ZYGO ZMI 501A 24Bit Measurement Electronics 8020-0237-05

ZYGO ZMI 501A 8020-0237-05 is a complete and compact measurement electronics solution specifically designed for displacement measurement interferometers. It utilizes the optical signals from an interferometer driven by a ZMI laser source to calculate displacement, and can provide high-precision measurements for demanding position metrology applications.

Functional Features

Multi-axis Measurement Capability: It can provide two-axis measurement in a convenient standalone enclosure to meet multi-dimensional measurement needs. For more axes requirements, it can achieve measurement expansion up to 64 axes by modularly adding ZMI 2400, 4000 and 4100 series boards in a VME chassis, featuring excellent scalability.

High-precision Measurement: It can offer sub-nanometer resolution for highly challenging position metrology applications, making it suitable for work scenarios with extremely high precision requirements. Moreover, its patented cyclic error correction option can automatically and seamlessly eliminate nonlinear errors common in DMI systems, ensuring the ultimate measurement accuracy.

Fast Data Interface: It supports up to 4 measurement channels and can easily interface with standard motion control systems at a fast data rate, ensuring efficient data transmission and improving overall work efficiency.

Technical Parameters

Item	Details
Physical Characteristics	Weight: 2 pounds (1 kg); Cable clearance at both ends: 5 inches (127 mm)
Electrical Requirements	Nominal power supply requirement: +5.2 VDC, current: 3.3 A
Environmental Conditions	Operating temperature range: 0 to 40°C, non-condensing conditions
Measurement Board	Each board can handle 2 axes; Minimum optical input power: 8 µW; Linear accuracy at 3 V: 1.3 LSB
Serial (Quadrature) Data	Maximum position resolution: 1/512 (1.24 nm); Position range: ±10.6 m; Maximum target mirror speed: 475 mm/s; Data rate: optional 3 to 24 MHz
Parallel Data	Constant position resolution: 1/512 (1.24 nm); Position range: ±10.6 m; Maximum target mirror speed: 475 mm/s

Application Fields
It is particularly suitable for semiconductor metrology and advanced packaging applications, and performs excellently in scenarios requiring high precision and stability, such as:

Wafer stage: Helps achieve high-precision positioning and displacement measurement during wafer processing, ensuring the accuracy of chip manufacturing.
Stacking stage system: Provides key measurement support for the precise motion control of stacking stages, ensuring accurate stacking of multi-layer structures.
Reticle stage: Meets the strict position accuracy requirements of reticle stages in lithography processes, improving lithography quality.
Gantry system: Realizes high-precision position feedback in large gantry-type equipment, ensuring the stability and positioning accuracy of equipment operation.
Steering mirror: Provides high-precision measurement for angle adjustment and position control of steering mirrors, widely used in optical systems and other fields.

Suggestions for Matching Use
This measurement electronic device can be integrated with ZMI lasers (such as ZMI 7705), which can further improve the performance in precision metrology applications and provide users with better measurement solutions.

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