Patent ID: 6675704
Filing Date: 2004-01-13
Classification: B05C,B41F,B41P,H05K

Abstract:
A solder paste stenciling apparatus comprising:a supporting member; a stencil retained on the supporting member and having multiple stencil openings defined therein; at least one vibrator for vibrating the stencil, whereby in operation, a substrate is engaged to a bottom surface of the stencil and solder paste is applied onto a top surface of the stencil so that when the stencil and the substrate are slowly separated, the solder paste is deposited onto the substrate via the stencil openings while the at least one vibrator vibrates to minimize adhering of the solder paste in the stencil openings and, wherein the at least one vibrator includes at least one magnetic assembly, a second substrate is mounted around the stencil and at least one set of coils is mounted on the second substrate so that when the coils are electrified, a temporary magnetic field is created and interacts with the magnetic assembly to vibrate the stencil.