SPF1 datasheet(3/5 Pages) VISHAY

3 / 5 page

SPF1

www.vishay.com

Vishay Electro-Films

Revision: 18-Feb-2021

Document Number: 61105

For technical questions, contact: efi@vishay.com

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

VISUAL INSPECTION

VEFI uses internal visual inspection criteria as shown in the table below for metal non-patterned substrates. For any plates

smaller than 1.000" x 1.000" or where plate size is not available, metal burrs will be acceptable along part edges where plates

are sawn to size.

Notes

• NIF = not inspected for

(1) Exclusion area for 1" x 1" and greater plates: Front and Rear: 100 mils (2.54 mm) from substrate edge

(2) A-face 100 % inspection method: 3x to 8x magnification. Higher magnification may be used for defect verification

(3) B-face 100 % inspection method: Unaided eye. Higher magnification may be used for defect verification

(4) Scratch or probe mark exposing underlying material that is > 200 mils long

(5) Contamination: Not removable by distilled water or common solvents

SURFACE PERFECTION INSPECTION CRITERIA (1)

SCHEMATIC

ILLUSTRATION

DEFECT TYPE

DEFECT SIZE

FRONT (2)

BACK (3)

NODULES

BUMPS

> 10 mil dia. (>0.254 mm)

0.25/sq"

5 mil to 10 mil dia. (0.127 mm to 0.254 mm)

1/sq"

2/sq"

3 mil to 5 mil dia. (0.076 mm to 0.127 mm)

3/sq"

6/sq"

2 mil to 3 mil dia. (0.05 mm to 0.076 mm)

3/sq"

6/sq"

< 2 mil dia. (< 0.05 mm)

NIF

METALIZATION

VOIDS

PINHOLES

> 2 mil dia. (> 0.05 mm)

None

1 mil to 2 mil dia. (0.0254 mm to 0.05 mm)

5/sq"

10/sq"

< 1 mil high (< 0.0254 mm)

NIF

CRATERS

DEPRESSIONS

(hole into

ceramic)

> 10 mil dia. (> 0.254 mm)

None

5 mil to 10 mil dia. (0.127 mm to 0.254 mm)

1/sq"

3/sq"

2 mil to 5 mil dia. (0.05 mm to 0.127 mm)

4/sq"

1 mil to 2 mil dia. (0.0254 mm to 0.05 mm)

15/sq"

< 1 mil dia. (0.0254 mm)

NIF

SCRATCHES (4)

(excluding

surface

abrasions)

> 1/2 mil wide (> 0.0127 mm)

1/sq"

NIF

< 1/2 mil wide (< 0.0127 mm)

NIF

BLISTERS

> 10 mil dia. (> 0.254 mm)

None

5 mil to 10 mil dia. (0.127 mm to 0.254 mm)

1/sq"

2 mil to 5 mil dia. (0.05 mm to 0.127 mm)

2/sq"

1 mil to 2 mil dia. (0.0254 mm to 0.05 mm)

4/sq"

1/2 mil to 1 mil dia. (0.0127 mm to 0.0254 mm)

6/sq"

1/4 mil to 1/2 mil dia. (0.006 mm to 0.0127 mm)

16/sq"

< 1/4 mil dia. (< 0.006 mm)

NIF

STAINS-SPOTS (5)

> 4 mil. (> 0.1 mm)

None

2 mil to 4 mil (0.05 mm to 0.1 mm)

1/sq"

2/sq"

1 mil to 2 mil (0.0254 mm to 0.05 mm)

2/sq"

4/sq"

< 1 mil (< 0.0254 mm)

3/sq"

5/sq"

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