This is a new dispensing system that can apply ultra-small droplets of liquid with greater smallness, precision, and reliability to meet the needs of the manufacturing industry.

The femto-SpotterTM can transfer (apply) tiny amounts of liquid to precise positions, ranging from femtoliters (fL).

In addition, it can handle high-viscosity liquids, resolving issues that previously existed with conventional dispensers.

The femto-SpotterTM can be used alone or integrated into a system for more comprehensive applications.


Ultrafine dropletAttention
A dispenser that can apply liquid in ultrafine amounts (fL, pL, nL) that was previously impossible.
High-viscosity liquids
Capable of applying various liquids with viscosities ranging from low to high (up to 200,000mPas·s).
Precise application to a specific location (position accuracy: several µm).
Filler compatibility
Compatible with liquids containing fillers.
No clogging
Since the liquid is forcibly ejected, there is no clogging.
No dead volume
Even expensive liquids can be used down to the last drop.
Also compatible with further compacting the main body.
Also compatible with customizing the system.



Method Needle transfer method
Coating volume fL to nL*
Coating diameter 5 µm to 1 mm*
Compatible viscosity 1 to 200,000 mPa・s
Body size 36 mm × 36 mm × 170 mm**
Weight About 200 g

* Depends on the liquid to be dispensed and the material to be coated.
** Excluding protrusions.


Mechanism Overview

sample image

The mechanism has a simple structure as follows:

    1. Needle: a needle that transfers liquid droplets
    2. Reservoir: a cylinder that holds the coating liquid
    3. Coating liquid: liquid to be applied by the needle is held in the reservoir
    4. Coating object: transfers the tiny liquid droplets adhered to the tip of the needle

The simple introduction of the mechanism is as shown in the figure on the left.

    1. The needle descends inside the reservoir
    2. The needle protrudes from the hole in the reservoir to the outside
    3. Tiny droplets of liquid adhering to the tip of the needle are transferred to the object surface
    4. The needle rises and returns to the reservoir, and moves on to the next coating



  1. Essential liquid control in manufacturing
    1. Solder paste
    2. Adhesives
    3. Ink and paint
  2. Also useful in research and development
    1. Precious liquids such as DNA and reagents
    2. Patterning with conductive ink
    3. Determination of quantitative amounts of adhesive



  1. From standalone head to system integration
    1. Prototype experiments using standalone head
    2. Small batch production by incorporating into a system
    3. Full-scale production in-line
  2. High-spec mass production systems are also available
    1. High-precision desktop system
    2. Batch production system