Search found 18 matches

by Mike Dong
30 Jul 2020, 02:18
Forum: Basic Schematic and PCB Design
Topic: Who knows via in PCB design?
Replies: 1
Views: 549

Re: Who knows via in PCB design?

No it is not. Make a small trace and put the via there. The reason is the via can suck up the solder and make the pad dry if you are reflowing. Also, the via may be off-center if the pad is small. But if the via is small and the pad is large, and you are hand soldering you could probably get away wi...
by Mike Dong
20 Jul 2020, 06:30
Forum: PCB Manufacturing Questions
Topic: What is tenting vias in PCB fabrication?
Replies: 0
Views: 435

What is tenting vias in PCB fabrication?

It’s the most popular and mature process in PCB fabrication , and tenting vias mean to cover the annular ring and via hole with solder mask, which is mainly in covering the annular ring to prevent exposure to the elements and reduce accidental shorting or contact with the circuit. No special steps a...
by Mike Dong
17 Jul 2020, 06:16
Forum: PCB Manufacturing Questions
Topic: What is a BOM (bill of materials) and why is it so important?
Replies: 0
Views: 453

What is a BOM (bill of materials) and why is it so important?

A bill of materials ( BOM ) is a complete list of raw materials, components, and assemblies that a manufacturer needs to create a certain product. Not only does a BOM outline of what manufactured and raw materials are needed to build a part, but it also includes the equipment and tools needed to bui...
by Mike Dong
15 Jul 2020, 22:43
Forum: PCB Manufacturing Questions
Topic: Why is the surface of circuit board blistering?
Replies: 0
Views: 448

Why is the surface of circuit board blistering?

In fact, the circuit board on the surface is blistering, which refers to poor joint adhesion, what’s worse, there is inferior quality on the PCB surface, including two aspects as the following: 1. the problem of cleanliness on the PCB surface; 2. micro-roughness on the surface. So the reason why all...
by Mike Dong
14 Jul 2020, 05:45
Forum: PCB Manufacturing Questions
Topic: Why do you require the vias when designing a PCB?
Replies: 0
Views: 448

Why do you require the vias when designing a PCB?

There will not require the vias if the circuit is very simple. But it does require the vias when designing a multi-layer PCB in your PCB fabrication . 1. In the case of a multi-layer board, there have a decent density of components in vias. 2. With the multi-layer PCB increases, there will be more a...
by Mike Dong
11 Jul 2020, 00:11
Forum: Hobby Circuits and Small Projects
Topic: AC HA Airconditioner Home Automation from Customer in PCBGOGO
Replies: 0
Views: 809

AC HA Airconditioner Home Automation from Customer in PCBGOGO

This project is targeted at providing a wifi access to Toshiba split system A/Cs. The board hides completely inside the Hi-Wall unit and allows web access as well as home automation server to control the climate.
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by Mike Dong
09 Jul 2020, 05:54
Forum: PCB Manufacturing Questions
Topic: When should I choose 2 layers PCB or 4 layers PCB?
Replies: 0
Views: 459

When should I choose 2 layers PCB or 4 layers PCB?

To decide when you choose 2 layers PCB or 4 layers PCB, you need to take the demands of your project into consideration and which type best meets them. There are some questions you need to know: 1. What is the maximum dimension of PCB can be? There is more functionality in a smaller space for 4 laye...
by Mike Dong
07 Jul 2020, 05:11
Forum: Hobby Circuits and Small Projects
Topic: What is a "buried via" on an electronics PCB?
Replies: 0
Views: 484

What is a "buried via" on an electronics PCB?

Buried Via is a copper-plated hole that connects two or more internal layers of the board and is not accessible by the external layers. And it’s not possible to discover the buried vias in a PCB because it is "buried" under the external layer surfaces of the board. What’s more, buried vias also need...
by Mike Dong
02 Jul 2020, 05:56
Forum: PCB Manufacturing Questions
Topic: What is your major concern in PCB fabrication?
Replies: 0
Views: 526

What is your major concern in PCB fabrication?

In general, I firstly take quality into consideration as I ordered my board in PCBGOGO . When you are doing an electronic project and you need the PCB boards, if you don't want to make the board by yourself, you will directly place your board in PCB manufacturer, however, there are some factors you ...
by Mike Dong
30 Jun 2020, 02:04
Forum: PCB Manufacturing Questions
Topic: How to choose your right PCB material in your electronic project?
Replies: 0
Views: 403

How to choose your right PCB material in your electronic project?

When it comes to PCB materials, there are several types you can use, such as FR-4 material, FR-4 high tg, metal core, polyimide, rogers material, as well as HDI board, which are the most popular and have been widely used. However, PCBGOGO uses the following materials for PCB manufacturing: FR-4 Roge...