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 Phone: +1 (224) 436-0077 
Fax: +1 (630) 621-4198
 sales@UnitedAdhesives.com 

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6-1023 Tianzhu Rd.
Hefei City, China
  Phone: +86 139 5605 4600 
Fax: +86 0551 267 5968
 china@UnitedAdhesives.com 

 

 

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           Epoxy Based Electrically Conductive Adhesives

 

Features

         United Adhesives Inc. makes two categories of Electrically Conductive Adhesives (ECA), silver filled silicones (Silductor series) and silver filled epoxies (Eposolder series), in both one-part and two-part systems. They are either dispensable or screen /stencil printable. The Eposolder series provides superior bonding strength to most common metal/alloy surfaces while maintaining high electrical & thermal conductivity.

Potential Uses

         The typical applications are for mounting of heat sensitive dies or components in sensors, disk drive, flip-chip, die attach assembly or packaging, MEMS, LED Driver IC's, CCD chip attach, wafer lamination, CSP. Epoxy based ECAs provide electrically conductive bonding between components and mounting surfaces, and serve as thermal interface material for conducting heat through heat spreader. They are alternatives for solder replacement, chip bonding, and lead terminations.


Name

Eposolder
6510

Eposolder
6522

Eposolder
6503

Eposolder
6761

Eposolder
6763

Eposolder
6526

Chemical Base

Epoxy  / Ag

Epoxy / Ag

Epoxy  / Ag

Epoxy  / Ag-Cu

Epoxy  / Ag-Cu

Epoxy / Ag-Cu

Features / Advantages

High electrical & thermal conductivity. Strong bonding strength. One component. Strong bonding strength.

Flexible epoxy to reduce thermal stress. High electrical & thermal conductivity.

Snap cure. High electrical & thermal conductivity. Very low out-gassing. Strong bonding strength.

Flexible epoxy to reduce thermal stress. Low cost. High electrical & thermal conductivity.

One part, dispensable and printable. Low cost. Solvent-free. High thermal stability

Printable. Room temp curable after mix. Strong bonding strength. good electrical & thermal conductivity.

Typical Application

For die attach, solder replacement, chip bonding, lead terminations, printed circuit, EMI / RFI shielding.

For die attach, low temp chip bonding, lower stress conducting bonding applications

For die attach, solder replacement, chip bonding, lead terminations, printed circuit, EMI / RFI shielding.

Low stress bonding & conducting in Sensors, Filters, Crystal Oscillators, MEMS, LCD, Driver IC’s, CCD chip attach, etc.

For die attach, chip bonding, lead terminations, printed circuit, EMI / RFI shielding.

For instant repairing. Provide circuit conducting, grounding, and EMI shielding.

Rheology

Dispensable
Printable

Printable

Dispensable and Printable

Dispensable and Printable

Dispensable and Printable

Printable

Part / Component

One

One

One

One

One

Two

Viscosity (25C, cps)

35,000

41,000

65,000

39,000

47,000

120,000

Thixotropic Index
(0.5 /5 rpm)

3.2

3.5

2.6

3.0

3.2

3.0

Density (g/ml)

4.6

3.6

4.3

3.9

3.9

1.8

Work life (hr)

24

24

5 Days

24

24

15 min

Cure Rate

85C 60 min
125C 60 min

80C 3 hrs
125C 20 min

125C 12 min
185C 3 min

125C 30 min

80C 6 hrs
125C 60 min

25C 6 hrs
125C 15 min

Storage

-40 C

-40 C

< 4C

-40 C

-40 C

rmt

Shelf Life (days)

6 month @ -40C

6 month @ -40C

6 month @ 4C

6 month @ -40C

6 month @ -40C

12 month @ 30C

Thermal Stability

-40C to 180C

-55C to 180C

-40C to 180C

-50C to 230C

-40C to 180C

-40C to 150C

Tg

65 C

n.a.

65 C

n.a.

n.a.

n.a.

CTE (ppm/C)

<110 (above Tg)
<40 (below Tg)

< 160

<180 (above Tg)
<40 (below Tg)

< 210

<130

55  (below Tg)

Hardness (ASTM D2240)

Shore D = 78

Shore A = 42

Shore D = 80

Shore A = 52

Shore D = 60

Shore D = 75

Volume Resistivity
(Ohm-cm)

< 2x10-4

< 2x10-4

< 2x10-4

< 1x10-3

< 5x10-3

< 1x10-3

Adhesion
(Al/Al Lap Shear, psi)

> 1200 psi

> 400 psi

> 1100 psi

> 400 psi

> 800 psi

> 2500 psi

Thermal Conductivity (W/mK)

>5

>5

>3

> 4

>4

> 5

 

   
United Adhesives Inc.
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