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LOCTITE ECCOBOND NCP5209

Harmonization Code : 3506.10.00.00 |   Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg
Main features
  • Non conductive
  • Excellent protection of electrical joints
  • Small assembly gaps and tight pitches

Product Description

LOCTITE® ECCOBOND NCP 5209 is a non-conductive paste (NCP) underfill designed to facilitate next-generation fine-pitch copper pillar and copper OSP flip-chip devices. Overcoming the voiding and protection drawbacks of conventional capillary underfills, LOCTITE ECCOBOND NCP 5209 leverages thermal compression (TC) bonding to offer robust, complete bump protection of flip-chip devices, with bump pitches less than 100 µm and gaps less than 40 µm for a high-reliability result.

LOCTITE® ECCOBOND® NCP 5209 is a fast curing hybrid adhesive has improved fluxing and stability at 70°C up to 60 minutes and has been proven a high volume runner with long staging time (>60 min 70°C). With a Typical TCB cure within 2-4 seconds @ 240-280°C, High Tg of 180°C and low ionics (<5ppm) it achieves a longer stage life and better flowability than its direct rival, LOCTITE ECCOBOND FP 5201.

Its fast cure resin, improved solderability and good reliability make it ideal for high volume production and make it the #1 Non Conductive Paste Underfill of choice.

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Product Family
NCP5209  
10cc Syringe
5 cc

Catalog Product

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Technical Specifications

General Properties
Specific Gravity
Specific Gravity
Specific gravity (SG) is the ratio of the density of a substance to the density of a reference substance; equivalently, it is the ratio of the mass of a substance to the mass of a reference substance for the same given volume.

For liquids, the reference substance is almost always water (1), while for gases, it is air (1.18) at room temperature. Specific gravity is unitless.
1.5
Shelf Life
Shelf Life
Shelf life is the amount of time after manufacturing that a product is guaranteed to retain its properties.

It differs vastly per product and it is based on temperature and storage conditions.

The properties can be guaranteed for the temperature and time range indicated on the TDS since those are the ones tested to be the best for the product.
Shelf Life @ -40°C 274 days
Chemical Properties
Extractable Ionic Content, after 20 hours
Chloride (Cl-)
Chloride (Cl-)
The amount of Chloride (Cl-) ion extracted from the product in parts per million (ppm)
10 ppm
Sodium (Na+)
Sodium (Na+)
The amount of Sodium (Na+) ion extracted from the product in parts per million (ppm)
10 ppm
Potassium (K+)
Potassium (K+)
The amount of Potassium (K+) ion extracted from the product in parts per million (ppm)
10 ppm
Mechanical Properties
Viscosity
Viscosity
Viscosity is a measurement of a fluid’s resistance to flow.

Viscosity is commonly measured in centiPoise (cP). One cP is defined as
the viscosity of water and all other viscosities are derived from this base. MPa is another common unit with a 1:1 conversion to cP.

A product like honey would have a much higher viscosity -around 10,000 cPs-
compared to water. As a result, honey would flow much slower out of a tipped glass than
water would.

The viscosity of a material can be decreased with an increase in temperature in
order to better suit an application
Viscosity 12,500 MPa.s
Thixotropic index
Thixotropic index
Thixotropic Index is a ratio of a material s viscosity at two different speeds in Ambient temperature, generally different by a factor of ten.

A thixotropic material s viscosity will decrease as agitation or pressure is increased. It indicates the capability of a material to hold its shape. Mayonnaise is a great example of this. It holds its shape very well, but when a shear stress is applied, the material easily spreads.

It helps in choosing a material in accordance to the application, dispense method and viscosity of a material.
2.2
Tensile Modulus
Tensile Modulus
Tensile modulus is a mechanical property that measures the stiffness of an elastic material. It is the slope of stress / strain curve of a material under direct tensile loading.

It can be used to predict the elongation or elastic deformation of an object as long as the stress is less than the tensile strength of the material. Elastic deformation is caused by stretching the bonds between atoms and the deformation can be reversed when the load is removed.

Tensile modulus is affected by temperature and is an important engineering attribute since we generally want to keep elastic deformation as small as possible.
Tensile Modulus @25°C 7,300 N/mm2
Thermal Properties
Glass Transition Temperature (Tg)
Glass Transition Temperature (Tg)
The glass transition temperature for organic adhesives is a temperature region where the polymers change from glassy and brittle to soft and rubbery. Increasing the temperature further continues the softening process as the viscosity drops too. Temperatures between the glass transition temperature and below the decomposition point of the adhesive are the best region for bonding.

The glass-transition temperature Tg of a material characterizes the range of temperatures over which this glass transition occurs.
145 °C
Coefficient of Thermal Expansion (CTE)
Coefficient of Thermal Expansion (CTE)
CTE (Coefficient of thermal expansion) is a material property that is indicative of the extent to which a material expands with a change in temperature. This can be a change in length, area or volume, depending on the material.

Knowing the CTE of the layers is helpful in analyzing stresses that might occur when a
system consists of an adhesive plus some other solid component.
Coefficient of Thermal Expansion (CTE), α1
Coefficient of Thermal Expansion (CTE), α1
CTE α1 (alpha 1) is the slope of the Coefficient of thermal expansion in a temperature range below the Glass transition temperature (Tg).

It explains how much a material will expand until it reaches Tg.
28 ppm/°C
Coefficient of Thermal Expansion (CTE), α2
Coefficient of Thermal Expansion (CTE), α2
CTE α2 (alpha 2) is the slope of the Coefficient of thermal expansion in a temperature range above the Glass transition temperature (Tg).

It explains the extent to which a material will expand after it passes Tg.
80 ppm/°C

Additional Information

Pricing & Availability

Pricing for LOCTITE ECCOBOND NCP5209

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If your shipping address is within the EU, but outside the Netherlands, then we are required to request your company's Value Added Tax (VAT, BTW, MwSt) number to be able to ship the goods tax-free. For all other countries, no taxes are levied on your orders.

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