US 5,330,574 A · Electrode forming apparatus

Abstract

An electrode forming apparatus comprises a recovery blade for collecting electrode paste on the bottom surface of a dipping vessel toward a first end of the dipping vessel and a levelling blade for levelling the electrode paste, being collected toward the first end, toward a second end of the dipping vessel for adjusting the same to a constant film thickness. The recovery blade and the levelling blade are supported by a blade support frame, which is horizontally reciprocated with respect to the dipping vessel. The recovery blade is vertically moved by a cylinder, while the vertical position of the levelling blade is finely controlled by a levelling control motor. Thus, the film thickness of the electrode paste can be accurately adjusted with excellent repeatability, thereby carrying out homogeneous electrode application.

Claims14

Dependent claims

An apparatus for forming a layer of electrode paste on a bottom surface of a dipping vessel for applying electrodes onto ends of chip type electronic components, said apparatus comprising:

a frame;
a dipping vessel on the frame;
a recovery blade mounted on the frame for collecting said electrode paste on the bottom surface of said dipping vessel by moving the paste toward a first end of said dipping vessel;
a levelling blade mounted on the frame for levelling said electrode paste collected at said first end of said dipping vessel, by moving the paste toward a second end of said dipping vessel while forming the paste to have a constant thickness over the bottom surface of said dipping vessel;
driving means for relatively reciprocating said recovery blade and said levelling blade with respect to said dipping vessel for collecting and levelling the paste;
first moving means for moving said recovery blade between a position in contact with the bottom surface of said dipping vessel when collecting the paste and a retracted position when not collecting the paste;
and
second moving means for moving said levelling blade between a position spaced from the bottom surface of said dipping vessel by a distance corresponding to said constant thickness when levelling the paste, and a retracted position when not levelling the paste.

5 more elements

An apparatus for forming a layer of electrode paste on a bottom surface of a dipping vessel for applying electrodes onto ends of chip type electronic components, said apparatus comprising:

a blade assembly having a recovery blade for collecting the electrode paste on the bottom surface of a dipping vessel and a levelling blade for levelling the collected paste to a constant thickness over the bottom surface of such dipping vessel;
moving means for relatively moving the recovery blade with respect to be in contact with and along the bottom surface to collect the paste, and away from the bottom surface after collecting the paste;
and for moving the levelling blade to a position separated from the bottom surface by a predetermined gap corresponding to said constant thickness, and of relatively moving the levelling blade with respect to and along the bottom surface, to form the layer of electrode paste, and away from the bottom surface after levelling the paste.

An apparatus for forming a layer of electrode paste on a bottom surface of a dipping vessel for applying electrodes onto ends of chip type electronic components, said apparatus comprising:

a recovery blade for collecting the electrode paste on the bottom surface of a dipping vessel and a levelling blade for levelling the collected paste to a constant thickness over the bottom surface of such dipping vessel;
first vertical moving means for vertically moving the recovery blade to contact the bottom surface to collect the paste, and away from the bottom surface after collection of the paste;
second vertical moving means for vertically moving the levelling blade to a position separated from the bottom surface by a predetermined gap corresponding to the constant thickness of the layer of electrode paste, and away from that position after levelling the paste;
and
driving means for relatively horizontally reciprocating the recovery blade and the levelling blade with respect to such dipping vessel so that the recovery blade collects the electrode paste at a first end of such dipping vessel when the recovery blade is in contact with the bottom surface, and the levelling blade levels the electrode paste toward a second opposite end to form the layer of electrode paste.

2 more elements

Dependencies are inferred from the claim text.

Electrode forming apparatus

Life of this patent

Electrode forming apparatus

Life of this patent

Abstract

Claims14