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The Types of PCB Circuit Boards

1. FR-1

Flame retardant copper clad phenolic paper laminate. IPC4101 detailed specification number 02; TgN/A.

 

2. FR-4

  • Flame-retardant copper-clad epoxy E glass fiber cloth laminate and its bonding sheet material. IPC4101 detailed specification number 21; Tg≥100℃.
  • Flame-retardant copper-clad modified or unmodified epoxy E glass fiber cloth laminate and its bonding sheet material. IPC4101 detailed specification number 24; Tg150℃~200℃.
  • Flame-retardant copper clad epoxy/PPO glass cloth laminate and its bonding sheet material. IPC4101 detailed specification number 25; Tg150℃~200℃.
  • Flame-retardant copper-clad modified or unmodified epoxy glass cloth laminate and its bonding sheet material. IPC4101 detailed specification number 26; Tg170℃~220℃.
  • Flame-retardant copper-clad epoxy E glass cloth laminate (used for catalytic addition method). IPC4101 detailed specification number 82; TgN/A; 94vo-cem-1.

 

Flexible PCB Classification

There are adhesive flexible PCB and non-adhesive PCB. The price of the non-adhesive flexible PCB is much higher than that of the adhesive flexible PCB. But the flexibility, the bonding force of the copper foil and the substrate, and the flatness of the pad of non-adhesive flexible PCB is better than the adhesive flexible PCB. Therefore, it is generally only used in the occasions with high requirements, such as COF (CHIPONFLEX, bare chip mounted on flexible board, which requires high flatness of the pad) and so on. Due to its high price, most of the flexible PCB used in the market are still adhesive flexible boards. Since the flexible board is mainly used in occasions that need to be bent, if the design or process is unreasonable, defects such as micro-cracks and open welding are likely to occur.

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Company Info

XPCB Limited is a premium PCB & PCBA manufacturer based in China.

We specialize in multilayer flexible circuits, rigid-flex PCB, HDI PCB, and Rogers PCB.

Quick-turn PCB prototyping is our specialty.  Demanding project is our advantage.

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XPCB Limited
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Tel : +86-136-3163-3671
Fax : +86-755-2301 2705
Email : [email protected]

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