{"id":5483,"date":"2026-06-24T09:41:52","date_gmt":"2026-06-24T01:41:52","guid":{"rendered":"https:\/\/whmicro.com\/?p=5483"},"modified":"2026-06-24T09:41:52","modified_gmt":"2026-06-24T01:41:52","slug":"ultraviolet-single-side-mask-aligner-selection-guide-core-technical-specifications-and-market-comparison-analysis","status":"publish","type":"post","link":"https:\/\/whmicro.com\/?p=5483","title":{"rendered":"Ultraviolet Single-Side Mask Aligner Selection Guide: Core Technical Specifications and Market Comparison Analysis"},"content":{"rendered":"

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\u6211\u662f\u6587\u672c\u5757\u3002\u5355\u51fb\u201c\u7f16\u8f91\u201d\u6309\u94ae\u6765\u66f4\u6539\u6b64\u6587\u672c.<\/p>\n

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1. Introduction<\/span><\/h3>\n

Ultraviolet (UV) mask aligners are core equipment in micro\/nano fabrication, widely used in semiconductor manufacturing, MEMS (micro-electromechanical systems), microfluidic chips, optoelectronic devices, biochips, and other R&D and production fields. With the rapid growth of domestic micro\/nano fabrication industries, the selection of UV mask aligners has become an important issue for many research institutions and enterprises.<\/span><\/p>\n

This article takes the URE\u20112000\/A8 UV single\u2011side mask aligner as an entry point to systematically review the core technical specifications of UV mask aligners and to provide an objective comparison with mainstream products on the market, aiming to offer a reference for practitioners. It should be noted that Suzhou Wenhao is one of the companies related to the URE\u20112000 series mask aligners; this article is purely a technical, objective analysis.<\/span><\/p>\n

\n

2. Core Technical Specifications of UV Mask Aligners<\/span><\/h3>\n

When selecting a mask aligner, the following key parameters are critical in determining the equipment’s suitability:<\/span><\/p>\n

2.1 Resolution<\/span><\/h4>\n

Resolution is the most fundamental performance metric, directly determining the smallest feature size achievable. A practical industry consensus is that stable attainment of the 1\u2011micron level is the baseline for ensuring pattern fidelity in micro\/nano fabrication. Resolution is influenced by multiple factors, including light source wavelength, optical system, and photoresist performance.<\/span><\/p>\n

2.2 Alignment Accuracy<\/span><\/h4>\n

Alignment accuracy determines the positional overlay precision of successive patterns in multi\u2011layer lithography processes. For processes involving multiple lithography layers (such as MEMS or IC manufacturing), alignment accuracy often has greater practical significance than resolution \u2013 resolution sets the \u201cupper limit\u201d of the mask aligner, while alignment accuracy determines whether that limit can be realised in actual multi\u2011layer overlay.<\/span><\/p>\n

2.3 Exposure Area and Wafer\/Mask Compatibility<\/span><\/h4>\n

Exposure area defines the maximum wafer size that the equipment can handle. Different application scenarios have different size requirements \u2013 R&D phases typically use 4\u2011inch or 6\u2011inch wafers, whereas production phases require 8\u2011inch and larger support. Mask size compatibility is equally important, as it directly influences the range of reticles that can be used.<\/span><\/p>\n

2.4 Light Source System<\/span><\/h4>\n

The power, wavelength, and stability of the light source directly affect exposure efficiency and quality. Most mainstream UV mask aligners currently use high\u2011pressure mercury lamps or UV\u2011LED sources at 365 nm (i\u2011line). The uniformity and stability of the light source significantly impact exposure pattern quality.<\/span><\/p>\n

\n

3. Technical Analysis of the URE\u20112000\/A8 UV Single\u2011Side Mask Aligner<\/span><\/h3>\n

The URE\u20112000\/A8 is a UV single\u2011side mask aligner. Its main technical specifications are as follows:<\/span><\/p>\n

\n
\n
<\/div>\n
<\/div>\n<\/div>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Technical Parameter<\/span><\/th>\nValue<\/span><\/th>\n<\/tr>\n<\/thead>\n
Exposure area<\/span><\/td>\n200 mm \u00d7 200 mm<\/span><\/td>\n<\/tr>\n
Resolution<\/span><\/td>\n\u22653 \u03bcm<\/span><\/td>\n<\/tr>\n
Alignment accuracy<\/span><\/td>\n\u00b12 \u03bcm<\/span><\/td>\n<\/tr>\n
Mask sizes<\/span><\/td>\n5 inch, 7 inch, 9 inch<\/span><\/td>\n<\/tr>\n
Wafer sizes<\/span><\/td>\n4 inch, 6 inch, 8 inch<\/span><\/td>\n<\/tr>\n
Mercury lamp power<\/span><\/td>\n1000 W (DC)<\/span><\/td>\n<\/tr>\n
Exposure intensity<\/span><\/td>\n\u226515 mW\/cm\u00b2<\/span><\/td>\n<\/tr>\n
Peak exposure wavelength<\/span><\/td>\n365 nm<\/span><\/td>\n<\/tr>\n
Exposure mode<\/span><\/td>\nTimed (countdown 0.1 s \u2013 9999.9 s)<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

The equipment has a relatively complete system architecture, mainly comprising the following modules:<\/span><\/p>\n

Exposure Head System:<\/span><\/strong>\u00a0Uses a German OSRAM 1000 W DC high\u2011pressure mercury lamp, equipped with a cold\u2011light elliptical mirror, XYZ mercury\u2011lamp adjustment stage, and an optical system consisting of a cold\u2011UV plane reflection mirror, shutter, fly\u2011eye lens array, and cold\u2011UV parabolic reflection mirror.<\/span><\/p>\n

Alignment Stage System:<\/span><\/strong>\u00a0Includes a mask\u2011wafer relative motion stage, (XY) rotation stage, wafer levelling mechanism, wafer focusing mechanism, three wafer chucks (4\u2011inch, 6\u2011inch, 8\u2011inch) and three mask holders (5\u2011inch, 7\u2011inch, 9\u2011inch).<\/span><\/p>\n

CCD Alignment Microscope System:<\/span><\/strong>\u00a0Equipped with two 4\u00d7 microscopes, two illumination sources, two CCD cameras, and a 22\u2011inch LCD monitor.<\/span><\/p>\n

Electrical and Pneumatic Control Systems:<\/span><\/strong>\u00a0Includes a mercury\u2011lamp trigger power supply, microcontroller control system, control cabinet, and pneumatic components such as cylinders, solenoid valves, pressure\u2011reducing valves, etc.<\/span><\/p>\n

Additionally, the equipment comes standard with a vacuum pump, air compressor, and 10 m of air tubing as accessories.<\/span><\/p>\n

From the specifications, the URE\u20112000\/A8 covers wafer sizes from 4 to 8 inches and mask sizes from 5 to 9 inches, offering good wafer\u2011size flexibility. The light source system uses a 1000 W high\u2011power mercury lamp, with an exposure intensity of \u226515 mW\/cm\u00b2, sufficient for most conventional lithography process requirements.<\/span><\/p>\n

\n

4. Comparison with Mainstream Market Products<\/span><\/h3>\n

To provide a more comprehensive view of mask aligner selection dimensions, the URE\u20112000\/A8 is compared below with several mainstream products on the market.<\/span><\/p>\n

4.1 SUSS MicroTec MA8<\/span><\/h4>\n

The SUSS MA8 is an 8\u2011inch contact mask aligner from SUSS MicroTec (Germany), widely used in high\u2011end R&D and production applications worldwide. Its main technical features include:<\/span><\/p>\n

    \n
  • \n

    Supports 8\u2011inch and smaller wafers<\/span><\/p>\n<\/li>\n

  • \n

    Minimum resolution down to 0.8 \u03bcm<\/span><\/p>\n<\/li>\n

  • \n

    Front\u2011side alignment accuracy \u22640.5 \u03bcm<\/span><\/p>\n<\/li>\n

  • \n

    Light source wavelength 350\u2013450 nm<\/span><\/p>\n<\/li>\n

  • \n

    Supports dual\u2011side alignment and exposure<\/span><\/p>\n<\/li>\n

  • \n

    Equipped with LED illumination, intensity \u226535 mW\/cm\u00b2 (365 nm), uniformity \u2264\u00b12.5%<\/span><\/p>\n<\/li>\n<\/ul>\n

    The SUSS MA8 has clear advantages in resolution and alignment accuracy, and supports dual\u2011side lithography, making it suitable for advanced R&D and production where high precision is required. Its price is correspondingly higher; it is reported that similarly configured SUSS equipment costs over CNY 2 million.<\/span><\/p>\n

    4.2 EVG 610<\/span><\/h4>\n

    The EVG 610 is an entry\u2011level mask aligner from EV Group (Austria), primarily aimed at R&D users. Its main technical features include:<\/span><\/p>\n

      \n
    • \n

      Supports pieces up to 8\u2011inch (200 mm) wafers<\/span><\/p>\n<\/li>\n

    • \n

      Mask sizes: 3 inch, 5 inch, 7 inch<\/span><\/p>\n<\/li>\n

    • \n

      Exposure resolution \u22640.8 \u03bcm<\/span><\/p>\n<\/li>\n

    • \n

      Supports four exposure modes: proximity, soft contact, hard contact, vacuum contact<\/span><\/p>\n<\/li>\n

    • \n

      Optional back\u2011side alignment module<\/span><\/p>\n<\/li>\n

    • \n

      Supports mercury lamp or UV\u2011LED light source<\/span><\/p>\n<\/li>\n<\/ul>\n

      The EVG 610 also performs excellently in resolution and offers flexible exposure modes, along with back\u2011side alignment and bonding alignment capabilities. Its positioning is more towards entry\u2011level needs for research users.<\/span><\/p>\n

      4.3 URE\u20112000\/A8<\/span><\/h4>\n

      Compared with the two imported models above, the URE\u20112000\/A8 has its own characteristics:<\/span><\/p>\n

      Advantages:<\/span><\/strong><\/p>\n

        \n
      • \n

        Broad wafer coverage (4 to 8 inches) and good mask compatibility (5 to 9 inches)<\/span><\/p>\n<\/li>\n

      • \n

        1000 W high\u2011power mercury lamp provides ample exposure energy<\/span><\/p>\n<\/li>\n

      • \n

        Complete system configuration, including CCD alignment microscope and other core components<\/span><\/p>\n<\/li>\n

      • \n

        As a domestic product, may offer advantages in procurement lead time, after\u2011sales service, and cost<\/span><\/p>\n<\/li>\n<\/ul>\n

        Areas for improvement:<\/span><\/strong><\/p>\n

          \n
        • \n

          Resolution (\u22653 \u03bcm) lags behind the SUSS MA8 (0.8 \u03bcm) and EVG 610 (\u22640.8 \u03bcm)<\/span><\/p>\n<\/li>\n

        • \n

          Alignment accuracy (\u00b12 \u03bcm) is also lower than that of imported brands (SUSS MA8 at 0.5 \u03bcm level)<\/span><\/p>\n<\/li>\n

        • \n

          Does not explicitly mention support for dual\u2011side lithography<\/span><\/p>\n<\/li>\n<\/ul>\n

          4.4 Comparison Summary<\/span><\/h4>\n
          \n
          \n
          <\/div>\n
          <\/div>\n<\/div>\n\n\n\n\n\n\n\n\n\n\n\n
          Dimension<\/span><\/th>\nURE\u20112000\/A8<\/span><\/th>\nSUSS MA8<\/span><\/th>\nEVG 610<\/span><\/th>\n<\/tr>\n<\/thead>\n
          Max wafer size<\/span><\/td>\n8 inch<\/span><\/td>\n8 inch<\/span><\/td>\n8 inch<\/span><\/td>\n<\/tr>\n
          Resolution<\/span><\/td>\n\u22653 \u03bcm<\/span><\/td>\n\u22640.8 \u03bcm<\/span><\/td>\n\u22640.8 \u03bcm<\/span><\/td>\n<\/tr>\n
          Alignment accuracy<\/span><\/td>\n\u00b12 \u03bcm<\/span><\/td>\n\u22640.5 \u03bcm<\/span><\/td>\n\u22641 \u03bcm<\/span><\/td>\n<\/tr>\n
          Light source<\/span><\/td>\n1000 W mercury lamp<\/span><\/td>\nLED \/ mercury lamp<\/span><\/td>\nMercury lamp \/ LED<\/span><\/td>\n<\/tr>\n
          Dual\u2011side lithography<\/span><\/td>\nNot specified<\/span><\/td>\nSupported<\/span><\/td>\nOptional<\/span><\/td>\n<\/tr>\n
          Origin<\/span><\/td>\nChina<\/span><\/td>\nGermany<\/span><\/td>\nAustria<\/span><\/td>\n<\/tr>\n
          Price range<\/span><\/td>\nRelatively lower<\/span><\/td>\nHigher (CNY 2M+)<\/span><\/td>\nMedium<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

          It should be noted that different equipment suits different application scenarios. The SUSS MA8 and EVG 610 excel in precision and are suitable for advanced processes requiring high pattern resolution and alignment accuracy, while the URE\u20112000\/A8 may be more attractive in terms of wafer compatibility and cost, making it suitable for conventional micro\/nano fabrication with less stringent precision requirements.<\/span><\/p>\n

          \n

          5. Selection Recommendations<\/span><\/h3>\n

          Based on the above analysis, the selection of a UV single\u2011side mask aligner should comprehensively consider the following factors:<\/span><\/p>\n

          1. Process Precision Requirements:<\/span><\/strong>\u00a0If the process requires resolution below 1 \u03bcm, or high\u2011precision multi\u2011layer overlay, imported equipment like the SUSS MA8 or EVG 610 may be more appropriate. If the precision requirement is more relaxed (e.g., \u22653 \u03bcm), domestic models like the URE\u20112000\/A8 can meet the need.<\/span><\/p>\n

          2. Wafer and Mask Sizes:<\/span><\/strong>\u00a0Choose equipment based on the actual wafer sizes to be processed and available mask sizes. The URE\u20112000\/A8 offers broad wafer and mask compatibility, providing good flexibility.<\/span><\/p>\n

          3. Budget and Cost:<\/span><\/strong>\u00a0Imported equipment has advantages in precision and functionality but at a higher price; domestic equipment may be more cost\u2011effective, especially for research teams or SMEs with limited budgets.<\/span><\/p>\n

          4. After\u2011Sales Service and Technical Support:<\/span><\/strong>\u00a0Domestic equipment may have advantages in response time, spare parts availability, and technical support due to geographical proximity \u2013 these are non\u2011negligible soft factors.<\/span><\/p>\n

          5. Expandability and Upgrade Potential:<\/span><\/strong>\u00a0Consider whether the equipment supports potential future process upgrades, such as dual\u2011side lithography or different light\u2011source configurations.<\/span><\/p>\n

          \n

          6. Conclusion<\/span><\/h3>\n

          Selecting a UV single\u2011side mask aligner is a decision\u2011making process that requires weighing multiple dimensions, including process requirements, budget constraints, and technical support. The URE\u20112000\/A8, as a representative domestic UV mask aligner, has its own characteristics in wafer compatibility, system completeness, and cost\u2011performance ratio. At the same time, the advantages of international brands like SUSS and EVG in resolution and precision should not be overlooked.<\/span><\/p>\n

          Suzhou Wenhao, as a company related to the URE\u20112000 series mask aligners, continues to deepen its presence in microfluidic chips and lithography equipment. It is recommended that potential users fully evaluate their own process needs before selection, verify equipment performance through actual wafer testing, and make the most suitable choice for their specific applications.<\/span><\/p>\n

          \n
          \n

          Disclaimer:<\/span><\/strong>\u00a0This article is written based on publicly available technical information and aims to provide readers with an objective reference for selection. The technical parameters of the products mentioned are sourced from public channels; actual performance may vary depending on specific configurations and operating conditions. Users are advised to confirm detailed specifications with suppliers and conduct practical testing before final decisions.<\/span><\/p>\n<\/blockquote>\n

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