Title :
Modeling of time-pressure fluid dispensing processes
Author :
Chen, X.B. ; Shoenau, G. ; Zhang, W.J.
Author_Institution :
Dept. of Mech. Eng., Saskatchewan Univ., Saskatoon, Sask., Canada
fDate :
10/1/2000 12:00:00 AM
Abstract :
The process of time-pressure fluid dispensing has been widely employed in the semiconductor industry, where the fluid is applied to boards or substrates. In such a process, the flow rate of fluid dispensed and the shape of fluid formed on the board are the two most critical performance indexes, yet extremely difficult to represent because of their complex behavior. This paper presents the development of a model for the time-pressure fluid dispensing process, by which the flow rate and shape can be established. Experiments have been performed to validate the model developed
Keywords :
Navier-Stokes equations; encapsulation; flow simulation; laminar flow; non-Newtonian flow; non-Newtonian fluids; rheology; semiconductor process modelling; surface mount technology; viscosity; wetting; Navier-Stokes equations; SMT; critical performance indices; encapsulation; equilibrium shape; flow rate; formed fluid shape; laminar flow; non-Newtonian fluid; process model; rheology; semiconductor industry; spreading; time-pressure fluid dispensing; viscosity; wetting; Encapsulation; Fasteners; Fluid dynamics; Fluid flow control; Needles; Performance analysis; Pistons; Rheology; Shape; Surface-mount technology;
Journal_Title :
Electronics Packaging Manufacturing, IEEE Transactions on
DOI :
10.1109/6104.895075
