Passive Components: MMI 300 Series
Spiral Inductors
Description
The MicroMetrics MMI 300 series of
Spiral Inductors are formed by
photolithography and plating tech-
niques on quartz substrates. They
eliminate the need for hand forming
and ”staking“ of coil in hybrid circuits.
They provide uniformity, durability
and repeatability in circuit fabrication.
The coils are polyimide coated to pro-
tect 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 conduc-
tive or non conductive epoxies, and
wire bonded with gold wire or ribbon
by thermocompression bonding.
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.
82
Passive
Components
Features
• No Need for ”Staking“ Coil
• Passivated Protective Coating Over Coil
• Dimensional Uniformity
• Planar Solid Structure Coil
Packaging
• Chip
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
Chip Outline
