Apertures and Aperture Cleaning
Self Cleaning Gold Foil Disc Apertures
Advanced techniques of thin metal film application permits the apertures to retain a clean hole edge during prolonged beam exposure. Ultra-thin, half-micron design discourages contaminant accumulation and stabilizes astigmatic conditions to provide longer life. Conventional mechanical cleaning involving costly down-time is no longer necessary. Because the foil is ultra thin, care must be taken when handling the gold foil apertures.
Gold foil aperture tolerances vary as follow:
- Nominal hole size from 1 to 60 micron: +/-1micron
- Nominal hole size 70 micron and up: +/-10%
Platinum Disc, Drilled Apertures
Platinum apertures are easily cleaned by either an aperture flamer or over a bunsen burner in the open air. We maintain a wide variety of Platinum Drilled Apertures in stock with different configurations suiting all of your needs.
Platinum Apertures size tolerances vary as follow:
- Nominal hole diameter: +/- 1 micron
- Disc diameter: +/- 10 microns
- Disc thickness: +/- 10 microns
Ordering information: Gold (Au); Platinum (Pt); Molydenum Mo
Hole Sizes not listed are available upon special request.
2mm O.D. x 0.24mm thick: Phillips, Cameca
| Gold | Platinum | Molybdenum | |||||||
| 10µm | - | - | 40010-Pt | 162.00 | Cart | 40010-Mo | 225.00 | Cart | |
| 20µm | - | - | 40020-Pt | 79.00 | Cart | 40020-Mo | 82.00 | Cart | |
| 30 µm | - | - | 40030-Pt | 73.00 | Cart | 40030-Mo | 78.00 | Cart | |
| 50µm | - | - | 40050-Pt | 70.00 | Cart | 40050-Mo | 71.00 | Cart | |
| 100µm | - | - | 40100-Pt | 68.00 | Cart | 40100-Mo | 69.00 | Cart | |
| 150µm | - | - | 40150-Pt | 72.00 | Cart | 40150-Mo | 68.00 | Cart | |
2mm O.D. x 0.53mm thick: Cambridge, Siemens, JEOL, Cameca
| Gold | Platinum | Molybdenum | |||||||
| 5µm | 42005-Au | 295.00 | Cart | 42005-Pt | 270.00 | Cart | 42005-Mo | 225.00 | Cart |
| 10µm | 42010-Au | 234.00 | Cart | 42010-Pt | 162.00 | Cart | 42010-Mo | 225.00 | Cart |
| 15µm | 42015-Au | 234.00 | Cart | 42015-Pt | 83.00 | Cart | 42015-Mo | 83.00 | Cart |
| 20µm | 42020-Au | 234.00 | Cart | 42020-Pt | 85.00 | Cart | 42020-Mo | 83.00 | Cart |
| 30µm | 42030-Au | 234.00 | Cart | 42030-Pt | 79.00 | Cart | 42030-Mo | 79.00 | Cart |
| 40µm | 42040-Au | 234.00 | Cart | 42040-Pt | 71.00 | Cart | 42040-Mo | 79.00 | Cart |
| 50µm | 42050-Au | 234.00 | Cart | 42050-Pt | 70.00 | Cart | 42050-Mo | 71.00 | Cart |
| 70µm | 42070-Au | 234.00 | Cart | 42070-Pt | 70.00 | Cart | 42070-Mo | 71.00 | Cart |
| 100µm | 42100-Au | 234.00 | Cart | 42100-Pt | 69.00 | Cart | 42100-Mo | 69.00 | Cart |
3mm O.D. x 0.12mm thick: Zeiss, Nanolab, Novascan
| Gold | Platinum | Molybdenum | |||||||
| 10µm | 43010-Au | 270.00 | Cart | 43010-Pt | 138.00 | Cart | 43010-Mo | 225.00 | Cart |
| 20µm | 43020-Au | 162.00 | Cart | 43020-Pt | 89.00 | Cart | 43020-Mo | 90.00 | Cart |
| 30µm | 43030-Au | 153.00 | Cart | 43030-Pt | 85.00 | Cart | 43030-Mo | 85.00 | Cart |
| 50µm | 43050-Au | 112.00 | Cart | 43050-Pt | 80.00 | Cart | 43050-Mo | 82.00 | Cart |
| 60µm | 43060-Au | 112.00 | Cart | 43060-Pt | 80.00 | Cart | 43060-Mo | 82.00 | Cart |
| 70µm | 43070-Au | 112.00 | Cart | 43070-Pt | 80.00 | Cart | 43070-Mo | 82.00 | Cart |
| 100µm | 43100-Au | 112.00 | Cart | 43100-Pt | 80.00 | Cart | 43100-Mo | 80.00 | Cart |
| 150µm | 43150-Au | 112.00 | Cart | 43150-Pt | 80.00 | Cart | 43150-Mo | 80.00 | Cart |
| 200µm | 43200-Au | 112.00 | Cart | 43200-Pt | 80.00 | Cart | 43200-Mo | 80.00 | Cart |
| 300µm | 43300-Au | 112.00 | Cart | 43300-Pt | 80.00 | Cart | 43300-Mo | 80.00 | Cart |
3mm O.D. x 0.24mm thick: Philips, ARM, AEI, Cambridge
| Gold | Platinum | Molybdenum | |||||||
| 5µm | 44005-Au | 296.00 | Cart | 44005-Pt | 295.00 | Cart | 44005-Mo | 270.00 | Cart |
| 10µm | 44010-Au | 270.00 | Cart | 44010-Pt | 230.00 | Cart | 44010-Mo | 225.00 | Cart |
| 15µm | 44015-Au | 325.00 | Cart | 44015-Pt | 90.00 | Cart | 44015-Mo | 85.00 | Cart |
| 20µm | 44020-Au | 281.00 | Cart | 44020-Pt | 80.00 | Cart | 44020-Mo | 85.00 | Cart |
| 25µm | 44025-Au | 120.00 | Cart | 44025-Pt | 77.00 | Cart | 44025-Mo | 82.00 | Cart |
| 30µm | 44030-Au | 118.00 | Cart | 44030-Pt | 78.00 | Cart | 44030-Mo | 82.00 | Cart |
| 40µm | 44040-Au | 109.00 | Cart | 44040-Pt | 73.00 | Cart | 44040-Mo | 77.00 | Cart |
| 50µm | 44050-Au | 106.00 | Cart | 44050-Pt | 70.00 | Cart | 44050-Mo | 74.00 | Cart |
| 60µm | 44060-Au | 106.00 | Cart | 44060-Pt | 70.00 | Cart | 44060-Mo | 72.00 | Cart |
| 70µm | 44070-Au | 106.00 | Cart | 44070-Pt | 70.00 | Cart | 44070-Mo | 72.00 | Cart |
| 100µm | 44100-Au | 106.00 | Cart | 44100-Pt | 69.00 | Cart | 44100-Mo | 70.00 | Cart |
| 150µm | 44150-Au | 106.00 | Cart | 44150-Pt | 69.00 | Cart | 44150-Mo | 70.00 | Cart |
| 200µm | 44200-Au | 106.00 | Cart | 44200-Pt | 69.00 | Cart | 44200-Mo | 70.00 | Cart |
| 300µm | 44300-Au | 106.00 | Cart | 44300-Pt | 69.00 | Cart | 44300-Mo | 70.00 | Cart |
| 400µm | 44400-Au | 106.00 | Cart | 44400-Pt | 69.00 | Cart | 44400-Mo | 70.00 | Cart |
4mm O.D. x 0.165mm thick: ISI
| Gold | Platinum | Molybdenum | |||||||
| 10µm | - | - | 45010-Pt | 139.00 | Cart | 45010-Mo | 225.00 | Cart | |
| 20µm | - | - | 45020-Pt | 105.00 | Cart | 45020-Mo | 112.00 | Cart | |
| 30µm | - | - | 45030-Pt | 90.00 | Cart | 45030-Mo | 87.00 | Cart | |
| 50µm | - | - | 45050-Pt | 82.00 | Cart | 45050-Mo | 85.00 | Cart | |
| 70µm | - | - | 45070-Pt | 82.00 | Cart | 45070-Mo | 85.00 | Cart | |
| 100µm | - | - | 45100-Pt | 72.00 | Cart | 45100-Mo | 73.00 | Cart | |
6mm O.D. x .24mm thick: JEOL
| Gold | Platinum | Molybdenum | |||||||
| 10µm | - | - | 46010-Pt | 295.00 | Cart | 46010-Mo | 225.00 | Cart | |
| 20µm | - | - | 46020-Pt | 165.00 | Cart | 46020-Mo | 150.00 | Cart | |
| 30µm | - | - | 46030-Pt | 140.00 | Cart | 46030-Mo | 135.00 | Cart | |
| 50µm | - | - | 46050-Pt | 130.00 | Cart | 46050-Mo | 135.00 | Cart | |
| 100µm | - | - | 46100-Pt | 130.00 | Cart | 46100-Mo | 135.00 | Cart | |
6.35mm O.D. x 0.06mm thick: ETEC
| Gold | Platinum | Molybdenum | |||||||
| 30µm | - | - | 47030-Pt | 92.00 | Cart | 47030-Mo | 225.00 | Cart | |
| 50µm | - | - | 47050-Pt | 92.00 | Cart | 47050-Mo | 135.00 | Cart | |
| 100µm | - | - | 47100-Pt | 92.00 | Cart | 47100-Mo | 108.00 | Cart | |
| 150µm | - | - | 47150-Pt | 92.00 | Cart | 47150-Mo | 108.00 | Cart | |
| 200µm | - | - | 47200-Pt | 92.00 | Cart | 47200-Mo | 108.00 | Cart | |
6.35mm O.D. x 0.14mm thick: ETEC Spray Aperture
| Gold | Platinum | Molybdenum | |||||||
| 500µm - | - | 47500-PtS | 92.00 | Cart | 47500-MoS | 120.00 | Cart | ||
| 1000µm - | - | 471000-PtS | 92.00 | Cart | 471000-MoS | 120.00 | Cart | ||
12.7mm O.D. x 0.25mm thick: Cambridge, Camscan Spray Aperture
| Gold | Platinum | Molybdenum | |||||||
| 500µm - | - | 48500-PtS | 90.00 | Cart | 48500-MoS | 120.00 | Cart | ||
| 1000µm - | - | 481000-PtS | 90.00 | Cart | 481000-MoS | 120.00 | Cart | ||
Wehnelt Apertures
Made from 0.004" tantalum foil. Replaceable tantalum apertures for some microscopes (Amray and Philips). They improve the performance of the electron gun.
| 49020-Ta | Wehnelt Aperture, 200µm Hole | each | 150.00 | Add to Cart |
| 49030-Ta | Wehnelt Aperture, 300µm Hole | each | 150.00 | Add to Cart |
| 49040-Ta | Wehnelt Aperture, 400µm Hole | each | 150.00 | Add to Cart |
| 49050-Ta | Wehnelt Aperture, 500µm Hole | each | 150.00 | Add to Cart |
| 49075-Ta | Wehnelt Aperture, 750µm Hole | each | 150.00 | Add to Cart |
| 49100-Ta | Wehnelt Aperture, 1000µm Hole | each | 150.00 | Add to Cart |
Strip Aperture
All the following multihole strip aperture are made from Platinum-Iridium (95:5) and are standard in our line.
HITACHI Strip Apertures
Measures: 41.0 x 4.0 x 0.10mm – 4 holes
| 49211-01 | Hole Sizes: 10-10-20-70µm | each | 700.00 | Add to Cart |
| 49211-02 | Hole Sizes: 30-20-20-70µm | each | 700.00 | Add to Cart |
| 49211-03 | Hole Sizes: 70-70-50-50µm | each | 675.00 | Add to Cart |
| 49211-04 | Hole Sizes: 30-50-70-100µm | each | 675.00 | Add to Cart |
| 49211-05 | Hole Sizes: 10-50-100-200µm | each | 675.00 | Add to Cart |
Measures: 45.0 x 4.0 x 0.10mm – 4 holes
| 49212-01 | Hole Sizes: 20-20-30-30µm | each | 650.00 | Add to Cart |
| 49212-02 | Hole Sizes: 30-70-100-200µm | each | 650.00 | Add to Cart |
| 49212-03 | Hole Sizes: 10-30-50-70µm | each | 650.00 | Add to Cart |
JEOL Strip Apertures
Measures: 9.0 x 2.35 x 0.10mm – 3 holes
| 49210-01 | Holes Sizes: 10-30-80µm | each | 575.00 | Add to Cart |
| 49210-02 | Hole Sizes: 10-20-100µm | each | 575.00 | Add to Cart |
| 49210-03 | Hole Sizes: 30-50-150µm | each | 575.00 | Add to Cart |
| 49210-04 | Hole Sizes: 100-200-300µm | each | 575.00 | Add to Cart |
Other Strip Apertures
Measures 10.0 x 2.5 x 0.10mm – 3 holes
| 49213-01 | Hole Sizes: 20-60-100µm | each | 575.00 | Add to Cart |
Measures 31.0 x 5.0 x 0.10mm – 4 holes
| 49214-01 | Hole Sizes: 20-30-30-50µm | each | 625.00 | Add to Cart |
Note: These are our standard strip apertures. For all other strip apertures or any custom made ones please inquire.
Metal Foils
For aperture cleaning, vacuum evaporation.
| 73820 | Molybdenum foil, 0.002” thick, (0.05mm); 6x6”(15.2 x 15.2 cm) | each | 82.00 | Add to Cart |
| 73822 | Tantalum Foil, 0.003” thick, (0.075mm);6x6" | each | 235.00 | Add to Cart |
Aperture Flamer
For holding aperture discs or strips while flaming. Small discs can be flamed in the 3/16" diameter cup made from 6 mil platinum foil with a 1/32" diameter hole in the bottom to induce a good flow of air. The cup is attached by a 30 mil platinum wire to a heat resistant handle. The aperture can be hung from the hook for flaming.
For holding ¼" to ½" diameter aperture discs while flaming. The flat pan is made from 6 mil platinum foil with a 1/32" diameter hole in the bottom to induce adequate air flow. A 30 mil platinum wire attaches the pan to a heat resistant handle.
| 40001 | Aperture Flamer, discs or strips | each | 480.00 | Add to Cart |
| 40002 | Aperture Flamer, ¼" to ½" discs | each | 525.00 | Add to Cart |
Metal Boats
For disc aperture cleaning, vacuum evaporation.
Thickness: 0.05mm (0.002") Overall length: 75mm (3")
Trough Measures: 12mm(1.2")long x 5mm (3/16")wide x 1mm deep
| 73810 | Molybdenum Boat | 5/pk | 29.50 | Add to Cart |
| 73812 | Platinum Boat | 1/pk | 149.00 | Add to Cart |
| 73814 | Tantalum Boat | 5/pk | 48.00 | Add to Cart |
Molybdenum Boat for Strip Apertures
Thickness: 0.05mm (0.002") Overall Length: 75mm
Trough Measures: 50mm (L) x 5mm (W) x 1mm (D)
| 73818 | Long Molybdenum Boat | 5/pk | 29.00 | Add to Cart |
Tungsten Boat
Thickness: 0.05mm (0.002") Overall Length: 32mm (¼")
Trough measures: 12mm (½") long x 5mm (3/16") wide x 1mm deep
| 73816 | Tungsten Boat B1 | 5/pk | 42.00 | Add to Cart |
