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Standard Membranes - Round Frames

Silicon Nitride Round Frame (TEM) Windows

High-performance sample supports for transmission electron microscopy.

Norcada offers a wide selection of silicon nitride (SiNx) membrane windows for Transmission Electron Microscopy (TEM). Designed for compatibility, reliability, and clarity, these devices are built on 3.0 mm standard-format silicon frames and offer a low-stress, durable membrane surface optimized for high-resolution analysis.

Key Features:

  • Membrane thickness options: 5 nm – 1000 nm

  • Optimized stress SiNx for minimal distortion and high mechanical stability

  • Frame thickness: 100 µm or 200 µm, circular or octagon shaped

  • Fits within a 3.0 mm diameter circle—compatible with most standard TEM holders

  • Cleanroom-packaged in 2″ × 2″ gelpaks (10 devices per pack) or slider boxes

Multi-Window and Array TEM Grids:

  • Standard 3 mm silicon frame (circular or octagonal)

  • 9-window layout in a grid pattern, custom layouts and denser arrays are available

  • 100 µm or 200 µm frame thickness for mechanical support

  • Available in custom SiNx thicknesses

Specification Ranges:

  • Membrane stress: 10 MPa to 1100 MPa

  • Thickness: 10 nm to 6000 nm

  • Membrane area: 5 µm × 5 µm up to 100 mm × 100 mm (or Ø20 µm to Ø100 mm)

  • Frame size: 1 mm × 1 mm up to 150 mm × 150 mm

  • Frame thickness: 100 µm (MX), 200 µm (NX), 380 µm (PX), 500 µm (QX), and thicker on request

  • Formats: Single-window or multi-window arrays

Looking for something more specialized? We also offer SiNx membranes as part of advanced solutions for:

Looking for devices optimized for nanopore experiments, genomics, or proteomics? Visit our Nanopore Products page or contact us for guidance.

Round Frame (TEM) nitride windows on 200µm thick silicon frame

*Prices are in USD per pack of 10 devices

Part NumberNitride Thick.Window SizePrice/Pack
NT005Z10nm0.05×0.05mm$190
NT025Z10nm0.25×0.25mm$190
NT050Z10nm0.50×0.50mm$190
NT005Y20nm0.05×0.05mm$170
NT025Y20nm0.25×0.25mm$170
NT050Y20nm0.50×0.50mm$170
NT005X30nm0.05×0.05mm$150
NT025X30nm0.25×0.25mm$150
NT050X30nm0.50×0.50mm$150
NT025A50nm0.25×0.25mm$110
NT050A50nm0.50×0.50mm$110
NT025C100nm0.25×0.25mm$110
NT050C100nm0.50×0.50mm$110
NT025D200nm0.25×0.25mm$110
NT050D200nm0.50×0.50mm$110
NT015F1000nm0.15×0.15mmPlease Contact
NT050F1000nm0.50×0.50mmPlease Contact

Our 3×3 Window Array TEM Grids offer nine evenly spaced 0.1 mm × 0.1 mm square membranes on a single standard TEM frame. Ideal for researchers conducting parallel experiments or comparative imaging across multiple regions. Ideal for high-throughput analyses or multiple parallel experiments.

*Prices are in USD per pack of 10 devices

Part NumberNitride Thick.Window SizeArray SizeSpace Between WindowsPrice/Pack
TA301Z10nm0.1×0.1mm3×30.35mmPlease Contact
TA301Y20nm0.1×0.1mm3×30.35mm$200
TA301X30nm0.1×0.1mm3×30.35mm$190
TA301A50nm0.1×0.1mm3×30.35mm$170

Location-Tagged Porous SiNx TEM Grids

Precision navigation with micro-patterned, trackable membranes.

These holey silicon nitride TEM grids feature micro-sized pores distributed across the membrane area, combined with coordinate markings in X and Y directions. This enables precise sample tracking during imaging, ideal for particle tracking and localization or correlative studies.

  • 0.5 mm × 0.5 mm SiNx window on 3 mm silicon frame

  • Micro-perforated patterns for high-contrast imaging

  • Integrated edge markings for region identification

  • Cryo-TEM and 2D materials compatible
Location-Tagged Holey Nitride Windows on 200µm Round Frame (TEM) Silicon Grid

*Prices are in USD per pack of 10 devices

Part NumberNitride Thick.Window SizeHole Dia.Hole SpacingPrice/Pack
NH050A250nm0.5×0.5mm2.0µm3.0µm$370
NH050D2200nm0.5×0.5mm2.0µm3.0µm$360
NH050D2P (half-porous, half solid membrane)200nm0.5×0.5mm2.0µm3.0µm$330

Silicon Nitride Membrane Windows for TEM and Tomography

Expanded viewing angles for specialized analysis.

Our slot-format SiNx windows provide larger continuous membrane areas for improved visibility in applications requiring greater angular access in TEM.

Available formats:

  • Single-window: 1.9 mm × 0.6 mm

  • Dual-window: 1.8 mm × 0.1 mm, 2 windows on a single frame

  • Frame thickness: 100 µm for reduced edge interference

Silicon Nitride TEM and Tomography Windows on 100µm Thickness Silicon frame

*Prices are in USD per pack of 10 devices

Part NumberNitride Thick.Window Size# of WindowsPrice/Pack
M1S18003U7.5nm1.8×0.03mm1Please Contact
M1S18003YZ15nm1.8×0.03mm1$330
M1S1906A50nm1.9×0.6mm1$250

Porous SiNx Membranes for TEM

Engineered pores for imaging, filtration, and particle studies.

Norcada’s nano- and micro-porous SiNx membranes are available with controlled pore diameters and pitch spacing arranged on square lattices. Ideal for biological filtering, contrast tuning, and custom imaging protocols.

  • Precise pore placement for application-specific performance

  • Pore array centered on a square SiNx membrane

For more information look at our Norcada Porous Membranes

Looking for a specific pore size or pitch? Contact our team

Custom Fabrication & Warranty

Tailored solutions for advanced research.

Norcada supports a wide range of custom TEM grid fabrication services to meet your project’s specific needs. Our engineers can produce:

  • Non-standard frame sizes or shapes

  • Ultra-thin or patterned membranes

  • Multi-window arrays

  • Windows with integrated electrodes, spacers, or heaters

Have a custom idea in mind? Get in touch and we’ll work with you to make it a reality.

Quality Assurance: All Norcada products are covered by a 90-day warranty against fabrication defects.

Need Custom Fabrication for Your Project?

Reach out to us to learn more about how we can customize your solutions or visit our Innovation Platform page for more information.