Matsushita Electric Industrial Co., Ltd.

Nobuyuki Kakishima

Akihiko Wachi

Seishiro Yanachi

Ken Takahashi

Takao Naito

Naoichi Chikahisa

Nobuyasu Nagafuku

Yousuke Nagasawa

Hitoshi Nakahira

Takayuki Mibuchi

Masaya Matsumoto

A screen printing method and apparatus for printing a circuit pattern corresponding to that of a stencil ( ), onto a print-object article ( ) placed on an ascendable/descendable positioning stage ( ), through moving a squeegee ( ) horizontally while the squeegee is pushed in on the stencil so that print paste ( ) is printed to the article via the stencil. The squeegee is lifted to an extent of a push-in stroke, to which the squeegee has been pushed in on the stencil, and thereafter the article is separated away from the stencil by moving the stage downward. The board is classified into first and second areas ( ) where values of opening sizes of the stencil along a squeegee moving direction are smaller than and not smaller than a threshold, and a speed of the squeegee at the first area is made slower than that at the second area. Upon an occurrence of print standby time during a printing operation, the print standby time is measured, and at a resumption of printing with the print standby canceled, the paste placed on the stencil during the standby time is screen-printed, by moving the squeegee at an adjusted print speed lower than the reference print speed based on a relationship between the print standby time and a print time due to the adjusted print speed after the resumption of printing.

Screen printing method and screen printing apparatus

An adhesive applying apparatus having an adhesive applying nozzle ( ), an elevation drive unit (B) for vertically moving the adhesive applying nozzle, a purging station ( ) provided with a purging tape ( ), a unit ( ) for supporting a circuit board ( ) and an X-Y direction drive unit ( ) which moves the adhesive applying nozzle so as to position the adhesive applying nozzle in a specified position in a horizontal direction of the circuit board and the purging tape. The elevation drive unit is constructed so as to be able to selectively set the lowermost end position of the adhesive applying nozzle. Also, a control means (D) is provided for controlling the elevation drive unit with a command in order to set the lowermost end position of the adhesive applying nozzle, located in a position above the purging station, to a specified position.

Adhesive applying apparatus

A screen printing method and apparatus for printing a circuit pattern corresponding to that of a stencil (,), onto a print-object article (,) placed on an ascendable/descendable positioning stage (,), through moving a squeegee (,) horizontally while the squeegee is pushed in on the stencil so that print paste (,) is printed to the article via the stencil. The squeegee is lifted to an extent of a push-in stroke, to which the squeegee has been pushed in on the stencil, and thereafter the article is separated away from the stencil by moving the stage downward. The board is classified into first and second areas (,) where values of opening sizes of the stencil along a squeegee moving direction are smaller than and not smaller than a threshold, and a speed of the squeegee at the first area is made slower than that at the second area. Upon an occurrence of print standby time during a printing operation, the print standby time is measured, and at a resumption of printing with the print standby canceled, the paste placed on the stencil during the standby time is screen-printed, by moving the squeegee at an adjusted print speed lower than the reference print speed based on a relationship between the print standby time and a print time due to the adjusted print speed after the resumption of printing.

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Kofu, Japan

Nobuyuki Kakishima