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Improved Q Factor with Thick Film Processing!
Commercializing 0603 Size Film Type Chip Inductor LQP Series for High Frequency Circuits

May 28, 2009

Murata Manufacturing Co., Ltd.
President/ Statutory Representative Director: Tsuneo Murata

Overview

Murata Manufacturing Co., Ltd. has commercialized 0.6×0.3×0.3mm (0603 size) film type chip inductor optimal for the use in high frequency circuits for small portable equipment such as mobile phones.

We have succeeded in commercializing 0603 size inductor with the highest Q factor^※1 in the industry. This was made possible by reevaluating the internal structure and forming optimal coil to create an ultra-small size using Murata's own latest microfabrication technology.

We have opted for thick film processing among various chip inductor processes including winding and multilayering. We advanced this thick film processing one step further to achieve higher performance.

We have completed 0603 size High Q type chip inductor series for the models ranging between 0.6nH and 120nH.
The inductance deviation is at ±0.2nH (±5%). We will continue to release additional low deviation models.

Background

Currently, there is a trend for the number of components used in equipment to increase as small mobile communication equipment, such as mobile phones, become more multi-featured and high performing. Meanwhile, demands for smaller and lower-profile chip inductors are also increasing in conjunction with increasingly smaller equipment sizes. High Q factor in the high frequency range to increase the sensitivity of wireless circuits is in demand for high frequency applications in small mobile communication equipment, therefore; we were urged to meet our customer requirements for film type chip inductors simultaneously having small size and high Q factor.

Features

• Introducing thick film processing: Murata is the only manufacturer to have introduced thick film processing for inductors used in high frequency circuits, to achieve small size and high Q factor simultaneously.
• Ultra-small and low profile: At 0.6×0.3×0.3mm
• Highest Q factor in the industry for 0603 size models: Approximately 10% more Q factor compared with the previous models
• Low deviation: Inductance deviations are ±0.2nH (0.6～3.9nH) and ±5% (4.3nH～56nH).
• High frequency stability: Achieves higher Q factor and more stable inductance ranging into high frequency compared with our previous 0603 size models.
• Inductance value: 0.6～56nH (68～120nH models have already been commerciallized)

Applications

• High frequency modules for mobile phones (PA/ANT/VCO/SAW, etc.)
• Mobile phones (GSM/CDMA/PDC, etc.)
• Digital TV tuner modules
• W-LAN modules
• Bluetooth^®modules
• High frequency circuits in general

Terminology

Part Number

LQP03TN (1) (2) (3) (4)
(The latter section varies according to properties. The following properties are represented by (1) (2) (3) (4).
(1) Inductance (2) Inductance Deviation symbol (3) External electrode specification
(4) Taping specificatio)

Characteristics

Part Number and Specification

For more information, please click here.

External Size

Production

20 million units per month in June 2009

Sample Price

10 Yen/per unit

Patents

11 patents (2 patents pending)

Bluetooth^®is a trademark owned by Bluetooth SIG, Inc, USA.

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