Elastic Component Pressing for Head-Stack Assembly Interconnection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing manufacturing methods for head-stack assemblies in hard-disk drives face challenges in achieving secure and precise interconnection of connector tabs and circuit boards, particularly due to complex apparatus configurations and the need for accurate positioning of microscopic components, which limits their applicability and increases manufacturing costs.
Innovation Solution
A method involving a simple apparatus and process where an elastic component, such as a U-shaped leaf spring, is used to press connection pads on connector tabs against the circuit board, allowing for secure metal-joining through heat application, thereby simplifying the interconnection process and increasing manufacturing yield.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If complex apparatus configurations are used for interconnection of connector tabs and circuit boards, then manufacturing precision and reliability of interconnection is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The elastic component automatically adjusts and maintains optimal pressing force on the connection pad during the heating process, eliminating the need for complex external positioning and pressing apparatus. The elastic component self-regulates based on the assembly state, achieving both precision and simplicity.
Solution Approach 2:
The elastic component utilizes elastic deformation to change its physical state between compressed and relaxed conditions, enabling it to provide consistent pressing force throughout the heating process without requiring complex mechanical adjustment mechanisms.
2Reliability
If accurate positioning of microscopic components is performed, then interconnection reliability is improved, but manufacturing time and process complexity increase
Solution Approach 1:
The elastic component is pre-configured with appropriate elasticity and geometry to automatically achieve optimal positioning and pressing force during assembly, eliminating the need for time-consuming post-assembly adjustments or complex positioning procedures.
Solution Approach 2:
The elastic component self-adjusts to maintain optimal contact between the connection pad and circuit board during heating, providing reliable positioning without requiring additional manual intervention or complex automated positioning systems.
3Ease of manufacture
If simple apparatus is used for interconnection process, then ease of manufacture is improved, but interconnection reliability may deteriorate
Solution Approach 1:
The elastic component automatically maintains optimal pressing force and positioning during the heating process, ensuring reliable interconnection without requiring complex external apparatus. The elastic component self-regulates based on assembly conditions, providing both simplicity and reliability.
Solution Approach 2:
The elastic component utilizes controlled elastic deformation to provide consistent pressing force throughout the heating process, ensuring reliable metal-joining while maintaining manufacturing simplicity. The elastic properties naturally compensate for variations in assembly conditions.
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
This approach provides secure interconnection between connector tabs and circuit boards, enhancing the manufacturing efficiency and reliability of head-stack assemblies while reducing the complexity and cost of the interconnection process.
Implementation Method 1
sliding an elastic component along a backside of the connection pad forming surface; and, stopping the elastic component on the backside and pressing the backside with the elastic component so as to press the connection pad forming surface against the edge of the circuit board
Implementation Method 2
metal-joining the connector tab and a connection pad of the circuit board by applying heat to a connection pad of the connector tab and the connection pad on the circuit board
Data Source
AI summary
A manufacturing method for a head-stack assembly. The method includes preparing a head-stack assembly. The method further includes placing a connection pad forming surface of a connector tab formed on an end of the trace so as to be positioned opposite to an edge of a circuit board; sliding an elastic component along a backside of the connection pad forming surface; and, stopping the elastic component on the backside and pressing the backside with the elastic component so as to press the connection pad forming surface against the edge. In addition, the method includes metal-joining the connector tab and a connection pad of the circuit board by applying heat to a connection pad of the connector tab and the connection pad on the circuit board while pressing the connection pad forming surface against the edge with the elastic component; and, removing the elastic component after the metal-joining.