Constellation HA Series Vacuum Transmission System Selection Guide

Constellation HA series vacuum transmission system: a complete guide from selection to integrated maintenance

In the fields of semiconductor manufacturing, solar cell production, and compound semiconductor processing, the vacuum wafer transfer system is the core hub connecting process modules and material handling systems. Whether it is PVD, CVD, or etching equipment, wafers must be efficiently and non destructively transferred between different chambers in a high vacuum environment. The Constellation HA series launched by Hine Automation is a modular and scalable cassette to cassette vacuum transfer platform that covers cluster configurations from 2 to 8 sides. This article will provide a practical guide for OEM engineers and on-site maintenance personnel based on the technical specifications of this series, covering selection decisions, system integration, and daily troubleshooting.

Overview of Constellation HA Series: Designed for Clusters of Different Sizes

The Constellation series is designed for wafers with a diameter of ≤ 200mm, using standard MESC interfaces and compatible with SEMI S2 and CE certifications. The entire series shares the same core component philosophy: high reliability vacuum robotic arm, vacuum elevator, and optional vacuum optical aligner. The numbers in its naming convention (200/400/500/600/800) directly reflect the total number of facets of the system - the number of physical ports that can connect process modules, load ports, or other accessories.

Model Total Side Number Typical Load Port Number Wafer Size Core Robot Arm

HA-200 4 1 cassette load port ≤ 200mm HA-3.2/HA-3.0

HA-400 4 1 cassette load port ≤ 200mm HA-5.0

HA-500 5 1 or 2 cassette load ports ≤ 200mm HA-5.0

HA-600 6 1 or 2 cassette load ports ≤ 200mm HA-5.0

HA-800 8 1 or 2 cassette load ports ≤ 200mm HA-5.0

For scenarios that require an entry-level inline layout and have limited footprint, the HA-200 offers a four sided configuration: one wafer box loading port and three process faces. It adopts HA-3.2 vacuum robotic arm, combined with HA-50V vacuum elevator, which is sufficient to meet the needs of basic research and development or small-scale production.

When it is necessary to build a cluster system, HA-400 to HA-800 all use longer HA-5.0 vacuum robotic arms, whose extension range covers all adjacent sides. The only difference between these models is the number of available side faces and the number of load ports. For example, HA-400 is a 4-face cluster (1 load port+3 process faces), while HA-800 is an 8-face cluster (2 load ports+6 process faces). This modular design allows device manufacturers to flexibly expand based on the actual number of process steps of the end user, without the need to redesign the entire transmission mechanism.

Core Component: The Engineering Significance of Reliability Data

All Constellation systems are built on highly reliable components. The manual clearly specifies the indicators of MCBF (Mean Time Between Failures)>3 million cycles and MTTR (Mean Time to Repair)<2 hours. For semiconductor equipment engineers, these two numbers directly translate into a significant reduction in unplanned downtime.

2.1 HA-3.0/HA-5.0 vacuum robotic arm

The robotic arm is the execution core of the transmission system. HA-3.0 is used for HA-200, and HA-5.0 is used for other models. Common characteristics of both:

High vacuum compatibility (materials selected include 6061-T6 aluminum alloy, 300/400 series stainless steel, Viton seals, borosilicate glass)

Wafer mapping: It can scan each slot in the cassette to see if there is a wafer, avoiding empty or collision

Cross slot detection: Identify tilted or partially pushed out wafers and stop their movement in a timely manner

Safety interlocks: linked with chamber door valves and elevator status

Maintenance reminder: The vacuum bellows and guide rails of the robotic arm are the key focus after long-term operation. When MCBF approaches 3 million times, it is recommended to actively check whether the arm end extension is smooth and listen for abnormal friction sounds. MTTR less than 2 hours means that most modular replacements can be completed within two hours - provided that pre calibrated replacement robotic arms are available on site.

2.2 HA-50V vacuum elevator

The elevator is responsible for transferring wafers between different vertical heights, such as lifting wafers from the loading port (atmospheric side) to the robotic arm pick-up height of the vacuum transfer chamber. Its key parameters include:

Lift height: compatible with 25 or 50 standard cassette cards

Timing coordination with the robotic arm: It is necessary to ensure that the elevator in place signal is interlocked with the extension/retraction of the robotic arm

Common failure modes: The encoder failure of the elevator's drive motor or vacuum seal leakage can cause inaccurate lifting height. If there is a deviation in the sampling position (the deviation gradually increases), the zero position switch and origin return function of the elevator should be checked first.

2.3 Optical aligner (optional)

The Constellation system offers two optical aligner options: