Loctite Chipbonder now compatible with non-contact dispensing technology

As a leader in development of high-performance adhesives, Henkel expanses its portfolio of surface-mount adhesives (SMA) with the company’s new product Loctite 3621. This adhesive has been validated for use with non-contact dispensing technologies, often referred to as jetting. This capability makes the SMA even more ideal for high-volume production environments and enables higher throughput as well as more uniform dot dimensions.

Higher yields at faster production rates are often the metrics of operational efficiency. The majority of SMAs are needle dispensed which, although adequate for many applications, does have limitations in terms of speed, as well as dot shape and size. Loctite 3621’s unique rheology makes it well-suited for non-contact dispensing processes, which helps alleviate some of the drawbacks with traditional needle dispensing. “Though Loctite 3621 can be utilized in either traditional needle dispensing or non-contact dispensing systems, customers are increasingly migrating to higher throughput options,” notes Tom Adcock, Henkel Electronic Materials Global Product Manager for Assembly Adhesives. “The speed and dot consistency available with Loctite 3621 allows higher yields.”

Accuracy and efficiency at large quantities

Using the Loctite chipbonder, non-contact dispense speed is nearly four times faster as compared to needle dispense techniques. With a small dot size (350µ/0.014” and larger), dots per hour (DPH) of up to 40,000 can be achieved with non-contact dispensing as compared to an average of 10,000 DPH with alternative methods.

In addition to its sheer speed advantage, the non-contact dispensing SMA also provides for more uniform dot dimensions and volume repeatability. Needle dispense techniques are often prone to tailing or stringing, which can result in contamination of the solder pads and, ultimately, a poor interconnect. The non-contact dispensed Loctite 3621 eliminates this concern, as it there is no tailing or stringing, dot dimensions are more spherical and dot to dot consistency is far better as compared to alternative deposition methods.

Innovation by Henkel

Other notable advantages of the latest Loctite chipbonder include the material’s lead-free wave compatibility, excellent green (wet) strength, fast cure capability of 120 seconds at 150°C and long shelf life of one month at room temperature and ten months under refrigerated storage conditions. “Consistent with Henkel’s innovation philosophy, Loctite 3621 delivers high performance in a supremely adaptable and cost-effective material system,” concludes Adcock. “With this material, speed and strength are not mutually exclusive.”

Comments

Post a Comment

Popular posts from this blog

What is Class I Division 2?

Image
A Class I Division 2 is a location: (1) In which volatile flammable gases, flammable liquid-produced vapors, or combustible liquid-produced vapors are handled, processed, or used, but in which the liquids, vapors, or gases will normally be confined within closed containers or closed systems from which they can escape only in case of accidental rupture or breakdown of such containers or systems or in case of abnormal operation of equipment, or (2) In which ignitable concentrations of flammable gases, flammable liquid-produced vapors, or combustible liquid-produced vapors are normally prevented by positive mechanical ventilation, and which might become hazardous through failure or abnormal operation of the ventilating equipment. Class I Division 2 Classification Class I Division 2 refers to the ANSI/ISA 12.12.01 standard. This standard was previously UL1604 until UL recommended the newer ANSI/ISA standard be used and that all hazardous location products be certified under this standa
Read more

FUSE SIZING CONSIDERATIONS FOR HIGHER EFFICIENCY MOTORS

Image
When selecting the proper fuse for short circuit protection in motor starting applications, it is important to not only ensure that the fuse will not nuisance open during motor start up times, but also that the fuse will coordinate as required with overload relays. When sizing fuses between 125% and 150% of the motor nameplate current, several advantages, including ease of coordination with an overload device, a smaller disconnect, and increased short circuit protection from a lower fuse rating, can be achieved. However, if sizing at this level prevents the motor from starting, it may then be necessary to increase the fuse ampere rating and it then becomes important to know the NEC sizing limitations. As of June 1, 2016, the US Department of Energy has mandated that newly manufactured electric motors will need to meet NEMA Premium® efficiency standards. As motor efficiencies increase, motor locked rotor currents can also be expected to increase. In addition to this, with across-the-lin
Read more

7/8 16UN Connectors that Provide 600 Volts and 15 Amps

TURCK announces new A-Size 3 and 4-pin 7/8 16UN powerfast™ connectors that provide up to 600 Volts and 15 Amps of power. These IP67 rated connectors provide a modular wiring system designed to handle high current applications for machine power distribution, while providing resistance to vibration commonly associated with conveyors, motors and material handling applications. The cordsets are available with a tray rated, exposed run PVC flexlife ® cable, with or without STOOW rating, and 14 AWG wires that allow you to replace hard wiring with a robust, quick disconnect system that saves the time and money spent installing a conduit system. The A-Size powerfast line offers male and female, straight connectors, standard and custom lengths, and pigtails or extensions. To make the system complete, fully encapsulated mating receptacles, with 1/2”-14 NPT mounting threads are available.
Read more