Medical devices has high reliability requirement because of it’s use as a life-saving tool. They are also relative expensive, so making sure they don’t stand idle or optimizing the life-time of the equipment, demands that the electronic assemblies are set up for the task. INVENTEC has several solder solutions with can greatly improve the reliability of the electronic used in medical devices.

Low void soldering solutions for better heat dissipation

Medical devices like MRI scanners, create quite some heat during operations. Although a cooling system is in place, making sure that the electronics are optimized to dissipate effectively the heat will extend the life-time of the device. Voids in the solder joint reduces the thermal dissipation and hence the reliability of the assembly. Using a paste especially developed to minimize the amount and size of voids under specific sensitive components is recommended and will improve the overall reliability.

Alternative solder alloys for a better thermal cycling capabilities

Electronic assemblies which go daily through a thermal cycling process, exposing the electronics to substantial differences in temperature will put stress on the solder joints due to the expansion and contraction of the alloy. This will create over time cracks or worse breaks off the solder joint. By using an alloy that has better thermal cycling capabilities, you can enhance the lifetime of these medical devices.



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The idea behind No-clean soldering is to avoid an additional cleaning step in your overall process. For certain critical applications however, there is no room for failure and removal of any contaminations left on the PCB is required. This is especially true for the automotive, Aerospace and Medical industry, where the expected life-time of the electronics are many years and where some electronic devices are critical for health & safety.

It is common knowledge that assemblies exposed to higher temperatures are more prone to electrochemical migration and leakage current. This makes cleaning of PCB’s exposed to this kind of environment a valuable choice. Also when applying a protective coating it is also advised to clean prior to the coating process in order to maximize the coating adhesion.

INVENTEC has developed a dedicated range of defluxing agents suited to you desired process. Designed to cater high volume assemblies with a fast and effective cleaning and with high regards to their environmental impact.

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In order to extend the life time of your electronic assembly and protect it against harsh environments they operate in, coating is a valuable option. Also they can provide additional mechanical strength to the assembly by absorbing vibrations.

INVENTEC offers several Conformal Coatings & Ultra-thin coatings. Ultra-thin coatings offers a more simple and cost advantage process, while traditional conformal coatings provide a more rigid protection. They both can be applied by selective spray or by dipping.

Although heat curing of conformal coatings is still very popular, we believe in the future of UV curing. Especially by using UV LED instead of the traditional mercury UV lamps, which is a more stable, cost-efficient and environmental processes.

When applying a protective coating it is also advised to clean prior to the coating process in order to maximize the coating adhesion. With INVENTEC you have a partner which can offer you soldering, cleaning and coating solutions. Designed to be compatible with each other to minimize the risk of compatibility issues.

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