Blogs, white papers, videos and pillar pages talking about machined RF shields - the idea is or was to start creating inbound content in 2019 to attract more people to our website. It’s my understanding that if we did a good job publishing content, our engineering friends would somehow just get it and start specifying our products and services. In case you didn’t know, our customers are supposed to be 60% sold by the time someone from Modus™ actually talks with them! I absolutely love the idea, but in today’s content overloaded world, I’m not convinced the model works.
Just like a 500-horsepower sports car, SigShield™ certainly isn’t right for everyone. If you’re sitting in stop-and-go traffic (a nod to our friends in the Bay Area!), the only thing you’re going to be able to do with your 500-HP motor is to listen to it purr. No, not everyone in the Bay Area drives a Tesla, yet! The SigShield™ product realization process fits perfectly in certain situations. The real purpose of this post is to identify a few circumstances where SigShield™ might be an attractive option.
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What makes Modus™ unique is as much our process as it is our product. Not just the standard and expected process of manufacturing, but the dedication to evolution in our work for the benefit of our customers. Our custom machined RF shields are the perfect example of this commitment in action. The SigShield™ product realization process was specifically created to help customers meet demanding project requirements and the insane deadlines they face.
Historically a rubber seal and gasket company, Modus Advanced, Inc. recently ventured into the machining business due to increased demand for quick turn RF shields. We now produce complete radio frequency (RF) shields from start to finish, beginning with the machining of the aluminum to the dispensing of a form-in-place (FIP) gasket.
Engineers can spend days or even weeks designing the ideal aluminum RF shield for their application. Fastener placement, wall thickness, cavity location, materials and many other factors are engineered to optimize performance. When Modus Advanced, Inc. began milling RF shields, the company was faced with a question; which of the many choices of measuring equipment is best suited to verify our processes are producing shields that meet customer’s specifications?
Silicone form-in-place (FIP) electromagnetic interference (EMI) shielding gaskets have a job to do. The electrically conductive FIP gasket bridges the gap between machined aluminum shields and PC boards create a faraday cage. When designed correctly, machined aluminum shields with conductive FIP gaskets provide effective EMI protection for sensitive electronics. What does “designed correctly” mean? There are obviously many factors that affect shielding performance. They’re all fun and exciting to talk about, but our focus in this blog post is on the use of mechanical compression stops to help avoid gasket related issues.