摘要:
The method is capable of securely mounting an electronic component on a circuit board by applying ultrasonic vibration. The method comprises the step of applying ultrasonic vibrations to the electronic component so as to flip-chip-bond the electronic component to the circuit board having electrodes. Portions of the circuit board, which correspond to peaks of amplitude of vibrations transmitted to the circuit board, are pressed when the ultrasonic vibrations are applied to the electronic component.
摘要:
A method of ultrasonic mounting can increase mounting efficiency by using high-frequency ultrasound and can also mount large semiconductor chips. The method ultrasonically bonds a semiconductor chip 52 to a substrate 50 using an ultrasonic mounting apparatus including a horn 15 that propagates ultrasonic vibration of an ultrasonic vibrator, the horn 15 being made of a ceramic that has a higher vibration propagation speed than metal. The method includes steps of disposing the substrate 50 on a stage 13, disposing the semiconductor chip 52 on the substrate 50, and placing the semiconductor chip 52 in contact with a convex part 15a provided on the horn 15 and applying ultrasonic vibration to bond the semiconductor chip 52 to the substrate 50.
摘要:
The method is capable of securely mounting an electronic component on a circuit board by applying ultrasonic vibration. The method comprises the step of applying ultrasonic vibrations to the electronic component so as to flip-chip-bond the electronic component to the circuit board having electrodes. Portions of the circuit board, which correspond to peaks of amplitude of vibrations transmitted to the circuit board, are pressed when the ultrasonic vibrations are applied to the electronic component.
摘要:
According to an aspect of the invention, an electronic part includes a substrate having a first planar surface, a first bump affixed to the first planar surface of the substrate, a second bump affixed to the first planar surface of the substrate a predetermined distance from the first bump, a MEMS chip including a element, the MEMS chip coupled to the first bump and the second bump, the MEMS chip distanced from the first planar surface, an adhesive region bonding with the first bump, the substrate and the MEMS chip.
摘要:
According to an aspect of the invention, an electronic part includes a substrate having a first planar surface, a first bump affixed to the first planar surface of the substrate, a second bump affixed to the first planar surface of the substrate a predetermined distance from the first bump, a MEMS chip including a element, the MEMS chip coupled to the first bump and the second bump, the MEMS chip distanced from the first planar surface, an adhesive region bonding with the first bump, the substrate and the MEMS chip.
摘要:
A method of assembling a carriage assembly is capable of suppressing deformation of spacer portions when suspensions are attached to carriage arms. The method of assembling a carriage assembly aligns fitting holes provided in front end portions of carriage arms and spacer holes provided in spacer portions of suspensions and places the suspensions onto the carriage arms, and then presses a ball with a diameter equal to or greater than an inner diameter of the spacer holes with a pressure-applying member to pass the ball through the spacer holes, thereby crimping spacer hole edge portions of the spacer portions and attaching the suspensions to the front end portions of the carriage arms. By applying ultrasonic vibration from two axial directions to the pressure-applying member, the pressure-applying member is caused to vibrate on a two-dimensional movement path on a predetermined plane and passes the ball through the spacer holes while causing the ball to rotate.
摘要:
When crimping suspensions to carriage arms using a metal ball by applying ultrasonic vibration to a crimping tool, the suspensions can be crimped to the carriage arms without causing deformation to the suspensions and the like. A method of assembling a carriage assembly aligns attachment holes provided in front ends of carriage arms and crimping portions provided on suspensions to set the suspensions on the carriage arms and then presses a ball through crimping holes provided in the crimping portions while applying ultrasonic vibration to the crimping tool to crimp the suspensions to the carriage arms. When doing so, a ball, such as a ball whose surface has been subjected to a dimpling process, for which a load that acts on the ball when the ball passes through the crimping holes is low compared to a spherical ball is used to crimp the suspensions to the carriage arms.
摘要:
A method of assembling a carriage assembly and an assembling apparatus that uses the same are capable of suppressing fluctuation in the crimped (deformed) states of spacer portions when suspensions are attached to carriage arms. The method of assembling a carriage assembly aligns fitting holes 10a provided in carriage arms 10 with spacer holes 12b of suspensions 12 and then passes a ball 20 with a diameter equal to or greater than an inner diameter of the spacer holes 12b through the spacer holes 12b to crimp edge portions of the spacer holes 12b in spacer portions 12a and thereby attach the suspensions 12 to the carriage arms 10. While the ball 20 is being pressed and sandwiched from both sides of the spacer holes 12b by two pressure-applying members 40a, 40b and ultrasonic vibration is applied to the two pressure-applying members 40a, 40b, the two pressure applying members 40a, 40b are moved so as to pass the ball 20 through the spacer holes 12b.
摘要:
A method of assembling a carriage assembly is disclosed. The method is are capable of suppressing fluctuation in the crimped (deformed) states of spacer portions when suspensions are attached to carriage arms. The method aligns fitting holes 10a provided in carriage arms 10 with spacer holes 12b of suspensions 12. Then the method passes a ball 20 with a diameter equal to or greater than an inner diameter of the spacer holes 12b through the spacer holes 12b to crimp edge portions of the spacer holes 12b in spacer portions 12a and thereby attach the suspensions 12 to the carriage arms 10. While the ball 20 is being pressed and sandwiched from both sides of the spacer holes 12b by two pressure-applying members 40a, 40b an ultrasonic vibration is applied to the two pressure-applying members 40a, 40b, the two pressure applying members 40a, 40b are moved so as to pass the ball 20 through the spacer holes 12b.
摘要:
A method of assembling a carriage assembly is capable of suppressing deformation of spacer portions when suspensions are attached to carriage arms. The method of assembling a carriage assembly aligns fitting holes provided in front end portions of carriage arms and spacer holes provided in spacer portions of suspensions and places the suspensions onto the carriage arms, and then presses a ball with a diameter equal to or greater than an inner diameter of the spacer holes with a pressure-applying member to pass the ball through the spacer holes, thereby crimping spacer hole edge portions of the spacer portions and attaching the suspensions to the front end portions of the carriage arms. By applying ultrasonic vibration from two axial directions to the pressure applying member, the pressure applying member is caused to vibrate on a two dimensional movement path on a predetermined plane and passes the ball through the spacer holes while causing the ball to rotate.