PCB Primer Error Induction (first PCB traces)

Source: Internet
Author: User

(1) Error One

In the schematic of the electrical connection, must appear red fork, otherwise not counted electrical connection:

The following figure:

(1) Error two

The same network designator, on behalf of the electrical connection, when placing the net network designator, also should pay attention to, appear red fork to calculate electrical connection

(1) Error three

When making the schematic library, manually draw the schematic elements, note that the pin cross-out (otherwise all errors):

(1) Error four

When making the elements in the schematic library, the name and identifier must not be reversed, otherwise the generated PCB, there will be no connection:



To ensure that the schematic element identifier and the PCB package identifier one by one corresponds to the correct connection, otherwise the identifier does not correspond, is wrong.



(1) Error Five

When automatically routed, an error occurs as follows:

The reason is that the pad-neck-shrinkage rule (Smdneckdown rule) of the surface-mount element needs to be reset, or the line width of the wiring is reduced. That is, the width of the pad is less than the minimum line width of the wiring, at this time, even when the minimum line width of the wiring, the spacing is not enough.

(You can also change the component to another encapsulated component (e.g. Sot to dip))

(1) Pad and route (ordinary double-deck)

Name

Size

Solder Pads

Outside diameter 60mil, inner diameter 34mil

Dip Pad Pitch

Adjacent 100mil, corresponding to 600mil

Width of the Walk line

8mil (Default 12mil)


Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.