Abstract: A method of estimating a virtual contour of an insulating material is disclosed. The method includes the following steps: obtaining a first and a second images at a pair of diagonal locations of the insulating material respectively; determining a first and a second corner locations from the first and the second images respectively; selecting a first set of longitudinal end-point positions and a first set of transverse end-point positions within a range between a first specific distance and a second specific distance from the first corner location; selecting a second set of longitudinal end-point positions and a second set of transverse end-point positions within a range between the first specific distance and the second specific distance from the second corner location; and determining a first transverse axis direction, a first longitudinal axis direction, a second transverse axis direction and a second longitudinal axis direction based on these positions.

Abstract: An apparatus for manufacturing a printed circuit board having a substrate with an upper and a lower surfaces is disclosed. The apparatus is configured to implement a stacking operation disposing a first insulating material and a second insulating material on the upper and the lower surfaces of the substrate respectively. The apparatus includes a stacking operation table with a first and a second sides, a first measuring table and a first transporting device. The first measuring table is disposed adjacent to the first side of the stacking operation table, and has a first and a second image sensing elements disposed at a pair of diagonal corners. The first transporting device is movably disposed on a location higher than the stacking operation table and the first measuring table to transport the first and the second insulating materials to the first measuring table and then to the stacking operation table sequentially.

Abstract: A method of estimating a virtual contour of an insulating material is disclosed. The method includes the following steps: obtaining a first and a second images at a pair of diagonal locations of the insulating material respectively; determining a first and a second corner locations from the first and the second images respectively; selecting a first set of longitudinal end-point positions and a first set of transverse end-point positions within a range between a first specific distance and a second specific distance from the first corner location; selecting a second set of longitudinal end-point positions and a second set of transverse end-point positions within a range between the first specific distance and the second specific distance from the second corner location; and determining a first transverse axis direction, a first longitudinal axis direction, a second transverse axis direction and a second longitudinal axis direction based on these positions.

Abstract: An apparatus for manufacturing a printed circuit board having a substrate with an upper and a lower surfaces is disclosed. The apparatus is configured to implement a stacking operation disposing a first insulating material and a second insulating material on the upper and the lower surfaces of the substrate respectively. The apparatus includes a stacking operation table with a first and a second sides, a first measuring table and a first transporting device. The first measuring table is disposed adjacent to the first side of the stacking operation table, and has a first and a second image sensing elements disposed at a pair of diagonal corners. The first transporting device is movably disposed on a location higher than the stacking operation table and the first measuring table to transport the first and the second insulating materials to the first measuring table and then to the stacking operation table sequentially.

Abstract: A fixing structure for fixing a reel is disclosed. The fixing structure includes a shaft having a first end having a first plurality of protrusions, and a second end having a second plurality of protrusions, wherein each of the first plurality of protrusions and one of its adjacent protrusions have a first recess therebetween, and each of the second plurality of protrusions and one of its adjacent protrusions have a second recess therebetween; and a supporting device, including a first supporting portion supporting the first end, and having a first protruding portion abutting the first recess; and a second supporting portion supporting the second end, and having a second protruding portion abutting the second recess.

Abstract: A fixing structure for fixing a reel is disclosed. The fixing structure includes a shaft having a first end having a first plurality of protrusions, and a second end having a second plurality of protrusions, wherein each of the first plurality of protrusions and one of its adjacent protrusions have a first recess therebetween, and each of the second plurality of protrusions and one of its adjacent protrusions have a second recess therebetween; and a supporting device, including a first supporting portion supporting the first end, and having a first protruding portion abutting the first recess; and a second supporting portion supporting the second end, and having a second protruding portion abutting the second recess.