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R.D. Mathis Company acquires Jori Resources
The R. D. Mathis Company is pleased to announce that it has recently acquired and merged operations with Jori Resources of Thousand Oaks, California.

Jori Resources has been manufacturing tungsten, tantalum and molybdenum evaporation sources to the thin film industries for more than 40 years. Together, both companies have over 90 years of experience in providing high quality evaporation sources, materials and related products to the thin film and metallizing industries. The Jori product line compliments the already wide selection of sources available from the R.D. Mathis Company.

Customers from both companies can continue to expect the same products, quality and service they have been used to receiving. Although no immediate changes are planned, one new benefit to this merger is that The R.D. Mathis Company now has one of the widest selections of evaporation sources in the industry to offer to you. We also continue to develop custom and modified sources to meet your specific coating needs.

Thin-film coating design: Excel extends optical coating software capabilities
Laser World Focus
Microsoft Excel is a widely utilized spreadsheet program that can enhance the utility of optical thin-film coating design software in diverse ways, from familiar copy/paste data exchange through process automation as client and server.

The use of dielectric cure monitoring in manufacturing
Dielectric cure monitoring, also called "Dielectric Analysis" or DEA, is a technique that relates the electrical properties of thermosets and polymers to physical properties such as viscosity, modulus and cure state. Dielectric cure monitoring uses sensors and electrical measurements to obtain the resistivity and permittivity of a material.

Crafting ultrathin color coatings: Physicists produce vivid optical effects — on paper
In a sub-basement deep below the Laboratory for Integrated Science and Engineering at Harvard University, Mikhail Kats gets dressed. Mesh shoe covers, a face mask, a hair net, a pale gray jumpsuit, knee-high fabric boots, vinyl gloves, safety goggles and a hood with clasps at the collar — these are not to protect him, Kats explains, but to protect the delicate equipment and materials inside the cleanroom.

Mass production of innovative OLED displays
Printed Electronics World
OLED is the only technology that can enable the ultra-light, paper-thin displays that make bendable electronic gadgets possible. And with key proprietary innovations, the YIELDjet FLEX is the only customer-proven technology of its kind that can enable cost-effective manufacturing of flexible OLED displays in high volume.

Characterization of thin films and materials
Vacuum Technology & Coating
In 1887, Paul Drude introduced ellipsometry to the world. Ellipsometry is an optical tool that provides information about the interaction of light with materials. It is fast, generally non-destructive and non-invasive. It can be applied to characterize surfaces, interfaces, alloys and multilayered films.


What you need to know about aluminum evaporation
Aluminum is a very popular material for evaporation. We have many different sources that can be used to successfully evaporate aluminum. However, there are a few common problems that occur when evaporating this material. One problem that you may be aware of that aluminum wets to most surfaces and does not stay in the evaporation area. The other, more significant problem is that moltent aluminum is very corrosive and will corrode through most surfaces and cause the boat or box to break during the evaporation process. Spitting is not normally a problem. Tungsten is the most resilient of the materials to this corrosiveness. Below are some things to consider when choosing the right source for your application:

A) What is the maximum current you have available to apply to the source?
B) How thick of a coating are you attempting?
C) What is the distance from the source to the substrate?
D) Are you evaporating in an upward direction?
E) What length source will fit in to your mounting points?

After reviewing the information above, you may be able to select the right source for your process. If you need further assistance, please do not hesitate to contact us.

Join R.D. Mathis Company at these upcoming events
Feb. 19: Northern California American Vacuum Society 2015 Exhibition
Holiday Inn, San Jose, California

April 7-8, 2015: Material Research Society 2015 Spring National Exhibition
Moscone Convention Center, San Francisco

April 28-29, 2015: Society of Vacuum Coaters 2015 National Exhibition
Santa Clara Convention Center, Santa Clara, California.

The Evaporator

R.D. Mathis Company
P.O BOX 92916
Long Beach, Ca 90809-2916
Telephone (562) 426-7049
Fax (562) 595-0907
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