Abstract:
Embodiments of the invention generally provide apparatus and methods of screen printing a pattern on a substrate. In one embodiment, a patterned layer is printed onto a surface of a substrate along with a plurality of alignment marks. The locations of the alignment marks are measured with respect to a feature of the substrate to determine the actual location of the patterned layer. The actual location is compared with the expected location to determine the positional error of the patterned layer placement on the substrate. This information is used to adjust the placement of a patterned layer onto subsequently processed substrates.
Abstract:
Die Erfindung betrifft eine Drucktischanordnung, bei der ein Drucktisch so ausgebildet ist, dass ein zu bedruckendes Substrat mittels einer Zufuhreinrichtung zuführbar ist, relativ das Substrat gegenüber einer Druckvorlage in der Lage justierbar ist, Druckvorlage und Substrat in der gegenseitig justierten Lage relativ aufeinander zubewegbar sind, ein Druckmedium mit Hilfe der Druckwalze auf das Substrat bringbar ist, Druckvorlage und bedrucktes Substrat wieder relativ voneinander weg bewegbar sind, falls erforderlich das bedruckte Substrat prüfbar ist und das bedruckte Substrat wieder abführbar ist, bei der insbesondere in einem gemeinsamen Rahmen (2) mindestens zwei Drucktische (3, 4) so nebeneinander angeordnet sind, dass entsprechende Substrate (11, 12) parallel zuführbar, bedruckbar und wieder abführbar sind. Vorzugsweise sind bei zumindest zwei benachbarten Drucktischen (3, 4) der Bereich zwischen den beiden Drucktischen (3, 4) frei von Führungs-, Halterungs- und Bewegungselementen, gegebenenfalls auch Prüfelementen, ist, derart dass erforderlichenfalls Substrate unterschiedlicher Breite bearbeitet sind, darunter Breiten, die größer als die sind, die durch die Abmessungen eines einzelnen Drucktisches (3, 4) vorgesehen.
Abstract:
The screen printing apparatus includes two screen printers 11A, 11B each including a substrate introduction portion 12 by which a substrate 4 is introduced from the upstream side of the component mounting line 3, a printing portion 13 which performs a screen printing to the introduced substrate 4, a substrate discharge portion 14 by which the substrate 4 subjected to the screen printing is discharged to the downstream side, and a substrate moving stage 15 which receives the introduced substrate 4 so as to position the substrate 4 with respect to the printing portion 13 and to move the substrate 4 subjected to the screen printing to the substrate discharge portion 14. The two substrate introduction portions 12, the two printing portions 13, and the two substrate discharge portions 14 are arranged symmetrically to each other with respect to a perpendicular symmetrical plane S extending in a transportation direction of the substrate 4 in the component mounting line 3, respectively. Each printing portion 13 is provided at a position further from the perpendicular symmetrical plane S than the substrate discharge portion 14.
Abstract:
A stencil printer (10) includes a frame (12), astencil (18) coupled to the frame, a substrate support (28) coupled to the frame to support a substrate in a print position, and a print head (20), coupled to the frame, to deposit and print viscous material over the stencil. The print head includes a squeegee assembly (36) having at least one squeegee blade (38,40) and a squeegee blade movement mechanism configured to move the squeegee blade from a raised position in which the squeegee blade is spaced from stencil and a lowered position in which the squeegee blade engages and applies a force on the stencil., The print head further has a device to detect a first reference point (A) associated with a first force of the squeegee blade (38,40) against the stencil and a second reference point (B) associated with a second force of the squeegee blade (38,40) against the stencil when moving the squeegee blade to the lowered position in which the squeegee blade engages and applies a force on the stencil.
Abstract:
An optical system for use with printers and the like, printers incorporating such optical systems, methods for printing substrates and for inspection thereof are provided. The optical system may include one or more image capturing devices, and an image processing device for processing images captured by the image capturing devices to provide image data. The optical system is adapted for providing image data corresponding to at least two capture areas of substantially different dimensions on a common focusing plane or on different focusing planes of the optical system.
Abstract:
An apparatus and methods for depositing material on a surface of an electronic substrate are provided and include a squeegee device or system for distributing material to be deposited on the electronic substrate. The squeegee device or system can include a first wiping blade (62) and a second wiping blade (63) spaced from and parallel to the first wiping blade. The first wiping blade and the second wiping blade are disposed at an angle (64) relative to a vertical axis (66,68), the vertical axis being perpendicular to a surface of an electronic substrate, such that when the first and the second wiping blades (62, 63) contact a surface (23) of a stencil (20) to deposit or print the material onto the electronic substrate, the first and the second wiping blades contact the stencil surface at a rake angle relative to a direction in which the squeegee device traverses the stencil surface.
Abstract:
A manufacturing system (10) and method for applying a material (48) to a workpiece (12) comprising a blade unit (20) having a blade element (16) for selectively moving along first (40) and second (22) axes for applying the material (48) to the workpiece (12). A reciprocating motor (42) is coupled to the blade unit (20) for reciprocating the blade element (16) along the first axis (40) concurrent with movement of the blade element (16) along the second axis (22), and a vibration detector (80) is coupled to the blade unit (20) for detecting the vibrational movement of the blade element (16). The vibration detector (80) generates an output signal corresponding to the vibrational movement of the blade element (16). A control unit (44) is coupled to the vibration detector (80) for generating an output signal in response to the vibration detector signal, and a regulating device (46) adjusts a parameter of the reciprocating motor (42) in response to the output signal of the control unit (44).
Abstract:
The present invention concerns an innovative method for the realization of a design 6 in general on a plate glass 1 furnished with a superficial coating, in particular plates for household electrical appliances. In accordance with the method, a first phase of application of a serigraphic silk fabric 4 is included in correspondence of the face 1' of the plate 1 on which to realize the design 6. The serigraphic silk fabric in question includes a plurality of free holes 6 reproducing a certain design 6. Subsequently, the phase of application of a substantially acid substance 10 on the serigraphic silk fabric is included, at least in correspondence of the free holes in such a way that, through the said holes 6, a deposit of the acid substance takes place that makes notches in the treatment of superficial coating of the plate.