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LOCTITE ABLESTIK QMI3555R

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

Wide processing window
Low temperature profile
Low stress on die

Product Description

LOCTITE® ABLESTIK QMI3555 is formulated using a Polymodal Metal Flake distribution technology which utilizes a combination of specifically selected silver flakes that, in conjunction with a unique glass, maximizes adhesion to gold while simultaneously enhancing rheological properties of the paste. It is a No-Dry paste that possesses rheological properties which optimize dispensability during die attach.

LOCTITE ABLESTIK QMI3555 incorporates a patented silver/vanadium glass at a metal to glass ratio of 6.5:1 by weight. The paste is completely resinless and fires into a film that provides high thermal and electrical conductivity as well as excellent initial adhesion. It is extremely resistant to degradation during temperature cycling from -65°C to + 150°C.

A thin bondline combined with its excellent thermal properties make QMI3555 attractive for use in high power devices. Because of its wide processing range, one common low temperature firing profile can be used for both solder and glass sealed packages with nearly all die sizes.

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 @ 15°C	12 months

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	35,000 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.	10

Thermal Properties

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.

80 W/m.K

Additional Information

Pricing & Availability

Pricing for LOCTITE ABLESTIK QMI3555R
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 QMI3555R 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 QMI3555R 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 QMI3555R 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.

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