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The Feinfocus Cougar-SMT with CT can image complex components in 2-D and 3-D for quality assessment and process improvement.
 
Featuring a Feinfocus GUI, it includes a microfocus x-ray tube up to 160 kV, HDX-Ray real-time 16-bit image processing, digital flat panel detector and accelerated CT reconstruction and visualization. Provides feature recognition down to 1 µm, with total magnification up to 10,000X and True X-Ray Intensity (TXI) Control.
 
Users may add features such as BGA and die-attach void calculation modules, a more sophisticated manipulator system and a multifocus x-ray tube up to 160 kV. CT functionality is an available upgrade for existing systems.
 
Features a small footprint (approx. 1 x 1 m), low system weight (approximately 1,450 kg) and convenient front- and side-door service access.
 
 
COMET, comet.ch
LF-4300 is an RoHS-compliant Pb-free solder paste with multi-process capabilities, a single product for no-clean applications that is also water washable. Compatible with Pb-free, SnPb and high-temperature alloys, the versatile and forgiving solder paste can be cleaned using standard aqueous cleaning systems without saponification.

 
Manufactured using a proprietary formula, including synthetic materials for good printing characteristics, lot-to-lot consistency and long stencil life. Is VOC and halide-free, and is classified as REL0. When used as a no-clean with either SnPb and Pb-free alloys, flux residue remains clear and meets S.I.R. requirements per IPC-TM-650.2.6.3.3.

 
Features include:

·        Complies with RoHS directive 2002/95/EC for lead-free

·        Suitable for high temp. alloys up to 300oC

·        No mid-chip beading

·        Low voiding

·        12-hour stencil life

·        24-hour abandonment time

·        Pin Probable for ICT inspection

·        Compatible with AOI inspection

·        Works well in a vapor phase process

 

ALPHA OM-338 PT lead-free no-clean solder paste is said to offer unparalleled pin testability, while allowing high print speeds and delivering excellent throughput and yield.
 
“Lead-free pastes have an inherent difficulty with pin test yields… [but] OM-338 PT has proven to be a very promising innovation,” said Mitch Holtzer, global product manager. “Alpha OM-338 PT is targeted to both EMS and OEM customers using in-line circuit testing. It was developed to reduce the number of false negatives recorded when pin probes are used, resulting in increased throughput and yield.”
 
In addition to excellent pintestability with virtually no residue on pins, it offers high print speeds (up to 150 mm/sec., on 12 mil squares and 10 mil circles), compatibility with both Rheopump and Pro-Flow, electrical reliability (passes IPC, Bellcore and HP requirements), clear, colorless flux residue yielding excellent joint appearance, and low voiding and anti-slumping characteristics.
 
Cookson Electronics, newalphaproducts.com

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