Silson Products

Search results

Graphene

We provide our silicon nitride membranes coated with exceptional high-quality mono-layer graphene. Chemical Vapour Deposition is used to grow a single layer of graphene on Copper foil which then is transferred onto a wide range of substrates. Silson’s expertise and capabilities allow us to transfer a high quality film following a very strict wet transfer process developed an...

Read More

Silicon Carbide

Comprising an ultra-thin layer of crystalline 3C polytype silicon carbide (SiC) in a silicon frame, and available in a wide range of window sizes and membrane thicknesses. These membranes have superior transmission characteristics in the 1 to 3 nm and 10 to 20nm wavelength range, compared to traditional silicon nitride windows. Simulated transmission data is shown below (LBN...

Read More

Silicon

Mono-crystalline (100) Silicon Membranes Thin silicon membranes are an excellent alternative to silicon nitride when the presence of nitrogen is detrimental to the application, and also offer higher transmission in the soft x-ray / extreme ultraviolet (EUV) region. The silicon used to form these membranes is conductive, which is advantageous for applications where a condu...

Read More

Silicon Nitride

Silicon nitride was widely adopted as the most popular material for x-ray microscopy because of its wide availability and simplicity of processing into free-standing membranes.  Silicon nitride traditionally has a stoichiometry of Si3N4 and the intrinsic stress is circa 1 GPa.  In 1982 Sekimoto et. al from NTT proposed a way to reduce the intrinsic stress by altering the rat...

Read More

Standard Silicon Nitride Membranes

Silson standard silicon nitride membranes are available in both Si3N4 and SiRN with thickness ranging from 10 to 1000 nm, depending on the type of silicon nitride.  Standard frame sizes vary from those compatible with TEM grid holders to 23.5 mm with a wide range of membrane sizes depending on the frame size. Silicon nitride membranes are sized at 0.05, 0.1, 0.25, 0....

Read More

Mono-crystalline (100) Germanium Membranes

Thin germanium membranes are an excellent alternative to silicon nitride when the presence of nitrogen is detrimental to the application. The germanium used to form these membranes is electrically conductive, which is advantageous for applications where a conductive sample support is required, for example to minimise charging effects in electron microscopy. Also, as a single...

Read More

TEM Windows or Grids

Silson manufacture a range of membrane windows specifically designed for TEM applications.  The windows or grids have a 2.65 mm x 2.65 mm silicon frame with etched back corners to allow them to fit within a standard 3.05 mm holder for 3.0 mm diameter grids.  Standard frame thickness is 200 µm but 100 µm frames are also available as an option. Silic...

Read More

Orientation Membranes

We currently manufacture two different types of orientation membranes here at Silson. The first type consists of a small membrane, separate from the centred membrane, which is offset into one of the corners so that orientation can be tracked when there is rotation in the x-y plane. The second type is used to track orientation in the z plane. We create an 'R' mark on t...

Read More

Multielement Windows

The most popular designs of Silson silicon nitride membranes consist of a single square membrane in a larger square frame with the membrane centrally located within that frame. The maximum membrane size available varies as a function of both membrane size and thickness, whether used with no applied pressure or as a vacuum window. If a larger window is required than is ...

Read More