Important Notice: Our web hosting provider recently started charging us for additional visits, which was unexpected. In response, we're seeking donations. Depending on the situation, we may explore different monetization options for our Community and Expert Contributors. It's crucial to provide more returns for their expertise and offer more Expert Validated Answers or AI Validated Answers. Learn more about our hosting issue here.

What are some curing process parameters that can affect material properties of snap cured products?

April 26, 2017affect cured curing material parameters process products properties snap

0

10 Posted

What are some curing process parameters that can affect material properties of snap cured products?

1 Answer

0

10 Posted

Factors that can lead to variability in cured material properties for snap cure products include the contact mode, number of zones or heaters, gas flow rate and temperature (nitrogen is typically used), zone settings, and actual adhesive temperature versus set temperature. Contact can be either in the on or off mode. In the “on” mode, the substrate makes contact with the heaters, whereas in the “off” mode, no direct contact between the substrate and heaters is made. Typically curing is done in an in-line process. More zones allow for gradual changes in temperature. The first zone is usually set high to get the package to temperature as quick as possible; the last zone is set relatively high (close to wire bond temperature) to minimize outgassing during subsequent heating.