About Filtran

Filtran Microcircuits Inc. produces microstrip, bonded stripline and thick metal-backed Teflon (PTFE) and mixed dielectric multilayer circuits for satellite, aerospace, telecommunications,automotive, navigation and defense applications worldwide. Located in Ottawa, Ontario, Canada, we are an innovative, technically strong group which includes some of the most creative scientists in the microwave circuit industry. Serving our diverse clientele since 1983, we have earned a reputation for producing technically intricate circuits and superior quality workmanship, as well as for meeting delivery schedules.

Precision Circuits

In high-end applications like aerospace, air traffic control and search and rescue, microwave circuitry must be reliable. Filtran delivers the precision and performance that these mission-critical situations require. We've developed our own equipment and processes to manufacture truly precision circuits with edge resolution of .0005 inches or better.

Innovative Processing

Process engineers recognize the difficulty in achieving reliable plated-through-holes (PTH) in PTFE circuits because of Teflon's chemically inert nature. At Filtran, we've developed our own Sodium Etch formulation for PTH and edge plating. It gives us tight control of processing, resulting in: Reliable, high-performance circuits Excellent adhesion of copper to PTFE

Blind Hole Sputtering

Filtran Microcircuits has also successfully pioneered sputtering techniques for PTH applications on thick metal-backed (aluminum, copper or brass) PTFE circuitry. Our unique blind hole sputtering process produces PTFE substrates with superior reliability, performance and mechanical strength at a competitive price.

High-precision Photolithography

The accuracy of our circuit board imaging approaches semi-conductor grade resolution. We achieve these remarkable results through our own specially developed processes using liquid photoresists and high-intensity collimated UV exposure techniques. We use these fine line processes for both single- and double-sided PTH boards.

Circuit Assembly

We apply exacting production standards to our circuits during and after photolithography. Complex board shapes are fabricated using CNC routing, milling,laser machining and special dies. Filtran Microcircuits also has thermo-compression and ultrasonic wire bonding facilities using gold and aluminum wire or ribbon. Parallel gap wielding equipment adds a greater level of flexibility and reliability to our bonded stripline processing.

Quality Assurance

Our stringent program of in-process inspection results in high yields on the most complex circuits. We strictly monitor all production processes, and our up-front engineering, SPC and final inspection all help to ensure that products comply with customer-specified standards. Our quality system is currently registered to ISO 9001:2000 and works to the standards of IPC 6018 unless otherwise indicated by customer.

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