HDI Rigid-Flex PCB Applications

HDI rigid flex circuit boards are the perfect solution for electronic devices that require both a rigid and flexible printed circuit board. HDI stands for High-Density Interconnect, and these PCBs are made with micro vias that allow for more connections in a smaller area. This stronger and more reliable connection than traditional PCBs results in several HDI rigid-flex PCB applications.

HDI Rigid Flex | Why do We Care?

HDI Rigid-Flex PCB, also known as multilayer rigid-flex printed circuit boards (PCBs), offers the advantages of both rigid and flexible printed circuit boards. As the name suggests, these boards have a higher density of interconnects or traces than regular PCBs. This is possible using smaller vias, micro-vias, and advanced packaging technologies.

HDI rigid-flex PCBs are made by bonding multiple layers of thin, flexible circuit material. These layers are then laminated together to form a single, flexible PCB. The layers are then bonded together using an adhesive. The resulting laminate is subjected to high temperatures and pressures to ensure a strong bond between the two layers.

In addition, HDI rigid-flex PCBs are made with a thin layer of conductor metal, usually copper on the exterior surface of the PCB. This copper connects the circuitry on the HDI rigid-flex PCB to external electronic components, including capacitors, inductors, resistors, and transistors.

The number of layers can range from 4 to 16, the most common being 8 or 12. The layers are connected using plated through-holes (PTHs) or vias. These boards offer a high degree of flexibility, making them ideal for use in various applications with limited space. Additionally, HDI rigid-flex boards can be made with finer pitch features than rigid or flexible boards, making them ideal for high-density applications.

Application of HDI Rigid-Flex PCB

HDI Rigid-Flex PCBs are used in various electronic devices, including cell phones, laptops, and tablets. They are also used in medical devices, military equipment, and the aerospace industry. Let’s have a look at each of the applications in detail:

Cell Phones, Laptop, and Tablets

HDI rigid-flex printed circuit boards (PCBs) are used in various electronic devices, including phones, laptops, and tablets. HDI rigid-flex PCBs have a higher density of interconnected circuitry than traditional PCBs and are also more flexible. This flexibility makes them ideal for use in electronic devices that need to be able to bend or flex, such as phones and tablets.

Additionally, HDI rigid-flex PCBs are more resistant to vibration and shock than traditional PCBs, making them ideal for use in electronic devices subject to frequent movement or impact.

Medical Devices

Its flexibility and versatility make using HDI rigid-flex possible in several medical devices, such as pacemakers, implantable cardioverter defibrillators (ICDs), and cochlear implants. These boards must be able to withstand the rigors of the human body, as well as the harsh environment of the operating room. HDI Rigid-Flex PCBs, such as MRI machines, are also used in medical devices exposed to extreme temperatures.

HDI Rigid-Flex PCBs allow for the creation of smaller and lighter medical devices. This is important because it reduces the risk of infection and improves patient comfort. In addition, HDI Rigid-Flex PCBs can be designed to flex and bend, making them ideal for wearable medical devices.

Military Equipment

HDI rigid-flex printed circuit boards are increasingly crucial in military equipment. With the rapid development of military technology, the requirements for electronic equipment are also getting higher and higher. The traditional methods can no longer meet the needs of modern warfare. Therefore, the military must use new technologies to enhance its combat effectiveness.

HDI rigid-flex printed circuit boards are an essential part of modern military equipment. They are light, flexible, and resistant to shock and vibration. They can also be customized to meet the specific needs of the military.

This customization allows HDI rigid-flex PCBs to be made more durable and resistant to the elements, making them ideal for use in outdoor environments. With so many advantages, it is no wonder that HDI rigid-flex printed circuit boards play an increasingly important role in military equipment.

Aerospace Industry

HDI rigid-flex printed circuit boards (PCBs) are an ideal solution for aerospace applications that require high reliability and performance in extreme environments. HDI rigid-flex PCBs are constructed with multiple layers of conductive material and dielectric substrate, bonded together to form a rigid board with flexible connectors. This unique construction provides superior strength and durability while allowing design and routing flexibility.

HDI rigid-flex PCBs are used in different aerospace applications, including avionics, satellite communications, and aircraft control systems. HDI rigid-flex PCBs are also an excellent choice for high-density packaging applications requiring miniaturization and weight reduction.

Advantages of HDI Rigid-Flex PCB Over Traditional Rigid-Flex PCB

HDI Rigid-Flex PCBs are becoming more common in various industries. They are more expensive than traditional PCBs, but they offer several advantages. If you are looking for a durable, reliable, and high-quality PCB, then HDI Rigid-Flex is the way to go. Here are some advantages that HDI rigid-flex PCBs offer over traditional rigid-flex PCBs, including:

Thinner circuit boards: HDI rigid-flex PCBs can be as thin as 0.004 inches (0.1 mm), which is about half the thickness of a traditional rigid PCB.
Lighter weight: HDI rigid-flex PCBs are up to 50% lighter than traditional rigid PCBs, making them ideal for use in applications where weight is a concern.
More flexible: HDI rigid-flex PCBs are more flexible than traditional rigid and flex PCBs, making them easier to work with and install in various applications.
Greater reliability: HDI rigid-flex PCBs are more reliable than traditional rigid and flex PCBs due to their thinner circuitry, and higher interconnect density.

Wrapping Up

HDI Rigid-Flex PCBs are more reliable than traditional PCBs. They are less likely to break and more resistant to vibration and shock. HDI Rigid-Flex PCBs are also smaller and lighter than traditional PCBs, making them perfect for many applications in diverse industries.

Concept to finish or problem specific, design engineers are available to assist our customers. Contact rigid flex pcb fabrication house to begin working with the design engineer most able to help you with your specific design needs.