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Flexible Substrate

Today’s technology consists of complex internal pieces that transmit numerous signals between the user commands and the system memory. As devices become smaller and more advanced, manufacturers require materials that can handle the stresses and demands of various conditions and uses. In decades past, technology was limited by rigid inner-parts that could buckle under intense levels of stress. In settings where there was too much heat or vibration, any device that contained a printed circuit board (PCB) could easily cease to function. Recently, however, technology has greatly improved thanks to the introduction of flexible substrates. Table of Content What Is a Flexible Substrate? Flexible Substrate Uses How Are Flexible Substrates Used in PCBs? Benefits of Flexible Substrates The Future of Flexible Substrates Flexible Substrate PCBs From Millennium Circuits What Is a Flexible Substrate? A flexible substrate is a thin, heat-resistant material that is typically made of polymers like polyimide and

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Design For Manufacturing PCBs

Jump To: What Is Design for Manufacturing? What’s the Purpose of DFM? The DFM Factors How Design for Manufacturing Translates Into PCB Layout DFM Checks From Millennium Circuits Limited Design for Manufacturing PCBs   Throughout the manufacturing and business sectors, a vast number of machines rely on printed circuit boards, or PCBs. Likewise, the capabilities of PCBs make the devices consumers use daily a reality. With so much at stake in the design and manufacturing of PCBs, it is crucial to implement production with maximum efficiency. For this to happen, however, all the parties involved in the design stage and manufacturing process must be in constant contact to see a product idea to its fruition. Here is where the concept known as design for manufacturing and its sequence of steps come into play. What Is Design for Manufacturing? Design for manufacturing (DFM) is a process that enables manufacturers to examine

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Overcoming PCB Electromagnetic Issues

Jump To: Why It’s Important to Avoid Electromagnetic Interference | EMC Design Principles to Prevent and Fix Electromagnetic Problems | 1. Ground Plane | 2. Trace Layout | 3. Component Arrangement | 4. EMI Shielding | EMC Design From Millennium Circuits Limited | Overcoming PCB Electromagnetic Issues Electromagnetic issues consistently plague PCB designers. System design engineers must always monitor electromagnetic compatibility and interference. Unfortunately, even small design problems can result in electromagnetic difficulties. These issues are even more common than ever, with board designs shrinking and customers demanding higher speeds. The two primary issues at play are electromagnetic compatibility and electromagnetic interference. Electromagnetic compatibility, or EMC, involves the generation, propagation and reception of electromagnetic energy, generally through poor design. Electromagnetic interference, or EMI, refers to the unwanted and damaging effects of EMC, as well as electromagnetic interference from environmental sources. Too much EMI can result in a defective or damaged product. Any PCB designer should follow EMC design rules to minimize the

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The Benefits of Prototyping PCBs

Jump To: The Benefits of Prototyping PCBs | What Is a PCB Prototype? | Benefits of Prototyping | 1. Reduced Timeline | 2. Manufacturing Review and Assistance |  3. Accurate, Reliable Prototype | 4. Test Components Individually  | 5. Reduced Costs | When to Use Prototypes | Get Quality Prototyping From Millennium Circuits Limited The Benefits of Prototyping PCBs Before beginning a full production run, it’s essential to ensure that a printed circuit board (PCB) is functioning properly. Regardless of how carefully designers work on the project, small mistakes and invisible problems always pose a threat to the functionality of the final product. If these problems aren’t caught before full production, it can be extremely costly for the project as a whole. As a result, many engineers regularly order prototype boards before full-scale manufacturing. Prototyping is one of the essential services we offer at Millennium Circuits Limited, but not everyone is familiar with prototype services and their benefits

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Types of Vias

Jump To: What Is a Via? | Main Types of Vias | How to Determine the Right Via Requirements for Your PCB Types of Vias   In electronics and computing devices, the circuitry is conducted by a tiny green board that transfers various signals from the control prompts and to the screen. In every smartphone, for example, a printed circuit board (PCB) can be found inside with various chips and components that conduct the signals for thousands of different features and commands. Each time you push one of the prompts on the touchscreen, you are activating one of the signals on the internal board. Most of these signals are conducted through PCB vias. What Is a Via? In a printed circuit board, vias are holes that pass through the layers of the board for the purpose of conductivity. Each hole functions as a conductive path through which electrical signals are

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How to Choose A PCB Manufacturer

Jump To: How to Choose A PCB Manufacturer | Questions to Keep In Mind When Choosing a PCB Manufacturer | What to Consider Before Choosing a PCB Manufacturer | Types of Boards and Substrates Available | The Industries They Serve | Millennium Circuits Limited: Redefining Customer Service  How to Choose A PCB Manufacturer Your printed circuit boards (PCBs) are crucial to the proper operation of your product, so it’s essential that you find a PCB manufacturer that can reliably, efficiently and cost-effectively produce the boards you need. There are a lot of PCB manufacturers to choose from, however, which can make choosing the right one challenging. To help with this, we’ve put together this guide to choosing the right PCB manufacturer. Let’s take a look at some of the key things you should consider when making this crucial decision. Questions to Keep In Mind When Choosing a PCB Manufacturer When choosing a manufacturer, you should have some questions prepared. You can

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Copper Filling of Blind Microvias

Jump To: Copper Filling of Blind Microvias | What Are Microvias? | What Are Blind and Buried Vias? | Advantages of Copper-Filled Blind Microvias | What Are Copper-Filled Vias? | Challenges Associated | Thermal and Electrical Conductivity | The Copper Filling Process | Copper-Filled Copper Filling of Blind Microvias Vias, the holes through which stacked pads are electrically connected, are essential parts of printed circuit boards (PCBs). As electronic devices, namely smartphones and other similar products, become more popular and shrink in size, the ability to place smaller vias on the board becomes increasingly useful. You also need to be able to reliably transfer signals through the layers of the PCB — which can be accomplished by adding a copper layer to the board substrate — but filling the vias with copper provides extra capacity. Copper-filled blind microvias enable high-density interconnect (HDI) boards and also provide reliable signal transfer. While there are challenges associated with this type of via, they also come with many advantages. Keep reading

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What Is a PCB Legend?

What Is a PCB Legend? A PCB legend is a layer of text placed on a printed circuit board (PCB) to label components and provide other useful information. Sometimes called silkscreen or component identification, legend text is printed on top of the circuit board’s solder mask as one of the last steps in the circuit board manufacturing process. Though a PCB may not technically require a legend to function, this text provides information that’s vital for assembly, testing and troubleshooting by the end user. Some common pieces of information included in a PCB legend include: Reference indicators labeling component types Polarity indicators labeling the polarity of certain components Component outlines indicating where components should go Test points to assist with testing and troubleshooting Manufacturer information, serial numbers and other labeling By indicating proper orientation and placement of components and providing other information about the circuit board, a legend helps ensure

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Rigid PCB vs. Flexible PCB

Rigid PCB vs. Flexible PCB Both rigid and flexible printed circuit boards (PCBs) serve to connect electronic components in various consumer and non-consumer devices. As the names suggest, a rigid PCB is a circuit board built on a rigid base layer that cannot bend, while a flexible PCB, also called a flex circuit, is built on a flexible base capable of bending, twisting and folding. Though traditional and flexible PCBs both fulfill the same basic purpose, it’s important to note that they have many differences. Flexible circuits are more than just PCBs that bend — they’re manufactured differently from rigid PCBs and offer various performance benefits and drawbacks. Learn more about the properties of rigid PCBs versus flexible PCBs below. How Are Rigid PCBs and Flex Circuits Different? A rigid PCB, usually known simply as a PCB, is what most people think of when they imagine a circuit board. These

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PCB Lead-Free Regulations

PCB Lead-Free Regulations Until recently, lead was almost ubiquitous in the construction of printed circuit boards (PCBs). Due to its melting point and ability to form strong bonds between surfaces, a eutectic lead-tin alloy proved highly effective as a solder material. However, as electronic waste volumes increased, the use of lead in circuit boards came under scrutiny in Europe and elsewhere. Lead is a toxic material known to cause serious health and developmental problems in humans and animals. Though electronics containing lead may not pose major threats while in the hands of consumers, lead can leak into the environment after devices are discarded in landfills. To prevent excess amounts of lead from entering the ground, water and air, several governments have placed restrictions on the use of lead in printed circuit boards. What Regulations Control the Use of Lead in PCBs? Two main regulations control the use of lead in

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PCB Glossary

  • Land

    The portion of the conductive pattern on printed circuits designated for the mounting or attachment of components. Also known as a pad.