Conductive Inks
Creative
Materials, Inc. makes numerous electrically conductive silver and
carbon filled inks for the electronics and medical industries.
Different applications require different inks. To help our potential
customers select the appropriate ink for their applications, we
gather pertinent information about the nature of a specific application;
i.e., requirements of temperature, flexibility, and conductivity
as well as method of application.
The electrical performance of the ink depends on which particular
ink is used, based on the requirements of the application. We can
offer screen-printable and pad-printable inks, with sheet resistivity
as low as 0.0l ohms/square per mil (0.00l”) of thickness
and as high as 1meg(million) ohms/square/mil.
There are a wide variety of substrates onto which the inks can
be printed. Typical substrates are polyester film, polyimide film,
and FR4 board. Films such as Dupont’s Mylar (polyester) and
Dupont’s Kapton (polyimide) film are flexible and available
in a variety of thicknesses. Mylar can withstand about 120°C
before it distorts. Kapton can withstand 200°C without distorting.
Picking the appropriate substrate depends on the maximum temperature
the devices will need to withstand in operation or in further processing
after the ink is applied and cured. FR4 board is a typical printed
circuit board substrate. This type of material can withstand about
200°C (or higher) and is not flexible.
We have inks for a variety of different printing processes, including
screen-printing, pad-printing and flexographic printing. Typically
screen-printing or pad-printing is used for the printing of circuits,
membrane switches, flexible heaters and medical electrodes. Pad-printing
is especially useful in applying material to contoured or uneven
surfaces. Flexograhic printing is used for all of the applications
listed above, but with higher volumes. The printing accuracy will
depend on the printing technique as well as experience of the printer.
The costing of inks is volume sensitive, pricing is by the gram
and the cost is lower per gram, for large volumes. When asking
for a quote, please give an estimate of volume usage.
View
our brochures.
Please contact us today to discuss
your requirements.