Shopping cart overview
Your Cart is currently empty.

LOCTITE ABLESTIK QMI2569

Harmonization Code : 3506.91.90.99 | 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 ; Adhesives based on polymers of headings 3901 to 3913 or on rubber; Other ; Other

Main features

Void free bondline
Excellent adhesion
Excellent RGA moisture results

Product Description

LOCTITE ABLESTIK QMI 2569 is a wide temperature processing, no-dry, silver glass die attach adhesive for the attachment of integrated circuits in both solder seal and glass seal hermetic packages. The material can allow the simultaneous processing of die attach and leadframe embedding, while producing a void-free bondline for maximum thermal dissipation. Characteristics of the QMI 2569 are excellent adhesion when processed between 380°C to 440°C for small die (.300” x .300”), and between 390°C to 440°C for large die. Excellent RGA moisture results are acquired through the use of lead borate glass. This paste can only be used in hermetic packages. The QMI 2569 also offers improved processability by allowing in-line drying during the firing process on die as large as .800” x .800”. Either multi-needle or starfish can apply the material.

Technical Specifications

General Properties

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	365 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)	20 ppm
Potassium (K+) Potassium (K+) The amount of Potassium (K+) ion extracted from the product in parts per million (ppm)	20 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	35,800 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.	8

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

2,190 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.

250 °C

Thermal Conductivity

Thermal Conductivity
Thermal conductivity describes the ability of a material to conduct heat. It is required by power packages in order to dissipate heat and maintain stable electrical performance.

Thermal conductivity units are [W/(m K)] in the SI system and [Btu/(hr ft °F)] in the Imperial system.

60 W/m.K

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.

16 ppm/°C

Additional Information

Pricing & Availability

Pricing for LOCTITE ABLESTIK QMI2569
Volume Price Breaks can be seen for each product by clicking on its respective link under the DESCRIPTION column and looking to the volume price break table to the right of the product image. Price per unit is reflected in this table and used during checkout. CAPLINQ lists all its prices without taxes, shipping payment charges or discounts. CAPLINQ has entities in Canada and the Netherlands, and if your shipping address is one of these two countries, applicable taxes will be applied. If your shipping address is to the United States, we request your company?s Employer Identification Number (EIN) or Tax Identification Number (TIN). This is a unique 9-digit number assigned by the IRS and is required for all cross-border shipments. Failure to provide this number could result in delays to your order. 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. DON'T LIKE THESE PRICES? Tell us what you will pay for what order quantity. Shipping Charges for LOCTITE ABLESTIK QMI2569 All prices shown are ex-works CAPLINQ, but during the checkout process, you will be given several shipping options including Canada Post, TNT, UPS or the choice of using your own freight forwarder. Depending on your shipping address, the shipping charges will be calculated as follows: Europe, Middle East, Asia and Africa: Shipping from CAPLINQ Netherlands (Amsterdam) Canada, USA, Mexico and South America: Shipping from CAPLINQ Canada (Ottawa) Payment option for LOCTITE ABLESTIK QMI2569 During the checkout process, you will be presented with several payment options including: Credit Card (We accept VISA and Mastercard) Bank Transfer (You will be given the payment instructions at the time of order placement) PayPal (Where you can also pay with American Express Cards) Purchase Order (You must be preapproved first. See our Online Credit Application) Availability for LOCTITE ABLESTIK QMI2569 To the right of the product is a small icon that lets you know the availability and leadtime of the product. This leadtime is the time to ship the product and delivery times vary based on the method of delivery you select at the time you place your order. Contact us if anything is unclear or you need more assistance.

Videos & Other Media

Videos & Other Related Media
Sorry, there are no related videos for LOCTITE ABLESTIK QMI2569 at this time.

Product Reviews

Product Reviews for LOCTITE ABLESTIK QMI2569
Customer Reviews: There are yet no reviews for this product. Please log in to write a review.

View Blogs & Forum

Read and discuss LOCTITE ABLESTIK QMI2569 on CAPLINQ's Blog and Forum
CAPLINQ is different. Unlike other business to business enterprises, we encourage our customers to discuss, critique, and otherwise comment on the products we offer. Get more technical information, read detailed posts, and see what customers have to say about about LOCTITE ABLESTIK QMI2569 on our Corporate Blog and Forum. Read more about LOCTITE ABLESTIK QMI2569 on our Blog. Join the discussion about LOCTITE ABLESTIK QMI2569 on our Forum.