What are the materials of flexible PCB
What are the materials of flexible PCB? Next, the professional flexible circuit board manufacturer of YMSHENG will introduce the composition materials of flexible PCB to you.
1. insulation substrate
Insulation substrate is a flexible separating film. As the insulation carrier of the FPC flexible circuit board, the choice of flexible dielectric film needs to completely probe the heat resistance, content, viscosity, mechanical and electrical parcels of the material. Polyimide, polyester, and PTFE membranes are now generally used.
2. Overlay
The covering caste is an separating protective caste covering the face of the FPC flexible circuit board, which can cover the face drivers and meliorate the strength of the substrate. The external graphic protection material generally has the dry film type ( cover film) and the photosensitive development type two.
3. Underpinning plate
The strengthening plate is attached to the original position of the flexible plate, which has the super support and strengthening effect on the flexible film substrate and is accessible for the connection, fixing, or other functions of the FPC flexible circuit board. Bolstering board paraphernalia according to the use of sample selection, generally used polyester, polyimide wastes, library paste glass fiber cloth board, phenolic paperboard or brand plate, aluminum plate,etc.
4. Relating distance
The function of the cement is to bond the film to the counter or to bond the film to the covering film. Different types of bonds can be used for different film substrates. For illustration, polyester bonds and polyimide bonds are different. The bonds for polyimide substrates can be divided into library paste bonds and acrylic bonds. Choose to examine the material fluidity and thermal expansion measure.
To learn more, please click here:
YONGMINGSHENG TECHNOLOGY CO., LTD.
pcb manufacturers china:https://www.ymspcb.com/
评论
发表评论