Opener Apparatus for Simultaneous Substrate Carrier Access
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Solution Overview
Problem
Conventional substrate carrier stacks in semiconductor production allow only one loading and unloading gap to be opened at a time, limiting the throughput of substrates due to the sequential nature of accessing substrate seats, which is inefficient for high-volume semiconductor production.
Innovation Solution
An opener apparatus that moves substrate carriers from a stacked state to an unstacked state, allowing simultaneous access to multiple substrate seats by creating loading and unloading gaps between adjacent carriers, enabling efficient unloading and loading of substrates without additional relative movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If only one loading and unloading gap is opened at a time in substrate carrier stacks, then the structural simplicity is maintained, but the substrate throughput is limited due to sequential access
Solution Approach 1:
The opener apparatus is divided into multiple independent opening units, each capable of opening a gap between adjacent substrate carriers. This segmentation allows multiple gaps to be opened simultaneously, enabling parallel substrate access and significantly increasing throughput without requiring a completely new system architecture
Solution Approach 2:
The system transitions from opening gaps in a single plane or sequence to opening multiple gaps simultaneously across different vertical levels of the substrate carrier stack. This multi-level parallel operation adds a dimensional aspect to the gap-opening process, allowing concurrent access to multiple substrate carriers
2Productivity
If multiple loading and unloading gaps are opened simultaneously, then the substrate handling efficiency is improved, but the device complexity increases
Solution Approach 1:
The movement mechanism is segmented into multiple independent opening units, each with its own actuator and control system. This modular approach allows simultaneous operation of multiple units without requiring complex interdependencies, as each unit independently controls the opening of gaps between adjacent substrate carriers
Solution Approach 2:
The opener apparatus is designed to pre-position and pre-align multiple opening units before simultaneous operation. This preliminary preparation ensures that when multiple gaps are opened concurrently, the system maintains precision and coordination without requiring complex real-time control mechanisms
Data Source
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AI summary
An opener apparatus that accommodates and opens a substrate carrier stack of substrate carriers stacked in a vertical direction, includes a movement mechanism that moves all of the substrate carriers or a sub-group of the substrate carriers relatively with respect to each other along a vertical axis in an opening operation to assume an unstacked state and to be positioned at defined vertical opened positions within the opener apparatus with vertical distances between vertically adjacent substrate carriers in the unstacked state. The opener apparatus also moves the substrate carriers in the unstacked state relatively with respect to each other along the vertical axis in a closing operation to reassume a stacked state.