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Ensinger PEI

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Cookson Group STAYCHIP® 3083 Low Stress Underfill with Enhanced JEDEC Performance  (discontinued **)
Categories: Polymer; Adhesive; Thermoset

Material Notes: STAYCHIP™ 3083 is specially formulated to minimize warpage and thermal stress within the die and at the underfill-die interface, which otherwise could initiate defects such as die cracking, fillet cracking and delamination. The low CTE and high strength & toughness of STAYCHIP™ 3083 provide excellent solder-joint protection during thermal cycling, while its superior adhesion to common solder-mask and die passivation surfaces (even after exposure to elevated heat, pressure, and humidity), ensure exceptional JEDEC performance. The fast flow characteristics are designed for penetration of gaps below 1mil.

Features:

  • Low Stress & Warpage
  • Passes JEDEC L3/ 3 x 260°C on a variety of die (up to 20 mm x 20 mm) and substrates
  • Low CTE for Excellent Reliability in Thermal Cycling
  • Exceptional Adhesion (even after exposure to high humidity, pressure, and temperature)
  • Fast, Efficient Flow Properties
  • Small particle size filler for use on fine pitch array packages

Information provided by Cookson Electronics

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Physical PropertiesOriginal ValueComments
Specific Gravity 2.03 g/ccASTM D 792-00
Filler Content 65 %
Moisture Absorption at Equilibrium <= 1.0 %24 hour boil; ASTM D5229/D 5229M-92 (1998) e1. D 570-98
Particle Size <= 11 µm
Brookfield Viscosity 30000 cPBrookfield #51 at 10 RPM; ASTM D2196-99
Storage Temperature <= -40.0 °C
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore D >= 90ASTM D 2240-03
Fracture Toughness 2.20 MPa-m½ASTM D5045-99
Adhesive Bond Strength 3.00 MPaShear strength to polyimide passivated Die, 75 micron gap, at 200°C; DIN EN 60749-20
 55.0 MPaShear strength to polyimide passivated Die, 75 micron gap, at 25°C; DIN EN 60749-19
 
Electrical PropertiesOriginal ValueComments
Dielectric Constant 3.4
@Frequency 1000 - 100000 Hz
Dissipation Factor 0.0020
@Frequency 1000 Hz
 0.0030
@Frequency 10000 Hz
 0.0080
@Frequency 100000 Hz
 
Thermal PropertiesOriginal ValueComments
CTE, linear 35.0 µm/m-°C
@Temperature 20.0 °C
Alpha 1
 133 µm/m-°C
@Temperature 20.0 °C
Alpha 2
Glass Transition Temp, Tg 87.0 °CBy DSC; ASTM D3418-99
Flash Point >= 200 °CASTM D 93-02
 
Processing PropertiesOriginal ValueComments
Pot Life 1080 min
@Temperature 23.0 °C
Time to double viscosity; ISO 10364:1993
Shelf Life 6.00 Month
@Temperature -40.0 °C
 
Descriptive Properties
AppearanceOff-white
Chemical TypeEpoxy/Anhydride-phenol
Extractable Ionic Content, Chloride (Cl)<10 ppm
Extractable Ionic Content, Potassium (K)<2 ppm
Extractable Ionic Content, Sodium (Na)<2 ppm
Storage Modulus6.8 GPaASTM D5023-01

**
Materials flagged as discontinued () are no longer part of the manufacturer’s standard product line according to our latest information. These materials may be available by special order, in distribution inventory, or reinstated as an active product. Data sheets from materials that are no longer available remain in MatWeb to assist users in finding replacement materials.

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PPLASK081 / 56371

Proto3000 – 3D Engineering Solutions

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