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About PCB(Printed circuit board)

What is a PCB?

What's a PCB?

Posted on 2023-03-21

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The printed circuit board is the most common name but may also be called “printed wiring boards” or just “the PCB”. Before the development of the PCB, circuits were constructed through a complicated process of point-to-point wiring. This led to frequent failures at wire junctions and short circuits when wire insulation began to age and crack. A significant advance was the development of wire wrapping, where a small gauge wire is literally wrapped around a post at each connection point, creating a gas-tight connection which is highly durable and easily changeable. More about PCB history can be found in Google.

Types of printed circuit boards

Posted on 2023-03-21

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Standard PCB

Our definition of “Standard PCB” is a rigid glass-fibre board with one or more layers. This is by far the most common PCB in today’s production and will cover the most design needs.

HDI PCB

High-dense-interconnect PCBs meet the demand for smaller PCB with more compact components by increasing wiring capabilities. It makes the boards lighter, compact, and conserves space while maintaining excellent performance.

Flexible PCB

Flexible printed circuit boards get the name from the ability to be bent in a working application. This is called dynamic flex. Other flexible design is Intended to be folded to be able to fit a very narrow space in the final assembly.

Rigid-Flex PCB

RIGID-FLEX PCB excels in overcoming space and weight constraints due to spatial degrees of freedom. They can be used to benefit nearly all advanced electrical applications in medicine, military, aerospace, and consumer products, including testing equipment, tools, and automobiles. Apart from the Flexible PCB, the Rigid part of this design, can be made with the same design rules as a standard PCB, and increase the options for the final product.

Metal Core PCB

A metal core printed circuit board uses metal as its base material to spread heat accumulated due to some electronic components operating on the board throughout the board. It is widely used in LED technologies to enable high power in the industry of lighting.

High-Frequency PCB

High-frequency PCBs are often needed while developing high-frequency products, such as satellite systems, radio frequency, microwave, mobile telephone base stations, etc. These communication products usually use high-frequency substrates when designing the PCB.

Solder Paste Stencils

Customized high-precision laser-cut solder paste stencils are used by the subcontractor assembly company to apply solder paste with high accuracy to all places that shall be soldered.

Prototypes & Pilot Runs

PCB prototyping can be the most important step during electronic development. Not only for the designer to verify the function, but also to let the assembly unit check the effectiveness of production.

All you need to know about PCB´s CAN I ORDER PROTOTYPES, AND THEN, HIGH-VOLUME ORDERS FROM QN-PCB?

Posted on 2023-03-21

All you need to know about PCB´s CAN I ORDER PROTOTYPES, AND THEN, HIGH-VOLUME ORDERS FROM QN-PCB?

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Yes. Since we have all kinds of factories, we can offer a wide range of delivery times. Also, many of our volume factories have prototype services in-house, so both prototype and volume will be produced in the factory.

WHAT IS A PCB?

Posted on 2023-03-21

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A PCB (printed circuit board) is a board with a printed copper pattern that forms a given circuit to enable the designer to connect several electronic components rationally. The most common material today for PCB boards is a combination of woven glass fiber and epoxy. For more demanding electronic designs, there are a lot of other base materials, such as ceramics, Teflon, polyimide, aluminum (mcpcb), and more.

WHAT IS A STACK-UP?

Posted on 2023-03-21

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The stack-up is the schematic view of how all copper layers, cores, and prepregs are grouped with data regarding thickness and material selections. Often impedance controlled PCB has this data in the stack-up view as well.

WHEN WAS THE PRINTED CIRCUIT BOARD INVENTED?

Posted on 2023-03-21

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There is no exact date for the invention of the PCB; the truth is that it is a line of innovations that together contributed to today’s PCB. Of course, there is endless material about this on the Internet, but we have tried to pinpoint an unambiguous answer.

WHY IS THE SOLDER MASK GREEN?

Posted on 2023-03-21

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No one knows why just green became the standard color of PCB solder masks. But the rumor says that the electronic production staff in the USA during the second world war had voted about what colors were most friendly to eyes during a long time of work. And the green has become favorite.