Screen printing apparatus and paste kneading method
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsSeiya Kuroda, Masayuki Mantani
Life of this patent
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Abstract
A screen printing apparatus includes a pair of clampers that clamp a substrate, a mask plate contacted to the substrate, a pair of squeegees provided above the mask plate vertically, and a squeegee controller that selectively controls one of the pair of squeegees to move in the horizontal direction in abutment against the mask plate so that the selected one of the pair of squeegees slides on the mask plate.
Claims18
A screen printing apparatus comprising:
- a pair of clam pers that clamp a substrate from sides of the substrate;
- a mask plate contacted to the substrate which is clamped by the pair of clam pers;
- a pair of squeegees provided above the mask plate in a vertical direction and arranged in a horizontal direction;
- and
- a squeegee controller that selectively controls one of the pair of squeegees to move in the horizontal direction in abutment against the mask plate so that the selected one of the pair of squeegees slides on the mask plate, wherein when paste is kneaded in a kneading area on the mask plate, the squeegee controller performs a paste kneading operation in which only one squeegee of the pair of squeegees is abutted against the mask plate within the kneading area, the paste is to scraped within the kneading area by the one squeegee, and the one squeegee is lifted up, and then only the other squeegee of the pair of squeegees is abutted against the mask plate within the kneading area, the paste is scraped within the kneading area by the other squeegee, and the other squeegee is lifted up.
A paste kneading method performed by a screen printing apparatus in order to knead paste within a kneading area on a mask plate, the screen printing apparatus including a pair of clampers that clamp a substrate from sides of the substrate, the mask plate contacted to the substrate which is clamped by the pair of clampers, and a pair of squeegees provided above the mask plate in a vertical direction and arranged in a horizontal direction, and one of which is selectively controlled to move in the horizontal direction in abutment against the mask plate so that the selected one of the pair of squeegees slides on the mask plate, the method comprising:
- a first step of bringing only one squeegee of the pair of squeegees into abutment against the mask plate within the kneading area;
- a second step of scrapping the paste within the kneading area by the one squeegee after the first step;
- a third step of lifting up the one squeegee after the second step;
- a fourth step of bringing only the other squeegee of the pair of squeegees into abutment against the mask plate within the kneading area after the third step;
- a fifth step of scrapping the paste within the kneading area by the other squeegee after the fourth step;
- and
- a sixth step of lifting up the other squeegee after the fifth step.
Dependencies are inferred from the claim text.