As it's name suggests, a microvia is just a very small version of a typical via, but the structure is a bit different. Microvias have conical frustum shape; the via slopes inwards as it makes a layer transition and terminates at a pad in the next layer. Ideally, microvias will only span a single layer for maximum reliability. Designers can use stacked microvias to form connections across multiple layers, where blind and buried microvias are built up into a stack to reach across multiple layers.    Microvias are the fastest growing new technology for printed circuits. This talk will ..read more

Flexible printed circuit boards (FPCs) offer the highest level of 3D miniaturization. Very low bending radii in combination with ultra fine lines enable our customers to build increasingly smaller and highly integrated devices. Hemeixin production facility have been in this field for many years and manufacture flexible circuits up to 16 layers! We are working with polyimide foils as thin as 12.5 µm and adhesive bond plies starting at a thickness of 12.5 µm. State of the art equipment enables us to produce FPCs with high output, reliability and repeatability. Depending on the dielectric thickne ..read more

A flexible printed circuit board features a combination of several printed circuits as well as components that are positioned on a flexible substrate. These circuit boards are also known as flex circuit boards, flex PCBs, flex circuits, or flexible printed circuits. These printed circuit boards are designed using the same components as rigid printed circuit boards. However, the only difference is the board is made such that it flexes to a desired shape during the application. Flex PCBs are flexible circuits made of very thin substrates with high levels of bendability. A rigid-flex board is a c ..read more

Printed Circuit Boards, or PCBs, are the backbone of modern electronics. These innovative boards serve as the foundation for the seamless operation of our contemporary electronic devices. Whether it's the smartphone in your pocket, the laptop on your desk, or the array of household gadgets, Printed Circuit Boards play an indispensable role. PCBs provide a structured pathway for electrical components to communicate and collaborate. Their significance lies in their ability to connect and support various electronic elements. Therefore, it is no surprise that these critical components of electroni ..read more

When it comes to a multi-layer Printed Circuit Board (PCB), the layers are stacked over each other and are physically fused with each other. But they are electrically separated, with an insulator coating between every two PCB layers. However, these layers have to electrically connect with each other to form a complete circuit. This electrical connection is achieved using a PCB via/circuit board via. A PCB via/circuit board via is a hole that can be drilled through multiple PCB layers and these layers in order to electrically connect them to each other by lining them with conducting metal. So a ..read more

Printed circuit board (PCB) production requires precision and meticulous attention to detail to ensure top-notch performance. PCBs come in different complexities, from single-layer to multilayered designs, and the production steps vary once the first layer is made. Depending on the PCB's structure, the manufacturing process may involve more than twenty steps. The number of steps needed correlates with the complexity of the PCB. Skipping a step or trying to cut corners could harm the circuit board's performance. However, when each step is done correctly, PCBs function as crucial electronic comp ..read more

Stability and reliability of components are paramount in the world of electronics. Printed Circuit Boards (PCB) form the backbone of about all electronic gadgets, serving as the hitch point for components and signal pathways. But there's one vital characteristic that often gets overlooked until thermal conditions become a concern: the glass transition temperature, known in shorthand as TG. This post explores what high TG PCB material is, its importance, its characteristics, and its applications in the electronic industry. Understanding High TG PCB High TG, short for high glass transition tempe ..read more

Are you familiar with the crocodile or Manhattan effect? If not, then you're in luck. These terms describe the concept of PCB tombstone, one of the most common issues manufacturers and technicians face during soldering and assembly. It's up to you whether you see it as a crocodile with its head out of the water, an erect buiding perpendicular to the ground, or a grave's tombstone. The idea is to describe the phenomenon in which a printed circuit board's end escapes the welding areas and stands upright during soldering due to bad design or poor melting technique. In this post, we'll expand tomb ..read more

As the technology industry evolves and advances rapidly, printed circuit boards (PCBs) have become integral to many electronic devices. However, with these boards' increasing complexity and miniaturization, efficient and accurate assembly has become crucial for their proper functioning. This is where fiducial marks come into play. Fiducial marks are small reference points that are used during PCB assembly to ensure precise alignment and measurement of components on the board. Although seemingly simple, understanding what exactly a fiducial mark is and its role in the PCB assembly process can g ..read more

Glass transition temperature (Tg) is the temperature at which the molecular bonds in amorphous, crystalline, or semi-crystalline polymer chains lose some of their rigidity and become more mobile. As a result, they gradually transition from a hard, glassy state to a softer, more liquid state. This chemical phenomenon is incredibly important for various industries, including PCB manufacturing. Modern electronics and printed circuit boards are sensitive to temperature. Hence, fluctuations can impact their functionality and reliability. As temperatures in PCBs rise, the copper, resin, and glass ex ..read more