Abstract: An apparatus for organic layer deposition is provided that can improve precision of a gap between a substrate and a mask by correcting a position of a mask stage having a mask mounted thereon based on a substrate shape, and that can reduce a measurement error of a mask surface by pre-measuring a position of a mask and determining an initial position of the mask based on the measured position. The apparatus includes a shape measuring sensor, a substrate carrier, a deposition material discharge source, a mask including a plurality of pattern slits, a camera measuring an alignment error between the substrate and the mask, a distance measuring sensor measuring an alignment error between the substrate and the mask, and a mask stage controlling a position of the mask.

Abstract: A substrate aligning unit includes a first driving roll, a second driving roll, a web guider, an encoder roll, and a controller. The first driving roll transfers a substrate in a first direction. The second driving roll is disposed spaced apart from the first driving roll in the first direction and transfers the substrate in the first direction. The web guider controls a position of the substrate in a second direction substantially perpendicular to the first direction. The encoder roll senses the position of the substrate to generate a sensing signal. The controller controls the first driving roll, the second driving roll, and the web guider based on the sensing signal.

Abstract: Flip chip packaging methods, and flux head manufacturing methods used in the flip chip packaging methods may be provided. In particular, a flip chip packaging method including printing flux on a pad of a printed circuit board (PCB), mounting the die in a flip chip manner on the PCB such that a bump of the die faces the pad of the PCB, and bonding the bump of the die to the pad of the PCB using the flux may be provided.

Abstract: A roll-to-roll printing system includes driven rolls to apply a feeding force to a flexible substrate so that the flexible substrate is fed from an unwinder to a rewinder, nip rolls respectively disposed above two opposite end portions of each of the driven rolls to pressurize two opposite side portions of the flexible substrate, nip roll driving motors connected to the nip rolls to rotate the nip rolls, and a control unit to receive information regarding change of torque values of the nip roll driving motors and control tension of the flexible substrate based on the information.

Abstract: Flip chip packaging methods, and flux head manufacturing methods used in the flip chip packaging methods may be provided. In particular, a flip chip packaging method including printing flux on a pad of a printed circuit board (PCB), mounting the die in a flip chip manner on the PCB such that a bump of the die faces the pad of the PCB, and bonding the bump of the die to the pad of the PCB using the flux may be provided.

Abstract: A substrate aligning unit includes a first driving roll, a second driving roll, a web guider, an encoder roll, and a controller. The first driving roll transfers a substrate in a first direction. The second driving roll is disposed spaced apart from the first driving roll in the first direction and transfers the substrate in the first direction. The web guider controls a position of the substrate in a second direction substantially perpendicular to the first direction. The encoder roll senses the position of the substrate to generate a sensing signal. The controller controls the first driving roll, the second driving roll, and the web guider based on the sensing signal.

Abstract: A roll-to-roll printing system includes driven rolls to apply a feeding force to a flexible substrate so that the flexible substrate is fed from an unwinder to a rewinder, nip rolls respectively disposed above two opposite end portions of each of the driven rolls to pressurize two opposite side portions of the flexible substrate, nip roll driving motors connected to the nip rolls to rotate the nip rolls, and a control unit to receive information regarding change of torque values of the nip roll driving motors and control tension of the flexible substrate based on the information.