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Ribbon and Foil

Home » Products » Thermal Interface Materials » Ribbon and Foil

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Ribbon and Foil

High quality Solder Ribbon and Foil manufactured by Indium Corporation is available in many standard alloys and sizes. Material can also be custom made to your unique material and dimensional requirements.

Solder Ribbon is supplied in continuous lengths and is packaged on spools. Solder Foil is supplied in sheet form.

Ribbon Dimensions

Whether you are looking for large quantities of Solder Ribbon in specific widths and thicknesses for automatic die bonding, or a few feet to do testing, Indium Corporation can accommodate your needs.

Our capabilities allow us to manufacture widths as small as .020" (.5mm) and up to 3" (76mm). Thicknesses range from .001" (.025mm) up to as thick as your application requires. All dimensions are dependent on the properties of the metals involved.

We can work with you on your specific dimensional requirements. Our typical tolerances are:

Width
Up to .099" (2.5mm) +/-.010" (.254mm)
.100" to .999" (2.54mm to 25.37mm) +/-.025" (.635mm)
Over 1.00" (25.4mm) +/-.040" (1.01mm)
Thickness
Up to .001" (.025mm) ±.0002" (.005mm)
.001" (.025mm) to .002" (.050mm) ±.0003 (.0076mm)
>.002" (.050mm) to .010" (.254mm) ±.0005" (.0127mm)
>.010" (.254mm) to .020" (.508mm) ±.0010" (.0254mm)
> .020" (.508mm) to .050" (1.27mm) ±.0025" (.0635mm)
>.050" (1.27mm) ±5%

Shelf Life

The shelf life of solder preforms is dependent on the alloy composition. Pb-free alloys, and alloys with lead content of less than 70%, have a shelf life of one year from the date of manufacture (DOM). Alloys with lead content >70% have a shelf life of six months from the DOM.

Foil Dimensions

For applications requiring material wider than 3", we make solder foil sheets in sizes up to 144 square inches. We also can custom-cut sheets in larger sizes or special shapes.

Standard tolerances on foil dimensions are +/-.062" (1.57mm) on the width and the length and +/- .001" (.025mm) on the thickness.

Available Materials

Whether you require pure metal such as indium, tin, gold, lead, etc. or an alloy, we can accomodate your needs. Indium Corporation has over 200 standard pure metals and alloys available, or we can design an alloy just for you. In addition, our standard alloy list includes a large selection of lead-free alloys.

Several of our more popular alloys are listed below. If you don’t see what you need, try our Solder Alloy Selector Guide to see what alloys will suit your needs.

Liquidus
(°C/°F)
Solidus
(°C/°F)
Indalloy®
Number
Comp-
osition
Plastic
Range
(°C/°F)
Mass
Density
(gm/
cm3)
Electrical
Cond.
(% of Cu)
Thermal
Cond.
W/cm°C
@ 85°C
Thermal
Coef.
of
Expan-
sion
µ in/in°C
@ 20°C
Tensile
Strength
(PSI)
Bond
Holding
Strength
(Shear)
(PSI)
118/244 118/244 1E 52In
48Sn
Eutectic 7.30 11.70 0.34 20.0 1720 1630
138/281 138/281 281 58Bi
42Sn
Eutectic 8.56 4.5 0.19 15.0 8000 500
143/290 143/290 290 97In
3Ag
Eutectic 7.38 23.00 0.73 22.0 800 -
154/309 149/300 2 80In
15Pb
5Ag
5/9 7.85 13.00 0.43 28.0 2550 2150
157/315 157/315 4 100In Melting
Point
7.31 24.00 0.86 29.0 273 890
167/333 154/309 9 70Sn
18Pb
12In
13/24 7.79 12.20 0.45 24.0 5320 4190
175/347 165/329 204 70In
30Pb
10/18 8.19 8.80 0.38 28.0 3450 -
179/354 179/354 SN62 62Sn
36Pb
2Ag
Eutectic 8.41 11.90 0.50 27.0 7000 7540
181/358 173/343 205 60In
40Pb
8/15 8.52 7.00 0.29 27.0 4150 -
183/361 183/361 SN63 63Sn
37Pb
Eutectic 8.40 11.50 0.50 25.0 7500 6200
210/410 184/363 7 50In
50Pb
26/47 8.86 6.00 0.22 27.0 4670 2680
221/430 221/430 121 96.5Sn
3.5Ag
Eutectic 7.36 16.00 0.33 30.2 5620 -
232/450 232/450 128 100Sn Melting
Point
7.28 15.60 0.73 24.0 1900 -
260/500 240/464 10 75Pb
25In
20/36 9.97 4.60 0.18 26.0 5450 3520
280/536 280/536 182 80Au
20Sn
Eutectic 14.51 - 0.57 16.0 40000 40000
356/673 356/673 183 88Au
12Ge
Eutectic 14.67 - 0.44 13.0 26825 26825
1064/
1948
1064/
1948
200 100Au Melting
Point
19.30 73.4 3.18 14.0 18000-
20000
 

Storage

Store Solder Ribbon and Foil in the original container, closed securely, in 55%RH or less and at temperatures less than 22°C. It can also be stored in an inert atmosphere, such as a nitrogen dry box.

Packaging

We have developed standard packaging for various alloys and ribbon widths. However, if you have specialized needs such as spool size, quantity per spool, or other requirements, we can meet your unique specifications.

Each order can be shipped with a Certificate of Analysis which includes information on metallic impurities. We can also provide a Certificate of Conformance when Solder Ribbon and Foil is made to customer specifications.

Related Markets and Applications

  • Engineered Solder and Alloys
  • Thermal Management

Top Ribbon and Foil Technical Documents

  • Solder Ribbon and Foil (US Letter)

    Product Data Sheet

  • Solder Ribbon and Foil (A4)

    Product Data Sheet

Ribbon and Foil Technical Documents

Whitepapers

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Presentations

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Application Notes

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Product Data Sheets

Solder Ribbon and Foil (US Letter)
Solder Ribbon and Foil (A4)

Safety Data Sheets

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Ribbon Solder Blog Posts

Solder Preforms - Now More Than Ever

16 Mar 2018 by Carol Gowans [view bio]

Solder preforms come in a variety of shapes, sizes and materials and can be the perfect solution to your unique application.

Read More

SMTA Pan Pacific: Electronics for Harsh Environments - "The Next Bog Thing in Electronics"

28 Feb 2018 by Dr. Ron Lasky [view bio]

Automotive harsh environments may be the next “big thing” in electronics.

Read More

Join Me at SMTA Pan Pacific February 5-8

31 Jan 2018 by Dr. Ron Lasky [view bio]

Folks, I am giving a paper, chairing a session and hosting a panel at SMTA Pan Pacific on Februrary 6, 2018 at the Hapuna Beach Prince Resort in Hawaii. p sty...

Read More

View All Blog Posts

For comments or questions about the content on this page, please contact:

Tim Jensen
Product Manager for Engineered Solder Materials
tjensen@indium.com

From One Engineer to Another®

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unless specifically stated otherwise.

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