development
TITLE 1 Development of EMC Noise Solution Filter Parts for Electronic Equipment
SUBSIDY NAME Law Concerning Creative Business Activity of Small and Medium Enterprises
CORPORATE NAME Kanagawa Pref. Commerce and Industry Department for New Industry and Technology
DATE OF APPROVAL September 27th, 1999
DEVELOPMENT PERIOD October 1st, 1999 to September 26st, 2002
* Purpose and Contents of Research and Development

As high speed (frequency) correspondence movement of elements must be parallel with the high frequency of the LSI and IC itself of the computer clock, are being delayed.

There is no filter prevention that even the high frequency wave like few 3 to few 5 degrees was made and inserted into the IC that treats to the high speed pulse signal even if it limits to only EMC countermeasure.

Realization of high isolation filter prevention noise in wideband is difficult by the use of current coil parts (chip type) known as having high Q. Thereupon,
* Result of Research and Development

As to the methods of executing solution of EMI/EMC problem by broadband decoupling (higher harmonic prevention) of the DC power source provided in the semiconductor, its practical use in making steady progress in Japan from the last part of last year (2001). The 6 GHz version "POWERFIL" was adopted in the media converter for 1 Gbps Ethernet and mass production has started from spring of this year. Also, inquiries from abroad are coming.

As to the development of 12 GHz version as single parts, since it was capable of demonstrating that the band up to 12 GHz was extended in the first trial manufacture, it has entered the stage of producing prototype.

As the business target for the year 2002, a semi-mass production trial is to be conducted while proceeding the application development, and promote it's undertaking in Taiwan. Moreover, as the target of research and development, the fundamental experiment will be started with outlook on development of the next 20 GHz.
TITLE 2 Development of Mass Production of EMC Noise Solution Filter Parts for Ultrawideband Electronic Power
SUBSIDY NAME The New Technical Development Subsidy (No. 64 .2000)
CORPORATE NAME The New Technical Development Foundation
DATE OF APPROVAL January 28th, 2000
DEVELOPMENT PERIOD January 7th, 2000 to January 6th 2001
* Purpose and Contents of Research and Development

In order to solve the EMI (electromagnetism) of the digital electro magnetic circuit (device) represented for personal computers, the most effective solution is to cut off the high frequency harmonics (noise) that propagates the tracks (circuit) where it is supplied to the semiconductors.

This case is becoming a wonder among the digital engineers in recent years. In fact, only filters like few MHz -2GHz is being marketed.

By improving the [KRFM COILFIL] for the final step amplifier for digital cellular phone, and by reconstituting the 3 terminals of T type filter, there is possibility to actualize filtering exceeding 10 GHz. In order to produce it as actual parts, we are now underdevelopment for mounting it to the board by packaging.
The foundation development in order to actualize the 3 movement element T type filter with the use of element (L, C) which enables to eliminate the EMI (Electromagnetic Interference) which band exceeds more than 100KHz-10GHz.(High Frequency band)
* Result of Research and Development

Funds are the most problem, which arose for the commercialization (mass production) for future [POWERFIL] for using 2 [COILFILS].

The experimental mass production for [POWEFRILTER] is aimed to start on July in Taiwan.
Prototype machine for [COILFIL] had been made in April in Japan, and it will be transferred to Taiwan for improvement.
TITLE 3 Development of "Micro Type Switch and Attenuator Which ca Be Used for Microwave Band" By Using COILFIL
SUBSIDY NAME Kanagawa Prefecture Basic Industrial Promotion Subsidy (2000) Business Subsidy by Small and Medium Enterprises for Support of Development for New Products
CORPORATE NAME Kanagawa Prefecture Commerce and Industry Work Division,Industrial Promotion Section
DATE OF APPROVAL August 1st, 2000
DEVELOPMENT PERIOD July 28th, 2000 to March 31st, 2001
* Purpose and Contents of Research and Development

In the conventional RF switch (by leading manufacturer) which was pursued centering on GaAsFET, the more the passing signal approached the microwave band, there arose problem of high isolation (attenuation) over 30dB) not being able to be taken upon switch off in the mold package where lead frame was used. This problem was resolved with the use of the PIN diode, a resonant element by suggestion of design of a new circuit configuration.

Even if RF signal resulted in a microwave band and the package itself was included, it is capable of actualizing a high isolation for resonance. Moreover, comparative study was made for the conventional model PIN diode switch (attenuator) made from the SSOP-8type package an the resonant switch of the newly developed SSOP-8 type and on trial basis, it has been verified that to the RF characteristic, this development products is more superior in the aspect of cost and mass production.
* Result of Research and Development

By configuration (newly designing) the resonant circuit incorporated with its permittivity in addition to the Hybrid IC resin package, that combines the PIN diode (which does not easily radiate distortion to high power signal in comparison with the GaAs switch) and the passive elements for microwave band formed with thin-film technology, high isolation (attenuation) to microwave band (over-30dB) was actualized. Furthermore, a super-low distortion was suggested as of the newly designed resonant circuit and the RF switch/Attenuator, which is high voltage and low priced than the GaAs switch which is easily affected to static electricity (ESD). Moreover, with "COILFIL" being capable being used until the microwave band and being downsized to the 1608, 1005 size, method to use the single micro filter and power filter I low cost version microwave band switch and attenuator used as Hybrid's internal or external parts was also suggested.

By adopting this newly conceived idea of circuit, it will no longer be "whenever the radio system changes, used parts are thrown away and production method is modified", since the parts and equipment currently used can be reused and the production of high frequency wave (microwave) responding parts currently used could be actualized. If PIN diode is used instead of the GaAs (gallium arsenide), from the point of solution for the environmental issue in the production line factory; "earth friendly" production line can be actualized.
TITLE 4 Development of "Switch/Attenuator (SW/ATT) Hybrid IC for Resonant Microwave band" Using Pin Diode
SUBSIDY NAME Research and Development Subsidy 2000
CORPORATE NAME Incorporated Foundation Sanwa Venture Promotion Fund
DATE OF APPROVAL January 1th, 2001
DEVELOPMENT PERIOD December 1th, 2000 to December 31th, 2001
* Purpose and Contents of Research and Development

Every year, the frequency of multimedia communication including IMT-2000 radio access of the third generation mobile radio communication continue to rise, and the present semi microwave band of the current PHS and digital cellular phone, the ITS (Intelligent transport System) and AWA (Advanced Wireless Access Systems) of the microwave bad are starting to be put to practical use. Switch/Attenuator of the microwave band Hybrid IC used in these radio equipment re actualized with the newly designed leadless package (PKG).

Switch/Attenuator (SA/ATT) Hybrid IC for the resonant microwave band used with the designed PIN diode, is no longer a switch composed with GaAsFET and attenuator, but is a Hybrid IC in the microwave band zone, which can be made without requiring a large-scale semiconductor equipment. Engineers having sufficient knowledge of the RF property of the discrete component (passive element and active device) have gathered and designed the Hybrid technology structure. Efficient (highly accurate) high frequency circuit that could be manufactured at low cost can be actualized. Moreover, when manufactured by Hybrid technology, there is no need for entry of big capitals for manufacturing.
* Result of Research and Development

However, due to practical use of our main W-CDDMA (IMT2000) of this development being delayed and demand for boosters being postponed for about one year, survey was made whether other development items existed, and as a result, it was found that to the higher frequency (10 GHz9, development of switch/attenuator had already existed. Trial manufacture decided to be performed at the place where mass production was capable. With this, trial manufacture was requested too the Hybrid department of Taiwan EMS. The completion schedule was extended for about 5 months.
TITLE 5 Practical Use of the New Design of "BIAS POWERFIL" Used for High Speed (Transmission) Semiconductor
SUBSIDY NAME Advanced Technology Style Research and Development
CORPORATE NAME Telecommunications Advancements Organization (TAO)
DATE OF APPROVAL September 26th, 2001
DEVELOPMENT PERIOD June 1st, 2000 to May 31st, 2003
* Purpose and Contents of Research and Development

The more the frequency band extends and the higher the frequency gets, the more response to the broadband in the filter circuit of passive elements become incapable, and are causing various problems including the EMC problem. Then an "ultrawideband prevention filter" which cold prevent between the 7th and 9th higher harmonics is required. Moreover, in order to make it usable by any applicable parts, it must be developed as a DC power source circuit filter in one package.

Power supply filter from 100kHz to 5800MHz (-20B Bandwidth) band has already been developed.
Development for increasing the band for these parts newly to 12 GHz as well as development of valuation for the application to be verified is being under development stage.
* Result of Research and Development

As to the methods of executing solution of EMI/EMC problem by broadband decoupling (higher harmonic prevention) of the DC power source provided in the semiconductor, its practical use in making steady progress in Japan from the last part of last year (2001). The 6 GHz version "POWERFIL" was adopted in the media converter for 1 Gbps Ethernet and mass production has started from spring of this year. Also, inquiries from abroad are coming.

As to the development of 12 GHz version as single parts, since it was capable of demonstrating that the band up to 12 GHz was extended in the first trial manufacture, it has entered the stage of producing prototype.

As the business target for the year 2002, a semi-mass production trial is to be conducted while proceeding the application development, and promote its undertaking in Taiwan. Moreover, as the target of research and development, the fundamental experiment will be started with outlook on development of the next 20 GHz.
TITLE 6 Development of "Resin Package for Ultrawideband (100kHz-12Ghz) Higher Harmonic Filter"
SUBSIDY NAME Subsidy for Yokohama City Small Business Research and Development (2001)
CORPORATE NAME Yokohama City Technology Support Center
DATE OF APPROVAL January 10th, 2002
DEVELOPMENT PERIOD October 1st to December 1st, 2001
* Purpose and Contents of Research and Development

From the start of establishment three years ago, with the gathering of high-frequency engineers, we have declared that the main causes of EMI/EMC were in the higher harmonic IC that produces the logic signal responding at high-speed, leaking to the (BIAS) power side, and in the higher harmonic that was radiated from other IC being picked from the power source.

This wideband power filter is completely different from those of the past, and is the method of isolating the power of IC (semiconductor) one by one, and although direct current is passed, alternating current is completely isolated, and moreover it is capable of passing heavy current. A discrete component capable of filtering to the broadband from 100KHz to 5.8GHz with just one filter is the first in the world. Domestic as well as International patent, PCT application in process. As to the PCT for not affiliated countries, it is under application. United States patent application in process.

This development targets for doing research and development concerning the package for developing parts until 12 GHz.
* Result of Research and Development
Although part of the plan was delayed due to scarce development budget, in the band from 100KHz to 5.8GHz, parts development "that will not superposition higher harmonic on the DC power source" and " that will not receive higher harmonic from the DC power source."

"KHLC series" is appraised as an EMC solution parts of the new digital circuit which did not exist in foreign countries until now, and installation on the CPU board of a high-speed server of Sun Micro Company and the ADSL equipment including the computer's LCD panel has been decided, and presently preparation for mass production is being forwarded. While the practical use of this KHLC series is being forwarded, the user's new demand to the next version goods is being directed the widebandnization performance to the X-band (10 GHz or more) and the BIAS filter (BIAS-TEE) which could respond to fiber optical equipments, such as the optical fiber cable is the development.
TITLE 7 Practical Use of New Harmonic Filter Design for Super High Speed Semiconductors
SUBSIDY NAME Public Trust Mizuho New Business Promotion Fund (2001)
CORPORATE NAME Mizuho Shintaku Bank Co., Ltd.
DATE OF APPROVAL February 25th, 2002
DEVELOPMENT PERIOD May 1st to December 31st, 2001
* Purpose and Contents of Research and Development

The development of passive (elements) parts, which is difficult of being commercialized unless mass production equipment is arranged, had been conducted only by the top-ranked corporation by means of investment plants. And because until now, filters which can only respond to narrow frequency band , when there is even little extension to the band, they were needed to be covered by several filters of different bands. Known to be that the solution of harmonics issue cannot be avoided for speed-up of transmission, and to be able to respond to the "super high-speed" of the future, It is difficult to find a solution if considered that it can be managed if parts count is increased to cover up the band.

The "DC Power Source Filter" manufactured by our company, is an "ultrawideband prevention filter with completely different idea that has been started on the DC power source by use of the Q inductor "COILFIL, and incorporating intentionally by building in the parasitic I (inductor) and C (condenser)" into the package, and is capable of filtering from the 7th to the 11th higher harmonics of digital signal clocks.

Because it is in one package, it is a part, which could be easily used by general circuit designers. Moreover, since it is a filter, which is directly placed into the power source, unlike personal computer that is controlled by the condition of the grounding, it is stable and produces definite effects.

Being adopted by the liquid crystal panel manufacturer aboard, and although it is still in the process of speeding up, adoption into the PC field and high-speed server is starting. This proves that the new idea of filters of DC power source filter of ultrawideband with band existing 5 GHz being used into the semiconductor power source, will be further expanding a power environment solution parts.
TITLE 8 Start-up of Joint Concern and Plant for Production of Higher Harmonic Prevention Fitter Electronic Parts for Power Supply
SUBSIDY NAME Yokohama City International Industrial Development Subsidy (2001)
CORPORATE NAME Incorporated Foundation Yokohama Industrial Promotion Public Corporation
DATE OF APPROVAL February 26th, 2002
DEVELOPMENT PERIOD April 1st, 2001 to December 31st, 2002
* Purpose and Contents of Research and Development

Various problems attendant upon speed up of digital electronic equipment including the computer, such as useless radio wave being emitted from the computer causing malfunction of electronic equipment were in the higher harmonic (semiconductor itself) of IC which produces the logic signal responding at high-speed, leaking to eh (BIAS) power side, and in the harmonic that was radiated from the other IC being picked from the power source. We have been demonstrating its causes from the start of our firm three years ago.

The COILFIL was developed from this thought as a part that "will not superposition higher harmonic to DC power Source" and "that will not receive higher harmonic from the DC power source". And the effective "POWERFIL""(KHLC series Power filter) in the band of 100 KHz to 5.8 GHz and which is a composite part combined with this COILFIL.

The use of this EMC solution parts of a new digital circuit has already been started in the foreign countries. Furthermore, while the practical use of this KHLC series is being forwarded, for the user's new demand to the next version goods is being directed to the development of parts which could actualize the broadband performance to the band (10GHz or more), and since with the development of BIAS filter capable of responding to the fiber optical electronic equipment, such as the optical fiber cable, this had been commenced and its research and trial manufacture is being proceeded.

As to the COILFIL in which evaluation trial have already been accomplished, Taiwan has been decided as the base for mass production plant from the viewpoint that it is the base of personal computer production of all over the world and is scheduled to complete its preparation for production by September of this year.

It is presently taking the form of consignment production, to secure the production foothold in Taiwan KRFM before the year 2002, together with the collaborator, including the venture business of Taiwan.



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