Impedance is the sum of the resistance and reactance of an electrical circuit; it is measured in Ohms. Impedance is an alternating current characteristic in which signal frequency is an important element. The longer the trace or the higher the frequency, the more imperative it becomes to control the trace impedance. Signal frequency is a vital factor for traces which connect to components requiring two to three hundred MHz or more.
Switching power supply generated by electromagnetic interference, often affect the normal work of electronic products, the correct switching power supply PCB layout has become very important. In many cases, a power supply that is perfectly designed on paper may not function properly during initial commissioning because of many problems with the PCB layout of the power supply. In this case,In this case,
In electrical and electronic industry, a schematic diagram is often used to describe the design of equipment. Schematic diagrams are often used for the maintenance and repair of electronic and electromechanical systems. Original schematics were done by hand, using standardized templates or pre-printed adhesive symbols, but today electronic design automationsoftware (EDA or "electrical CAD") is often used.
The essential aim of applying PCB coating is to stop erosion from taking place on circuit boards or PCB components. As a type of special coating sprayed on circuit board surface, PCB coating is mainly responsible for prohibiting moulding, humidity and salt fog from occurring with other functions such as vibration resistance, insulation and circuit board design size reduction.
The PCBs of yesterday were mainly rigid. In this contemporary era of mobile technologies where everybody is inching toward miniaturization, a will need was felt for circuit boards that were lightweight, flexible, thin, compact, and had high wiring density. Flexible printed circuit boards were invented to answer these requirements. These are printed boards that can be three-dimensionally wired and may be reshaped to fit accessible space.
Taiwan's current semiconductor output value ranks second in the world, second only to the United States, and is the first pillar industry supporting Taiwan's economy. At the time of the 6.7-magnitude earthquake that struck southern Taiwan in 2016, many electronic component parks in Taiwan were completely shut down, which had a major impact on the entire electronic components industry.
Have you ever opened up your computer or phone? The PCB or printed circuit board is the flat, typically green, piece that holds all the chips and/or electrical components. Below the green solder mask/overlay,are wires/traces on the board. They connect the components, creating circuits.
Today, the original equipment manufacturing and contract manufacturing environment is tough. For all aspects of the supply chain, companies, regardless of the industry, are required to be more creative. By identifying a vendor that allows product to be stocked will certainly provide a distinct advantage. For example, if a customer has a large order for Printed Circuit Boards (PCBs) or flex circuit boards, but has budget restrictions, it can be set up so that this customer only takes a certain nu
Switching power supply generated by electromagnetic interference, often affect the normal work of electronic products, the correct switching power supply PCB layout has become very important. A power supply that is perfectly designed on paper may not function properly during initial commissioning because of many problems with the PCB layout of the power supply.
Microscopic structure of internal solder joints and IMC (intermetallic compound) structure at the interface of solder and PCB base determine mechanical properties of solder joints. Soldering techniques and later aging of solid phase, together with thermal cycle further determine original microscopic structure and its evolution.