Photo Etching division
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- Photo Etching division
- Detailed specification
We conduct precision work on metallic materials using photo etching technology, supplying products to a wide variety of industries including electronic components.
The process of photo etching utilizes the corrosive effects of metals, enabling precision work at the micrometer level without causing burrs.
Compared with press and laser work, photo etching work costs less, can be ordered in small lots, and can be delivered faster at lower prices.
We can integrate everything from design to completion, so please tell us your needs.
Detailed specifications
Dimension and tolerance
Dimension and tolerance are calculated by relation between thickness, type of materials and side-etching
Dimension and tolerance
| thickness of materials | D - torelance | Pitch torelance ~50mm |
Pitch torelance ~150mm |
Pitch torelance ~300mm |
Pitch torelance Over 300mm |
|---|---|---|---|---|---|
| Less than 0.05mm | ±0.02 | ±0.02 | ±0.05 | ±0.10 | ±0.12 |
| 0.05mm | |||||
| 0.10mm | |||||
| 0.20mm | ±0.03 | ||||
| 0.30mm | |||||
| 0.50mm | ±0.05 | ||||
| 0.80mm | ±0.08 | ||||
| 1.00mm | ±0.10 |
The principle is 10% of the thickness
Penetration processing size
| thickness of materials | Minimum permissive dimension. |
|---|---|
| 0.005〜Less than 0.05mm | Torelance is fixed by test processing. |
| 0.05mm〜Less than 0.1mm | Approximately equal to the thickness. Consultation of torelance may be needed. |
| 0.1mm or more | Approximately equal to the thickness. |
| 1mm or more | Consultation of torelance is needed. |
Corner radius
The chemical-etched parts have rounded-corner
Interior angles (R1) at the simple rectangular shape are about 80% of the thickness, external angles (R0) are about 50% similary.
Please consult with us separately about external angles (R0), as a special process is possible for sharp angles.
Taper dimension
There are two procedures of the chemical etching process, single-face etching and double-face etching. There are differences in the taper shape.
Double-face etching
In case of double-face etching, dimension Ab is equal to about 20% of the thickness.
Single-face etching
In case of single-face etching, dimension Ab is equal to about 30〜40% of the thickness.
