Streamlined Strategies for Compact PCB Construction and Fabrication
In the world of electronics, the push for smaller, more efficient components has led to the development of a groundbreaking new manufacturing technology. This technology is capable of producing 30 micron lines and spaces on FR4 or Kapton, significantly reducing the size of basic circuit boards.
The move to smaller line widths is a response to the increasing demand for compact electronic devices. By shrinking the size of circuit boards, manufacturers can halve or even quarter the original size of the boards. This size reduction is crucial in an era where smaller devices are becoming the norm.
However, this miniaturization comes with its own challenges. Over-sized holes in micro PCB designs can lead to suboptimal or even nonfunctioning micro PCBs. To overcome this, it is recommended to angle lines when turning a corner rather than using a single 90-degree turn.
Microelectronic printed circuit manufacturers face unique challenges when it comes to creating lines under 75 microns reliably. Traditional dry-film, plate, and etch processes are not suitable for these fine lines. Instead, photolithography, a method of choice for generating very fine lines and spaces under 75 microns, is used.
In micro PCB design, laser microvias are used to interconnect between substrate layers. These vias are dead center in the pad, and their minimum diameter is controlled by the thickness of the laminate. The vias in micro PCBs are encapsulated either in the inner layers of the multilayer or by solder mask, virtually locking them in place.
The manufacturers of fine microcircuits are a diverse group, including Asian captive high volume electronic manufacturers, research and development companies, mid-sized printed circuit companies, and traditional fine line printed circuit production companies. Some notable PCB manufacturers renowned for producing high-quality PCBs, including those for smaller or specialized applications, are Advanced Circuitry International (ACI), Journey Circuits Inc, TechnoTronix, Viasion Technology, Foxconn, Syrma SGS Technology, and Ascent Circuits Pvt. Ltd.
While thinner copper traces should not be a problem unless the design uses higher current, it's essential to ensure the micro PCB manufacturer can meet the base-level requirements for a successful design. Speaking to an engineer at the PCB manufacturing house early on and throughout the design process is highly recommended.
The use of this new technology results in significant real estate savings, making it an exciting development for the electronics industry. With its ability to shrink the size of circuit boards while maintaining reliability and functionality, this technology is set to revolutionize the way electronics are manufactured.
This new technology, capable of producing 30 micron lines and spaces on FR4 or Kapton, is not only advancing the electronics industry with its groundbreaking manufacturing process, but it also incorporates controlled impedance technology for the production of micro PCBs.
As electronic devices become smaller, the challenge arises in maintaining the reliability and functionality of these micro PCBs, and this technology addresses this issue by ensuring control over the impedance of copper traces in the miniaturized circuit boards.
