TEM Products
Bare TEM Grids – Rectangular Mesh
Rectangular mesh TEM grids designed to provide larger viewing areas while maintaining stable sample support.
Description
🔹 Description
Rectangular mesh TEM grids feature elongated openings arranged in a rectangular pattern, providing a larger viewing area compared to standard square mesh grids.
The design reduces the number of grid bars in the field of view while maintaining sufficient mechanical support for the specimen.
🔹 Specifications
| Product: | Transmission electron microscopy (TEM) grids / copper (Cu) grids |
| Model: | Bare grids with rectangular mesh and without supporting film |
| Grid diameter: | 3.05 mm |
| Mesh: | 50 – 400 mesh |
| Material: | Cu |
🔹 Mesh Structure
Rectangular mesh is typically defined by two mesh values:
- Long direction (e.g., 300)
- Short direction (e.g., 75)
This creates elongated openings with increased open area compared to square mesh.
🔹 Key Features
- Rectangular mesh structure with elongated openings
- Larger open viewing area than square mesh
- Reduced grid bar interference in imaging
- Maintains good mechanical stability
- Suitable for alignment with tilt axis in tomography
🔹 Applications
- TEM imaging requiring larger observation area
- Electron tomography (aligned with tilt axis)
- Nanomaterial and thin film analysis
- Applications requiring reduced grid shadow
🔹 Square vs Rectangular vs Slot
| Type | Features |
|---|---|
| Square Mesh | Standard, uniform grid |
| Rectangular Mesh | Larger open area, fewer grid bars |
| Slot Grid | Single large opening, minimal structure |
🔹Related Dimensions for TEM Grids
| Mesh | Hole Size / µm | Line Width / µm |
| 50 | 420 | 80 |
| 75 | 285 | 55 |
| 100 | 205 | 45 |
| 150 | 125 | 40 |
| 175 | 108 | 37 |
| 200 | 90 | 35 |
| 250 | 70 | 30 |
| 300 | 58 | 25 |
| 400 | 37 | 25 |
| 1000 | 19 | 5 |
| 2000 | 7.5 | 5 |
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