Monthly Archives: July 2010

PCB substrate CCL

Posted by on July 27, 2010 No comments

This time let’s to know the PCB substrate CCL. CCL also known as the PCB substrate. The reinforcement material impregnated with resin, one or both sides covered with copper, made by hot pressing into a  plate material, as copper clad laminates.

It is to do the basic PCB material, often called the substrate CCL. When it is used for multilayer circuit board production, also called core board (CORE).

FR-4 —- Flame Resistant Laminates,our material is now commonly used FR-4, also the most popular used for substrate.

PCB outline processing technology

Posted by on July 20, 2010 No comments

People Who engaged in printed circuit board processing, will be understanding: PCB outline processing is one of the difficulties of the whole PCB processing , most PCBS ARE a rectangle outline, but also a considerable number of PCB with special outline.

Please see the below four PCB outline processing methods:

1. Milling outline: PCB outline processing by CNC milling machine, we should be provides the data of outline and the corresponding hole, and it will be input by programmer. As not so much distance between PCB puzzle, usually about 3mm, so mills generally 3mm in diameter, or 2.4mm. First milling drill hole on the plate, then fixed the PCB and plate, last milling outline.

2. Punching outline: Need to setup mold, then punching outline, correspond the PCB positioning pin and the positioning hole, generally choosing 3.0mm hole as positioning hole.

3. Open “V” groove: Using “V” groove cutting machine along the PCB design “V” slot cut into the PCB parts connected to each other;

4. Drill outline: Using drill machine to drill holes through outline. Normally open “V” groove and drill only for processing assistance.

CMD Circuit specilizing in making high quality printed circuit boards and flexible circuits. Please contact us to know more.

Flexible Circuits Price

Posted by on July 3, 2010 No comments

Almost all the electronics factory purchasement staff have been confused about the changing price of flexible circuits, even if some have many years of experience in the purchasement of flexible circuits  staff has not totally understand the causes. In fact, the price of flexible circuit board by the following multi- factors:

1, flexible circuit boards of the multifarious price caused by different material;
2, flexible circuit boards used in the different production process caused by the multifarious price;
3, the difficulty of flexible circuit board itself caused the multifarious price;
4, customer different requirements will result in different prices;
5, different flexible circuit board manufacturers will course multifarious price;
6, different method of payment of price will course multifarious price;
7, different regional also will course multifarious price.

You can see the above main seven factors consist of flexible circuit boards price. If you have an inquiry about the flexible circuit boards, please don’t hesitate to contact us, we will offer you the very competitive price.