FPC Application Market Analysis

missionstatement

flx24       As the development of high technology products, FPC becomes more and more popular. Its application becomes wider and wider. Therefore, let us analyze its market prospects.

 Industry research institute Shuiqingmuhua published “global and China circuit board industry research report of 2009”. The FPC industry emerged in 2002, developed very quickly in 2003 and 2004, and went into the stage of price struggle. In 2006 and 2007 the FPC industry has been in downturn, however in 2008 it began to recover. Even the economy crisis didn’t get in the way of the recovery of FPC industry. On one hand, the price reduction stimulates the demand of FPC; on the other hand, the demand for lighter, thinner, shorter, smaller and high reliability products also creates the room of using FPC. At the same time, the FPC manufacturers which went through price struggle and survived had all faced great pressure. They have already been familiar with the cost control and dealing with stress, and won’t be afraid of the arrival of economy crisis. Cell phone is the critical motive for FPC market enlargement, especially intelligent cell phone and high-end cell phone. The growth of consumer electronics field is also favorable. In consumer electronics such as notebooks, PND, digital camera, DV, LCD TV, plasma TV, media player, frequency of using FPC will increase as its performance and its strive for ultra-thin volume. Notebook and flat panel TV use LED backlights a lot. FPC is the most common used way in which LED connects to the main circuit. Even in 2008 and 2009 it still has great potential to grow. The swing joint between notebook screen and motherboard has great probability of using FPC. (Continued)

How to calculate the thickness of FPCs

As is known to all, the FPCs are divided into single layer, double layers, dual access, multiayer and flex rigid.

Now I want to introduce the basic method of calculating the thickness of FPCs.

(!) single sided FPC

The constructure of single layer FPC is as follows:the board thickness for single sided FPC

25um+20um+35um+20um+25um=125um≈0.12mm

Note: the thickness of adhesive changes according to the thickness of Cu. For 1/2, 1/3 OZ Cu, we usually use 12um adhesive. But for 1OZ Cu, we have to use 20um adhesive.

That’s according to the common material. If we want the board to be thinner, we also can use the adhesiveless material to make the board about 0.8mm thick.

(2) double sided FPC

Double sided FPC means there are two layer of traces in the FPC.

The constructure of double sided FPC is as follows:

the board thickness for double sided FPC25+12+35+12+25+12+35+12+25=193um≈0.20mm