Pick-and-Place Apparatus Interval Regulation for Semiconductor Transfer
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Solution Overview
Problem
Conventional pick-and-place apparatuses can only regulate intervals between rows of semiconductor devices to two values, limiting efficient transfer between customer and test trays, requiring complex control procedures and increasing transfer time.
Innovation Solution
A pick-and-place apparatus with a cam member and driving source that allows for the regulation of intervals between picking unit modules in three distinct modes, enabling the transfer of semiconductor devices with different row intervals by alternately adjusting the intervals between picking unit modules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the interval regulation apparatus provides only two regulated states (first state with interval 'x' and second state with interval 'u'), then the structure is simple, but the adaptability to different tray configurations is limited and transfer time increases
Solution Approach 1:
The interval regulation apparatus is designed to dynamically adjust the row interval of picking units between multiple predetermined values (first interval x, second interval u, and third interval y). The picking units can be selectively positioned at different intervals according to the specific tray configuration, enabling adaptive adjustment without requiring a completely different apparatus for each configuration.
Solution Approach 2:
The apparatus changes the interval parameter of the picking units between multiple discrete values (x, u, y) based on the required tray configuration. By providing multiple predetermined interval settings rather than a fixed or binary adjustment, the system can match different tray row spacing requirements while maintaining a single unified apparatus structure.
2Productivity
If the pick-and-place apparatus uses two rows of picking units to increase transfer capacity, then productivity improves, but the need to regulate both row intervals and column intervals increases device complexity
Solution Approach 1:
Both the row intervals and column intervals of the picking units are designed to be dynamically adjustable. The picking units can independently adjust their spacing in the row direction and column direction, allowing the apparatus to handle various tray configurations efficiently while maintaining high transfer capacity with the two-row structure.
3Loss of time
If the conventional interval regulation apparatus maintains only two interval values (x and u), then the control procedure is simple, but the transfer time increases due to inability to optimize for specific configurations
Solution Approach 1:
The apparatus provides three predetermined interval settings (x, u, y) that can be selected based on the specific tray configuration. This allows the system to optimize transfer time for different scenarios without requiring complex real-time calculations or adjustments, as the optimal interval is pre-determined and can be directly applied.
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 efficient transfer of semiconductor devices between elements with varying row intervals, improving loading and unloading efficiency by allowing for multiple interval settings, thus reducing transfer time and simplifying control procedures.
Implementation Method 1
a cam member for regulating the intervals between the picking unit modules; and a driving source for providing a driving force for the cam member
Data Source
AI summary
A pick-and-place apparatus for transferring and loading semiconductor devices between first and second loading elements is provided. The pick-and-place apparatus includes a multiplicity of picking unit modules, each of which has at least one or more picking units, and an interval regulation apparatus for regulating intervals between the picking unit modules at the first to third modes. The first to third row interval values are different from each other. The intervals between the picking unit modules are all regulated to be identical to the first row interval at the first mode, are alternately regulated to the second row interval and the third row interval in turn at the second mode, and are alternately regulated to the third row interval and the second row interval in turn at the third mode.