the garage door actuator, make the camera record when an object passes).

As devices have become smaller to fit inside machines, vehicles, and medical equipment, they have also become more powerful. Their microprocessors run at higher speeds, and send high-frequency signals between circuits that are very close together.

What you need to know about metals in precision stamping

custom stamped parts

 

Precision stampers use many types of metals, including aluminum alloys, brass alloys, copper, nickel, steel, stainless steel, silver, and bronze. How do you know which is the right material for each project? It has to do with a variety of mechanical and chemical properties that determine how a given metal will behave during stamping and in the finished product. Designers, engineers, and stampers need to work together to find the right balance between satisfying design intent and manufacturability of a part. Metal properties also impact the manufacturing process itself, including selecting the best tool steel, stamping oils, and plating or other finishing.

Some of the most important properties to consider are discussed listed below; however, there may be additional considerations depending on your specific application.

How does cavity resonance affect EMI/RFI shielding?

Electronic devices and the circuit boards that control them are trending smaller and faster all the time. High-speed applications operate at increasing frequencies within the radio and microwave ranges of the electromagnetic (EM) spectrum. The result is slick consumer and industrial electronics but the challenge for designers lies in controlling EM radiation emissions and the impact they can have on performance.

Transfer your tooling or manufacture new? Tips for switching to a new progressive stamper

Change is inevitable in manufacturing. Whether you’re bringing a new product to market, re-engineering an existing one, or just need to find another supplier for your components, chances are you’ll have to switch from one progressive stamper to another at some  point in time.

CEP Technologies Featured in March Edition of FF Journal 2020

What does the future of air traffic look like? How soon will we have our own personal flying cars? What does the road look like to get there? And how is CEP Technologies helping this future come true?

Hyundai and Uber are partnering to bring urban air transportation to the modern world. There are many hurdles to jump before then, but Uber is hoping consumers will be able to order an UberAir by as early as 2023.

But how does CEP Technology fit into all of this? Uber hopes to make fully electric flying cars and that means lots of precision stamped parts for circuit boards and motherboards.

How else is CEP helping with the future of urban air travel? Read this article for more information: https://digital.ffjournal.net/issue/march-2020/flight-plan/

CEP Technologies Provides Comprehensive Menu of Custom Cleaning Applications For Precision Metal Stampings

YONKERS, New York (January 21, 2020) From smart watches and cell towers to vehicle GPS systems, LED lights and the monitoring and communication equipment aboard aircraft; printed circuit boards (PCB) run the gadgets and equipment used in everyday life.  The demand for PCBs—and the precision stamped parts needed to build them— is growing, along with specifications for metal cleaning requirements.  CEP Technologies provides a range of cleaning methods that meet ISO 16232 standards.

Garnett Component Sales Inc. Exclusive Manufacturers’ Rep For CEP Technologies’ Small, Precision Metal Stampings

We are excited to be working with Garnett Component Sales to bring an exceptional experience to our new and returning customers. Learn more about our partnership below:

CEP Technologies Launches New Site To Support Manufacturers That Need Miniature To Small Progressive Metal Stampings

YONKERS, New York. (September 11, 2019) CEP Technologies Corp. has launched a new website for manufacturers that need custom miniature to small progressive stampings. Streamlined navigation makes the site easy to access for automotive OEMs. The site is also designed to support a diverse group of industries that range from telecommunications, consumer goods and EMI/RFI shielding to electrical switches, medical devices, battery contacts, power protection and oil and gas and market spaces in between.