December, 2017
www.us-
tech.com
New Solder Attach Technologies... Continued from page 55
bility. Small, custom solder attach solutions for direct-attach of components is a great benefit to the medical device market. Stacking assemblies and modules have long
been a mainstay in telecom systems and infra- structure, as well as in compact mobile devices. Solder attach solutions have become a key enabling technology for supporting high-volume production of infrastructure and mobile devices with high-reliability and lower costs. Many display panel manufacturers are look-
ing at alternatives that use solder attach methods to assemble driver arrays, which are then attached to the displays with epoxy. This achieves both high reliability and ease of assembly. Solder attach technology is versatile and can be
combined with custom stamping. This makes the technology an alternative to creating new, custom applications that require joining together of components, while keeping within tight tolerances. By considering the use of solder
attach methods early in the design process, engineers can greatly expand their options for achieving product design and manufacturabili- ty objectives. Solder attach methods can be incorporated directly into the creation of virtually any application- specific components to make them “self-solderable.” This eliminates sec- ondary processes and streamlines assembly, while also improving final product quality.
Sensors and RF Shielding Solder attach technology is
being used in the creation of solder- ready sensors, relays and actuators. Starting from scratch, precise solder elements are incorporated right into the process of stamping and creating the underlying lead frame. Another custom solder attach
application is in self-soldering RF shields. For many of today’s compact designs with high frequency signal-
Starting from scratch,
precise solder elements are incorporated right into the process of stamping and creating the underlying frame.
ing, integrating RF shields with con- ventional soldering has become high- ly problematic. Solder attach enables designers to incorporate the solder directly into virtually any shield design, allowing it to be placed and soldered with standard assembly processes. Medical devices are an impor-
tant arena in which application-spe- cific solder attach is becoming a very valuable tool. The tight space con- straints and specialized alloys used in many medical devices make con- ventional soldering difficult or even impossible. For example, the technol- ogy is enabling solder to be precisely incorporated into flex circuit metal stampings. Another advantage of Solder
Attach technology is the ability to create specialized or fully-custom designs from the ground up. The combination of custom stamping and preformed solder encapsulation tech- niques makes it possible to pre-posi- tion precise volumes of solder and flux virtually anywhere on the stamping. This greatly simplifies the assembly process, eliminating sec- ondary operations and allowing the device to be assembled and reflowed efficiently.
Custom automotive solder attach component.
To be successful with solder attach technology, partner with experts who have experience imple-
Page 57
menting solder attach. Start early in the design process while options for maximizing the benefits of the technology are still open. Carefully consider material, alloy, solder, and flux choices. Use a design for manufacturability approach to maximize yields and efficiency. Automation can be leveraged to ensure the scalability of production capacity. When used correctly, new forms of solder
attach technology can offer many benefits. It can bring the proven advantages of integrating solder into application-specific designs. It eliminates the need for solder paste, solder dipping or the addi- tion of secondary flux. Solder attach offers a high degree of production flexibility to mesh with exist- ing production methods. It can also include a wide range of solder types, melting points and flux choices. Bottom line benefits: simplicity, reliabili- ty, efficiency, and flexibility. Contact: Interplex Holdings Pte., Ltd., 54
Venus Way, Attleboro, MA 02703 % 508-399-6810 E-mail:
mark.bowden@
us.interplex.com Web:
www.interplex.com r
Capacitors for P
apacitors for Power E ectronicstronics er Elecl
IGBT Snubbers RF Mica Capacitors DC Link Capacitors
-High Current, High Voltage Film -High Capacitance Aluminum Electrolytic AC Output Harmonic Filter Capacitors
COutputHarmonic Filter Capacitors
www.cde.com d
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