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What is Test Coupon in High Frequency PCB ? |
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 May 19. 2025 |
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In high-frequence PCBs, test coupon is small, dedicated area on board panel for testing and evaluation, representing board's material and manufacturing characteristics related to high-frequency performance.
Test coupon verifies dielectric properties of PCB materials like dielectric constant and loss tangent, which are crucial for high - frequency applications. |
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What is Electrical test in High Frequency PCB ? |
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May 15. 2025 |
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This is a crucial quality control step in the production process of PCBs. The electrical test is mainly conducted to check whether the electrical performance of the PCB meets the design requirements. It includes testing aspects such as the connectivity of the circuits (for example, checking for open circuits, that is, cases where the circuit is interrupted). |
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What is Solder Mask in High Frequency PCB ? |
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May 12. 2025 |
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Solder mask includes top solder mask and bottom solder mask. The solder mask is an insulating material covering the copper foil traces on the surface of a PCB. Its primary function is to prevent short - circuits during the soldering process, such as preventing solder from bridging between adjacent traces and pads where soldering is not required. |
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What is Silkscreen in High Frequency PCB ? |
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May 9. 2025 |
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Silk screen printing refers to a layer of text, symbols, or patterns printed on the surface of a printed circuit board (PCB).Silk screen includes top silkscreen and bottom Silkscreen. It is mainly used to mark the positions, models, polarities of components, as well as some other circuit information, such as the functions of test points and connectors. |
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What is IPC-Class-2 in High Frequency PCB ? |
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May 8. 2025 |
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The IPC is a global trade association that develops and maintains electronics industry standards, covering design, manufacturing, and assembly of PCBs. IPC-Class-2 is an intermediate standard between Class-1 (general-purpose) and Class-3 (high-reliability). |
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What is Pad in High Frequency PCB? |
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May 6. 2025 |
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IPads are metal areas on the surface of a PCB used for soldering the pins or leads of electronic components. They are crucial for establishing both electrical and mechanical connections between components and the circuit board. For example, when soldering a surface-mounted component (SMT) like a chip resistor to the PCB, the resistor's leads are soldered to the corresponding pads on the PCB, integrating the resistor into the circuit. |
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