Mica and Single Crystal Substrates Silicon Chip Specimen SupportsCleaving mica involves insertion of a sharp edge or point into an edge or corner of the sheet and gently prying apart the leaves. A good sharp razor blade edge will do the job and in some cases a sharp pointed tweezer may accomplish this.. The freshly exposed micro surface should be used immediately after cleaving to take advantage of the clean and even surface. The muscovite mica is die cut to the sizes offered. The thickness of the mica sheets varies between 0.18 - 0.25mm (0.007 - 0.01\") which yields much thinner, uniform sheets. Cleaving can also be achieved by placing a double coated piece of tape onto the mica surface and gently pulling off the mica layer starting on one edge of the mica. Then place mica with tape side down on to a specimen disc or mount.Ruby muscovite color ranges from almost white through pink to a light ruby and into shades of brownish ruby and brown. It is considered of higher quality (compared to green muscovite) because of hardness and excellent cleavage properties permitting it to be split into the thinnest desired film without the risk of cracking. It is optically flat, resilient and incompressible. While it splits into thin films along its cleavage planes, yet it remains tough and elastic, even at high temperatures.Chemically, mica is a complex hydrous silicate of aluminum, containing potassium, magnesium, iron, sodium fluoride and/or lithium and traces of other elements. It is stable and inert to water, acids (except hydrofluoric and concentrated sulfuric acids), alkalis, conventional solvents and oil.Our mica has minimum inclusions, minimum air and bubbles and is clean. ASTM D-351 describes grading standards for mica.
Mica GradesMica grades from V-1 to V-5 with V-1 being the highest quality. |
| V-1 | Clear, hard, of uniform color, nearly flat, free from stains, foreign inclusions, cracks and other similar defects. |
| V-2 | Clear and slightly stained. May contain slight crystallographic discoloration and very slight air inclusions in one fourth of the usable area. |
| V-3 | Fair stained. Hard, of uniform color, may contain slight waves, slight crystallographic discoloration, and medium air inclusions in not more than one half of the usable area. |
| V-4 | Good stained. Hard, of uniform color, may contain medium waves. Slight crystallographic discoloration and medium air inclusions in not more than two thirds of the usable area. |
| V-5 | Stained A quality. Hard, may contain medium air inclusions, uniformly distributed in the usable area, slight green vegetable stains and medium waviness. |
Highest Grade Mica DisksHighest quality grade V1 mica, 0.21mm (.0085”) thick. Interleaved, in packages of 10.Available in four diameters:10mm (0.39\")12mm (0.47\")15mm (0.59\")20mm (0.79\") | Highest Grade V1 Mica Discs, 10mm | |
| Highest Grade V1 Mica Discs, 12mm | |
| Highest Grade V1 Mica Discs, 15mm | |
| Highest Grade V1 Mica Discs, 20mm | |
Highest Grade Mica Sheets
Highest quality Grade V1.15 to .177mm (.006-.007\") thickSheets interleavedVarious sizes | Highest Grade V1 Mica, 15 x 15mm | |
| Highest Grade V1 Mica, 25 x 25mm (1 x 1\") | |
| Highest Grade V1 Mica, 25 x 75mm (1 x 3\") | |
| Highest Grade V1 Mica, 50 x 75mm (2 x 3\") | |
| Highest Grade V1 Mica, 100 x 75mm (4 x 3\") | |
Hi-Grade Mica
Grade V2 0.23 to 0.3mm (.009 - .012\") thickSheets interleavedVarious sizes | Hi-Grade Mica, Grade V2, 15 x 15mm | |
| Hi-Grade Mica, Grade V2, 25 x 25mm (1 x 1\") | |
| Hi-Grade Mica, Grade V2, 25 x 25mm (1 x 1\") | |
| Hi-Grade Mica, Grade V2, 25 x 75mm (1 x 3\") | |
| Hi-Grade Mica, Grade V2, 50 x 75mm (2 x 3\") | |
PELCO® Mica Sheets, Grade V5
Various sizes available, presenting many fresh, clean surfaces for such EM applications as carbon filming and particle spraying. Thickness, .23mm (.009\"). | PELCO® Mica Sheets, Grade V5, 15 x 15mm | |
| PELCO® Mica Sheets, Grade V5, 25 x 25mm (1 x 1\") | |
| PELCO® Mica Sheets, Grade V5, 10 x 40mm | |
| PELCO® Mica Sheets, Grade V5, 25 x 75mm (1 x 3\"), | |
| PELCO® Mica Sheets, Grade V5, 50 x 75mm (2 x 3\"), | |
Silicon Chip Specimen Supports
Si-chips are opaque, of low electrical resistance and have surface properties equal to glass (including smoothness). They are also good substrates for growing or mounting cells. Si-chips are precleaned before packaging. Also ideal for imaging small particles due to low background signal.Availability: 4\" wafer is precut into 5x7mmm, 5x5mm or 10x10mm chips that can be easily separated in the laboratory. 4\" wafer precut into 5x7mm chips approximately 187 chips/wafer.4\" wafer precut into 5x5mm chips approximately 270 chips/wafer. 4\" wafer precut into 10x10mm chips approximately 55 chips/wafer.Properties:Orientation: <111>Resistance: 1-30 OhmsType: P (Boron) (1 primary flat)No SiO2 top coatingWafer thickness: 18-21 mil (460-530µm)Wafer is polished on one sideBefore dicing they are rinsed in de-ionized water for cleaning | 4\" (10cm) dia., 5x7mm diced Silicon Wafer, 187 chips/wafer, | |
| 4\" (10cm) dia., 5x5mm diced Silicon Wafer, 270 chips/wafer | |
2\", 3\", 4\" and 6\" Silicon WafersThese 2\", 3\", 4\" and 6\" diameter silicon wafers can be used either as a substrate for thin film research or to make small silicon substrates by dicing the wafer into smaller pieces using a scriber and the Wafer Cleaving / Glass Breaking Pliers. The wafer is shipped in a wafer carrier. Properties:Orientation <111> or <100> for 6\" waferResistance: 1-30 OhmsType P: (Boron) (1 primary flat)No SiO2 top coatingWafer thickness: 18-21 mil (460-530µm)Wafer is polished on one side | Ø2\" Silicon Wafer, Type P / <111> | | | Ø3\" Silicon Wafer, Type P / <111> | | | Ø4\" Silicon Wafer, Type P / <111> | | | Ø6\" Silicon Wafer, Type P / <100> | |
