Core Technologies

MEMS Technology

Device design and prototyping using FUJIFILM’s unique Piezoelectric Film

Fujifilm’s deep knowledge of piezoelectric materials and deposition technologies, as well as its rapid device prototyping line, enable us to quickly design, build, and test MEMS devices that meet your needs

Advantages of FUJIFILM’s piezoelectric material

Good displacement response linearity
No poling process required
Finished device can be immediately operated. Even heated above Curie temperature, the device response is unaltered.
Highly uniform across a wafer and wafer-to-wafer

Piezoelectric film on 8-inch wafer

High Piezoelectric Constant and Excellent Durability

This bar graph compares the piezoelectric constants of Fujifilm’s Nb-doped PZT, Company A’s sputtered PZT, Company B’s sputtered PZT, and Company C’s sol-gel PZT. Fujifilm’s PZT has a piezoelectric constant d31 of 220, the highest value compared to Companies A through C.

This plot graph shows the changes in displacement amount in relation to the number of pulses. It shows that there is no degradation in displacement even after 1011 pulses.

FUJIFILM’s proprietary Highly Nb-doped PZT film (patented)

These show the crystal structure of Nb-doped PZT, the cross-sectional SEM images of conventional bulk products and Fujifilm’s thin membranes, and a schematic diagram of the polarization direction. Nb-doped PZT has niobium inserted in the center of the crystal lattice instead of zirconium or titanium. Unlike bulk products, our thin membrane’s structure is composed of crystal columns that extend in the direction of the coating thickness, with the polarization direction aligned in the same direction.

Application to Inkjet heads

High resolution, compact print heads with high-density 2-D arrayed nozzles actuated by FUJIFILM’s Nb-PZT film

On the left, a schematic diagram of an inkjet using a piezoelectric film is shown. The piezoelectric film expels the ink, resulting in the ejection of high-viscosity ink. On the right, a cross-sectional view of the piezoelectric film is shown. The structure consists of crystal columns densely packed together.

Application to micro-mirrors

Achieving device performance that is not reachable with conventional piezoelectric films

It shows a photograph of a micro-mirror using a piezoelectric membrane and a schematic diagram illustrating its operation. The micro-mirror consists of a mirror that reflects light and a driving force that enables the mirror to tilt and move at high speeds. By reflecting light with the mirror, it is possible to scan the light.

Grain Formation Technology

Technology that forms grains through buildup

Functional Molecule Technologies

Technology to manufacture small molecules that allow for free transformation of the molecular structures of organic compounds, making the impossible a possibility

Functional Polymers

Technology to manufacture polymers that allow for free transformation of the molecular structures of organic compounds, making the impossible a possibility