Probe Card Alignment Adjusting Mechanism for Substrate Positioning
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Solution Overview
Problem
Conventional probe cards face issues with alignment mismatch due to assembly errors, leading to time-consuming assembly and disassembly, inconvenient dismantling, and difficulty in repair, as well as the risk of damaging components during desoldering for repair.
Innovation Solution
An alignment adjusting mechanism using a planimetric position adjusting structure with positioning threaded holes and screws allows for accurate positioning of substrates within a frame, facilitating assembly and disassembly without the need for orderly alignment of parts, and enabling convenient part replacement and repair.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional probe cards are assembled by soldering, then the components are permanently bonded, but the assembly process is time-consuming and carries high risk of component damage during desoldering for repair
Solution Approach 1:
The probe card is divided into separable modules (probe head, space transforming substrate, circuit board) that can be detached from each other through alignment adjusting mechanisms, eliminating the need for complete desoldering during repairs while maintaining secure bonding during operation
Solution Approach 2:
The alignment adjusting mechanism provides dynamic adjustability during assembly and repair operations, allowing positional adjustments without permanent bonding, while maintaining stable connection during normal operation through the fastening structure
2Ease of repair
If probe card components are assembled by detachable assembly, then repair convenience is improved, but alignment mismatch from assembly errors cannot be adjusted and compensated
Solution Approach 1:
The alignment adjusting mechanism enables dynamic positional adjustment of components during assembly and repair operations, allowing operators to compensate for assembly errors and achieve precise alignment without permanent bonding constraints
Solution Approach 2:
The alignment adjusting mechanism acts as an intermediary between components, providing adjustable connection that maintains both the benefits of detachable assembly for repairability and the precision required for accurate component alignment
3Manufacturing precision
If parts are aligned one by one during assembly, then alignment precision can be controlled, but the assembly process becomes time-consuming and delays product delivery
Solution Approach 1:
Multiple alignment operations are merged into a single integrated alignment adjusting mechanism that can position multiple components simultaneously, reducing the total number of alignment steps while maintaining precision control
Solution Approach 2:
The alignment adjusting mechanism is pre-configured with positioning features that enable rapid alignment during assembly, eliminating the need for time-consuming step-by-step alignment procedures while ensuring accurate component placement
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 solution reduces assembly and disassembly time, enhances dismantling convenience, and simplifies part replacement and repair, while ensuring accurate alignment and reducing the risk of component damage during maintenance.
Implementation Method 1
a planimetric position adjusting structure with positioning threaded holes and screws allows for accurate positioning of substrates within a frame
Data Source
AI summary
An alignment adjusting mechanism for a probe card includes a frame, a substrate and positioning screws. The frame has an opening, an inner periphery wall surrounding around the opening, and an outer periphery wall corresponding to the inner periphery wall. The substrate is disposed in the opening and supported by a support flange extending from the inner periphery wall toward a center of the opening. The frame is provided with a plurality of positioning threaded holes each extending from the outer periphery wall to the inner periphery wall in communication with the opening. Each positioning screw is threaded into one of the positioning threaded holes and has an end stopped at a lateral side of the substrate. By turning the positioning screws, the planimetric position of the substrate on an imaginary plane is adjustable.