Capillary Guide Device Ultrasonic Drive Wire Bonding
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Solution Overview
Problem
In manufacturing factories producing electronic machines, the increasing number of production units leads to a contradictory relationship between production volume and maintenance workload, particularly due to the need for manual capillary replacement in wire bonding apparatuses, which hinders efficient operation.
Innovation Solution
A capillary guide device and wire bonding apparatus that utilize a guide body and drive portion with ultrasonic wave generation and frictional resistance to automatically position and replace capillaries, ensuring reliable capillary replacement without manual intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual capillary replacement is performed in wire bonding apparatus, then positioning precision can be maintained, but maintenance workload increases and productivity decreases
Solution Approach 1:
The guide body is designed to automatically guide the capillary into the holding hole through its own structure without requiring manual positioning operations. The guide surface and tapered surface work together to self-align and position the capillary, enabling automatic replacement while maintaining precision
Solution Approach 2:
The guide body acts as an intermediary component between the capillary supply and the bonding tool holding hole. It mediates the positioning process by providing a guide surface and tapered surface that automatically align the capillary, eliminating the need for manual intervention
2Productivity
If automatic capillary replacement is implemented, then maintenance workload is reduced and productivity increases, but positioning reliability may deteriorate
Solution Approach 1:
The invention replaces manual mechanical positioning operations with an automatic guiding mechanism. The guide body with its specific geometric surfaces automatically positions the capillary through contact guidance, substituting human skill-based positioning with a reliable mechanical guidance system
Solution Approach 2:
The guide body incorporates a tapered surface with a specific angle range (5-15 degrees) that changes the geometric parameters of the guidance interface. This tapered geometry transforms the positioning process by gradually guiding the capillary into proper alignment, ensuring reliable positioning through controlled geometric parameters
3Stability of the object's composition
If the guide body presses the capillary to maintain position, then positioning stability improves, but the capillary may be damaged or misaligned
Solution Approach 1:
The guide body is designed to be movable rather than fixed, allowing it to dynamically adjust its position based on capillary insertion. The guide body can move in the direction of capillary insertion, creating a dynamic interaction that maintains contact and guidance without applying excessive static pressing forces that could damage the capillary
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables reliable and efficient automatic capillary replacement, reducing maintenance workload and improving production efficiency by maintaining precise positioning and alignment during capillary replacement processes.
Implementation Method 1
an ultrasonic wave generation body fixed to an end of the drive shaft and supplying an ultrasonic wave to the drive shaft
Implementation Method 2
a drive shaft extending in the second direction and exerting a frictional resistance force with the moving body
Implementation Method 3
a vibration generation portion which is attached to the moving body and which supplies a vibration along a third direction intersecting each of the first direction and the second direction to the guide body portion via the moving body
Data Source
AI summary
A capillary guide device (40) includes: a guide body portion (41) capable of being in contact with a capillary (8) held in a hole (7h); and a drive portion (42) which arranges the guide body portion (41) at a position capable of being in contact with the capillary (8) by moving the guide body portion (41) along an X-axis direction. The drive portion (42) includes: a table (46) connected to the guide body portion (41); a drive shaft (47b) extending in the X-axis direction and exhibiting a frictional resistance force with the table (46); and an ultrasonic element (47a) fixed to an end of the drive shaft (47b) and supplying an ultrasonic wave to the drive shaft (47b).