MAT-VAC Standard Tolerances
| 1. Dimensional: |
Pure metal and metal alloys
Thickness:
Length, width, diameter:
Flatness:
|
±0.005"
+0.002/-0.000"
within 0.012" |
All other targets
Thickness
Length, width, diameter
Flatness
|
±10% total thickness
(±0.015" minimum)
≤3": ±0.020"
>3": ±0.050"
within 0.012" |
| 2. Weight: |
Standard powders
Evaporation materials
Precious metals |
±3% total weight
+1%/0% total weight of +1 unit/-0 unit
(shots, slugs, flakes, random pieces)
prices by actual weight to 0.1 gram |
| 3. Compositional: |
|
|
best efforts by % weight of material used |
| 4. Purity: |
| Purity (%) |
Nominal ppm |
Maximum ppm |
| Note: Metallic elements only |
99.0 |
10,000 |
15,000 |
|
99.5 |
5,000 |
7,500 |
|
99.8 |
2,000 |
3,000 |
|
99.9 |
1,000 |
1,500 |
|
99.95 |
500 |
750 |
|
99.97 |
300 |
450 |
|
99.98 |
200 |
300 |
|
99.99 |
100 |
200 |
|
99.995 |
50 |
100 |
|
99.998 |
20 |
40 |
|
99.999 |
10 |
20 |
|
99.9995 |
5 |
10 |
|
99.9999 |
1 |
2 |
|
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| 5. Bonding |
Solder protrusions:
Solder voids:
Bond centering: |
None
<3/16" inward
<0.015" difference |
| 6. Visual: |
Cracks
Pits and/or pullouts:
Chips:
Inclusions:
Surface finish:
Striations & sinter lines
(hot pressed materials):
Discolorations: |
None
<1/16": 1 per 4 square inches
depth: <25% target thickness
<1/4" any direction, <1 per inch
<1/64": <1 per 4 square inches
none, unless otherwise stated
<1/16" wide
No discoloration caused by foreign substrates |
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