Underfills time required

The simple I dispense pattern is widely used for square devices. Multiple applications, however, may be needed followed by a fillet or seal at the other three sides using a fine gauge needle. A limitation of this approach is the time required to underfill large die. For die smaller than 3-mm square, a single pass usually suffices. Yet another option for small die is to apply a single dot at one edge. ... 

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