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Standard PCB

Standard PCB`s the most commonly used type of board in a number of applications is subsequently the most commonly produced type of PWB in Europe and Asia.

When to choose standard PCBs?

Let’s say that every electronic engineer aims for a standard PCB since it’s the most cost-effective design. All printed circuit board manufacturers can produce them and the major part of the world’s production is just standard PCB. The only reason for not going for a Standard PCB is if you are forced by a complicated application and/or a very advanced component. Then you may have to consider HDI, Flex, etc. More of this further down.

Capabilities

Copper

18 – 500 um

Thickness

0,2 - 6,0 mm

Layers

1 – 40

Manufacturing time

2 - 25 days

Transport time

1 - 3 days

All you need to know about Standard PCB

Standard

This can probably be up for discussion, but lets say it’s a rigid FR4 PCB
without blind or hidden vias and no microwave requirements. In other words, the most common type of PCB.

The only global standard for qualifying PCBs is the IPC system.

It’s a PCB with FR4 (Epoxy-resin and glass fibre) that is 1,6mm thick with final copper layer thickness of 35 microns, with green soldermask and white silk print. Standard surface treatment are ENIG or Leadfree-HAL.

Its 1,6mm and are 1/16 of an inch. The development of the PCB required a thin board thick enough to carry heavy components and that became 1/16 inch. This became standard and was strengthened by a large range of contacts for 1.6 edge connectors.

Usually in history a lot of components was made in pitch 1/10 inch (100mil), but today there is an infinite number of different divisions of components. Mostly in metric.

Can be any size, but very common is 3,1mm or 3,2mm

Depending on the manufacturer, there is a large variation but the below stackup represents a good average:

35um Cu
230um Prepreg
35um Cu
1000um Core
35um Cu
230um Prepreg
35um Cu

Depending on the manufacturer, there is a large variation but the below stackup represents a good average:

35um Cu
130um Prepreg
35um Cu
500um Core
35um Cu
130um Prepreg
35um Cu
500um Core
35um Cu
130um Prepreg
35um Cu

IPC Standard does not state any default tolerance for x and y, but normal tolerance would be +/-0,1 to +/-0,2mm. Depending on size of PCB and the capability of the manufacturer.

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Capabilities

Copper 18 – 500 um
Thickness 0,2 - 6,0 mm
Layers 1 - 40
Manufacturing time 2 - 25days
Transport time 1 - 3 days

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