MMI304

Passive Components Passive Components: MMI 300 Series Spiral Inductors Description The MicroMetrics MMI 300 series of Spiral Inductors are formed by photolithography and plating techniques on quartz substrates. They eliminate the need for hand forming and ”staking“ of coil in hybrid circuits. Features • No Need for ”Staking“ Coil • Passivated Protective Coating Over Coil • Dimensional Uniformity • Planar Solid Structure Coil The coils are polyimide coated to protect from ambient contaminants, and to eliminate the need for conformal coating. Quartz substrates are rugged and reduce dielectric losses. Chips may be bonded using either conductive or non conductive epoxies, and wire bonded with gold wire or ribbon by thermocompression bonding. Packaging • Chip Chip Outline INSIDE DIAMETER, di = .0094 ± .0002 di They provide uniformity, durability and repeatability in circuit fabrication. Applications The Spiral Inductors are ideally suited for bias injection into oscillators, amplifiers and microwave switches (bias tees). They can also be used to bias tuning varactors, PIN diodes, transistors and monolithic circuits. A GOLD BONDING PADS .003 x .003 B EQUIVALENT CIRCUIT Ls C Rs Dimensions in Inches DIMENSIONS: INCHES DIM “A” MAX DIM “B” MAX DIM “C” MAX Part Number .040 .045 .050 .065 .040 .045 .050 .065 .012 .012 .012 .012 MMI301 MMI302 MMI303 MMI304 Cs 82 MicroMetrics, Inc. 136 Harvey Road, Building C, Londonderry, NH 03053 Voice: 603-641-3800, Fax: 603-641-3500, Internet: www.micrometrics.com, E-mail: serv@micrometrics.com Electrical Characteristics # of Turns Inductance Ls(nH) MIN/TYP/MAX 51/2 71/2 91/2 121/2 12/15/18 24/30/36 42/50/58 67/75/83 Series Resistance,Rs DC 1GHz 2.8 4.0 6.0 8.5 4.5 6.0 8.5 15 Q At Ft MIN/MAX Test Frequency,Ft (GHz) Resonant Frequency,Fr (GHz) Part Number 25/30 26/30 23/27 20/24 1.5 1.2 1.0 1.0 6.4 5.3 4.2 3.0 MMI301 MMI302 MMI303 MMI304 Passive Components Passive Components: MMI 300 Series Notes: Ls, Rs and Fr data measured using an HP 8510 network analyzer. Inductor cross section is approximately 16 microns wide and 5 microns thick. Maxium current rating: 250 mA. Other values available upon request. MicroMetrics, Inc. 136 Harvey Road, Building C, Londonderry, NH 03053 Voice: 603-641-3800, Fax: 603-641-3500, Internet: www.micrometrics.com, E-mail: serv@micrometrics.com 83