Component Floor Life

The permissible time from opening the moisture barrier bag until the final soldering process that a component can remain outside the moisture barrier bag is a measure of.

Component floor life. The moisture sensitivity level msl indicates the floor life of the component its storage conditions and handling precautions after the original container has been opened. 10 boma painted walls have a life span of 5 years while internachi lists interior paint as having a life span of 10 15 years. Moisture sensitivity level relates to the packaging and handling precautions for some semiconductors. Component shelf life is really an oem specification and i would expect the oem to determine shelf life based on a couple items one a specific characteristic of the component that derogates over time.

4 0 component floor life moisture sensitive components floor life shall follow j std 033b for floor life classification and reflow bake procedures. Floor life the allowable time period between removal of moisture sensitive devices from a moisture barrier bag dry storage or dry bake and the solder reflow process. 5 years floor finishes 30 other sources have more detailed life span estimates based on specific floor finish types which have life spans ranging from 5 100 years. A long pot life or even worse an unlimited pot life is a sure sign of an inferior floor epoxy.

Good epoxy flooring will have less than an hour pot life at 70 degrees. For office buildings refer to boma. Increasingly semiconductors have been manufactured in smaller sizes. Internal plated contacts becoming tarnished or lubricant for moving parts drying out.

At the end of its useful life it is expected to be obsolescent. 30 c 60 rh at all other levels. Each time we put a new desiccant pack and new humidity indicator card in the msd bag and seal it. The msl is an electronic standard for the time period in which a moisture sensitive device can be exposed to ambient room conditions 30 c 85 rh at level 1.

The customer need only be aware of msl 3 devices in regards to floor life. Floor life of msd parts we run small jobs so a reel of msd components could be opened and closed a number of times. It is based on the idea that every asset has a useful life a period of time over which it remains useful and productive. What does pot life mean when using an epoxy floor coating.

Ge energy connections component shelf life storage condition requirements for electronic suppliers uncontrolled when printed ge proprietary. If we total all the times we opened the bag it may exceeds 168 hours.