Patent ID: 7048172
Filing Date: 2006-05-23
Classification: B23K,H01L,H05K,Y10T

Abstract:
1. A viscous fluid transfer method of forming a flat viscous fluid transfer surface by a squeegee and immersing a terminal portion of an electronic component in the viscous fluid transfer surface, thereby transferring a viscous fluid to the electronic component, said method comprising the steps of: putting said viscous fluid on a transfer unit having a flat pan surface; stirring said viscous fluid by a plate-shaped stirring squeegee after said viscous fluid is put on said transfer unit; forming a viscous fluid transfer surface by flattening said viscous fluid uniformly after said viscous fluid is stirred by a plate-shaped leveling squeegee, wherein said stirring squeegee is relatively moved with respect to the pan surface in a forward direction during stirring said viscous fluid, and wherein a plate-shaped leveling squeegee is moved relatively with respect to the pan surface in a reverse direction during flattening said viscous fluid; and scraping said viscous fluid toward to a central side in the longitudinal direction of said leveling squeegee by said stirring squeegee when said stirring squeegee is relatively moved with respect to the pan surface in a forward direction again after forming a viscous fluid transfer surface, wherein said viscous fluid overflows from both ends in a longitudinal direction of said leveling squeegee when said leveling squeegee is relatively moved with respect to the pan surface in a reverse direction.