FPH (Flat Plug Hole) Printed Wiring Board
Overview
Perform permanent filling and lid plating in the through hole and it becomes a printed wiring board corresponding to high density mounting.
FPH (flat plug) structure
10 layer FPH (flat plug)
※ Figure changed to 8 layers 10 layers
Use resin / copper paste for permanent filling
- Features
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It is possible to miniaturize the board by implementing permanent filling in the through hole, forming the part land right above the through hole after the secondary copper plating.
- Use
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AV equipment · home appliances
Car audio / navigation
Standard specification
| Items | Standard specification | |||
|---|---|---|---|---|
| External layer | Min. Conductor width | 0.100mm | ||
| Min. Spacing of conductor | 0.100mm | |||
| Internal layer | Min. Conductor width | 0.100mm | ||
| Min. Spacing of conductor | 0.100mm | |||
| Conductor thickness of external layer | 35µm≦ | |||
| Conductor thickness of internal layer | 12, 18, 35µm | |||
| Plating thickness of through hole (Combination Type) | 10≦ 0.4-0.6 |
15≦ 0.8-1.2 |
20≦ 1.2-1.6 |
|
| FPH hole diameter | 0.2≦ 0.4-0.6 |
0.25≦ 0.8-1.2 |
0.3≦ 1.2-1.6 |
|
| Minimum distance between edge of FPH hall | FPH-FPH : 0.4≦ FPH-PTH : 0.8≦ |
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| Number of layer | 2, 4, 6, 8 | |||
| Board thickness | 0.4 – 1.6 | |||