HPAS Mono : High-precision alignment stacking

50nm XYZ alignment precision for stacking 2D materials & heterostructures / suspended devices / nanoscale electronics

Computer-aided alignment technologies

Nanovie HPAS Mono excels at sub-micron precision stacking - fast & accurate with imaging analysis and alignment software, superior and reliable stacking quality from the 50nm Z resolution and adjustable stage tilt, minimised oxidation and contamination as operating in a glove box is handy through software control.


HPAS feature image overlapping

Objects at different depths could be precisely aligned by the motorised stage at XYZ 50 nm/step and 0.056° angular resolution, extending the research into magic angle graphene and anistropic materials.



Object Tracking

HPAS feature object tracking

- detects the edges in live-view mode, allowing fast & accurate alignment. Example: a sample on PMDS.


Contrast Enhancement

HPAS feature contrast enhancement

- improves the colour contrast in live-view mode.


Image Overlapping

HPAS feature image overlapping

- makes it easy to align objects at different depths under extremely shallow depth of focus by comparing images captured at different depths.


RGB Analysis

HPAS feature rgb analysis

- derives material thickness from the RGB contrast database with four channels (red, green, blue and grey) and distinguishes up to a few layers of 2D materials (depending on the microscope & camera module used).



Temperature Control

HPAS feature image overlapping

- allows heating from room temperature upto 150˚C (or higher) with real-time PID software control.


Designs for oxygen- and moisture- sensitive materials

HAPS Mono enables handy operation in a glove box through exterior software control, or more convenient operation without multilayered gloves with the use of its own integrated inert gas chamber.


Nanovie Product HPAS Alignment Stacking 008n800web


Operated in a glove box, HPAS Mono can monitor and carry out the alignment stacking tasks under a high resolution microscope via the exterior computer interface.

Alternatively, HPAS Mono’s integrated inert gas chamber makes it even more convenient to perform all the tasks without wearing multi- layered gloves, from sample preparation, alignment to stacking, all under full protection.

Computer-Aided Interface

Nanovie's industry-leading alignment technologies were developped through the softerware interface that controls high-precision motor stage, high-sensitivity live-view camera, focus, RGB channels and temperature altogether.  Delicate stacking procedures are made quick and smooth for a wide range of applications, from p-n diodes, suspended devices, photodetectors, solar cells to metal mask alignment.

HPAS control interface


Stacking Procedures

After placing the PDMS transferred 2D materials onto the sample holder and the target substrate onto the moving stage, the following procedures would be accomplished in the control interface.


1) PDMS Transfer

HPAS standard procedure 05 g


2) Focus and Position

HPAS standard procedure 09


3) Align and stack

HPAS standard procedure 11 g


4) Inspect

HPAS standard procedure 12 g


Features & Specifications

  • HPAS Mono (High-Precision Alignment Stacking), equipped with professional computer-aided alignment technologies, is able to precisely align the hetereostructures or 2D materials during the stacking process.


    Sub-micron Precision Stage
    • XYZ resolution ≈ 50 nm/step
    • Rotation resolution ≈ 0.056°
    • Travel range XYZ ≈ 2 x 2 x 5 cm
    • Computer-aided stage control


    Computer-aided Alignment
    • Live-view operation
    • Computer-aided focus
    • Contrast enhancement
    • Object tracking
    • Image overlapping
    • RGB thickness analysis


  • In place of a generic digital camera, HPAS Mono is well integrated with a professional-grade objective and a high-sensitivity camera to perform the highly demanding alignment tasks.


    • Magnification = 20 X
    • Numeric aperture = 0.45
    • Flat-field correction*
    • Abberation correction*
    • Apochromatic correction*
    • Assisted illumination


    • High sensitivity sensor
    • Sensor size: 1/2.8" (pixel size ≈ 3 μm)
    • Dynamic Resolution: 1920 x 1080 p (Video)
    • Static Resolution: 3264 x 1836 p
    • Exposure time: 1 ms ~ 10 sec
    • Supports: UDB, HDMI, SD card (class 10)


    * The above could be customised and subject to changes without notice.

  • In addition to all kinds of two-dimensional materials, Nanovie HPAS Mono excels in coping with the following applications:


    2D heterostructures:
    • Photovoltaic cells / photodetectors
    • Interface / contact improvement
    • Light-emitting / tunnelling diodes
    • Electrolyte / logic gates


    Other applications:
    • Suspended devices
    • Metal mask alignment
    • Nanoscale electronics


  • HPAS Mono is a compact tabletop alignment stacking station that offers the complete professional grade functions required to carry out the cutting-edge stacking tasks.


    Main Body:

    • Dimension (mm): 450 X 300 X 500(H)
    • Weight (kg): 18 kg
    • Power: DC 12V 10A (Input: 100-240V AC @ 50/60Hz)
    • Sample Working Space(mm): 20 X 20 X 50(H)
    • Sample Size (mm) < 20 X 20


    Computer Requirements:

    • OS: Windows 7, 8, 10
    • USB: 2 Ports