The ECA launched a digital library (available at ec-central.org) that contains more than 300 technical papers taken from proceedings of recent CARTS and ECTC conferences.
It enables visitors to search for individual conference papers by event name, title and keyword. Papers can be purchased as PDFs and downloaded for $10 (ECA members) or $20 (non-members). The library is soon expected to double in size and include papers from additional CARTS and ECTC events, the annual relay and switch forum (IRSTC), and the wire and cable symposium (IWCS).
The Electronic Components, Assemblies & Materials Association (ECA), ec-central.org
Both materials were tested before and after reflowing various PCBs. In all cases, print remained clear with no visible effects.
The polyimide label materials coated with a permanent pressure-sensitive acrylic adhesive and a high opacity, medium gloss white topcoat are designed for thermal transfer printing. Barcode labels made from the material reportedly demonstrate excellent performance in lead-free wave solder environments, which range from 260º to 290ºC.
Designed for barcode or alphanumeric identification of PCBs or related electronic components. Can withstand mixed circuit board processes on top or bottom side of the board. Said to have excellent resistance to harsh fluxes, cleaning agents, saponifiers and wave solder environments.
Polyonics, www.polyonics.com
Manufactured from high-temperature plastic Polyphenylene Sulfide (PPS). Has 285°C melt temperature, ideal for lead-free processes which may have a peak re-flow temperature of 260°C.
Available in straight PCB, right angle PCB, panel or cable mountings.
Anderson Power Products, www.andersonpower.com
Kit includes “how to” slides, a large selection of different trace widths and thicknesses and the tools required to make the repairs. Offer a variety of tools to reduce the amount of time spent trimming circuit frames.
Business Electronics Soldering Technologies (BEST), www.solder.net
RoHStat procducts, including containers, mats, cords, wrist straps and heel grounders, are recommended for use in lead-free assembly/production areas. Contain no lead, carbon, cadmium, chromium, bromine, mercury or vinyl plasticizers, meets RoHS and Class Zero U.S. and European standards.
Static Solutions, staticsolutions.com
"Mass imaging is significantly more controllable and repeatable than traditional dispensing when depositing TIM," says Richard Heimsch, president. "Additionally, DEK's process makes it easier to verify uniform spreading and absence of voids before the package lid is assembled."
During the TIM process, die assembled onto substrates enter a flexible printing system that combines three processes - passive attach, TIM and lid sealing - into a single platform. The single printing system allows customers to re-deploy equipment between processes to meet changing manufacturing requirements and allows single-platform operator training.
Compared to traditional, serial dispensing, the parallel mass imaging process is said to increase true throughput and deliver greater control over the volume of material deposited. This technique also allows the shape of the TIM deposit to be more accurately controlled. Because the process does not require the TIM to be spread via lid placement, defects such as material voids or incomplete spreading are reportedly eliminated.
DEK, dek.com
