1 Purpose To inspect the uniformity of the outer layer etching lines 2 Testing Conditions At room temperature 3 Testing Instruments ISO Scope® MP30Copper Thickness Tester 4 Test Preparation Take severalFR—4 copper-clad boards, the surface must be clean and free of contaminants, specifications:1/1OZ,1.2mm~1.5mm, 18″×24″ 5 Testing Steps 5.1Take1PCS test board and pass it through the … Read more
As electronic products continue to miniaturize, the heat dissipation requirements of these systems have increased as more functions are packed into smaller devices. This is especially true for PCBs operating under high current. Particularly, power systems with heavy loads, such as lithium-ion batteries used in electric vehicles, require integrated power management systems on the PCB. … Read more
Typically, the current design for PCBs does not exceed 10A, especially in home and consumer electronics, where the continuous working current on a PCB usually does not exceed 2A.However, some product designs for power traces can sustain continuous currents of around 80A. Considering instantaneous currents and leaving a margin for the entire system, the continuous … Read more
Everyone knows that electronic products rely on PCBs (Printed Circuit Boards), which act like the “brain” of electronic devices, controlling various functions. But did you know? One of the key factors determining PCB performance is actually the “thickness of the copper”! Today, we will delve into how copper thickness determines the quality and lifespan of … Read more
Introduction: In the previous article, we introduced the manufacturing process of PCBs, but we would like to delve deeper into the aspects of via copper thickness and the aspect ratio of PCB vias. Definition of PCB Copper Thickness The thickness of copper in a circuit is measured in ounces (oz). So, why is thickness expressed … Read more
1. PCB Current and Trace Width The calculation of PCB current-carrying capacity has long lacked authoritative technical methods and formulas. Experienced CAD engineers can make relatively accurate judgments based on personal experience. However, for new CAD users, this can be quite a challenge. The current-carrying capacity of a PCB depends on the following factors: trace … Read more
In the production of PCBcircuit boards, the thickness of the gold plating and the thickness of the copper foil represent different process parameters. Below are the definitions and commonly used units for these parameters: 1. Copper Thickness (Copper Thickness) The copper thickness refers to the thickness of the copper layer on the surface of the … Read more