This research presents an analysis of low cost fabrication techniques for embedded thin film resistors suitable for large volume needs. High frequency applications are targeted from 2 to 40GHz. Two approaches are taken. The first utilizes commercially available foils to produce resistors using only thermocompression bonding and wet chemical etching. The second method utilizes electroless plating with a modified plasma treatment to promote adhesion to organic materials. This process uses only chemical baths to form the thin films. Several RF and millimeter wave applications using these processes have been explored including terminations and attenuators. Accurate simulations of resistor performance were obtained using impedance boundaries in conjunction with the finite element method. Resistors created using the foil transfer process are measured to be accurate within 5% of these simulated values. Electroless values are currently accurate to around 40%, with research underway expected to improve this to around 10%.

The purpose of the thesis is to investigate and the corrosion resistance of the masking materials on quartz substrates in deep chemical etching using NH4HF2 solutions. Masking materials, including Cr/Au, PLA-900 position photoresist, and NPR-2500F negative photoresist were used for test. In the deep etching of the quartz substrates, we observed changes of adhesion of the masking materials. The process parameters obtained from deep etching were used to fabricate quartz resonators. Before etch, the etch masks using Cr/Au thin films were deposited on both sides of the quartz substrates. Cr/Au masking materials were stripped after the etching, and Cr/Au electrodes were deposited by sputtering on both sides of quartz substrates. Finally, the quartz resonators were obtained by dicing. Passive devices, including capacitors and inductors were also fabricated and measured for integrated passive devices, such as band-pass filters.

The M&A of Yageo and Philips¡¦s global passive components department in 2000 is a well-known failure case. This study investigates this 18.8 billion M&A case using business evaluation in order to explore its synergy and whether the offer price is reasonable. Contrary to media reports, this study found that the price was somehow high but reasonable during the period. Research shows taking out this M&A deal will erode shareholders¡¦ interest by NTD$31 billion. Yageo¡¦s current state of core business value is analyzed to find that Yageo¡¦s value increases at least NTD$40 billion. A decade after the M&A, Orion ¡V reinvested by Yageo Chairman Chen Taiming - announced to obtain 100% of Yageo¡¦s equity of NTD$16.1 per share in early April, 2011. Such action indicates Chairman Chen foresaw potential profitability in Yageo. In addition, the previous M&A of Philips Passive Components Division has a great influence in recent growth and points out that the M&A decision are not wrong. The findings of the study show that post-merger integration is implemented properly can gain positive benefits for shareholders through the M&A of Philips Passive Components Division.

Abstract As technology advances, new computer, telecommunications and consumer electronic products are constantly being introduced, giving consumers more choice than in the past. However, fluctuations in the business cycle mean that competitors fight to gain market share and this often results in an oversupply of 3C products and a decline in prices. Taiwan's notebook industry is world-famous, but because of pressure from foreign companies profit margins are relatively low. The notebook producers try to control the price of the components by putting pressure on component makers. This leads to a price war between the suppliers and even the winners of this war still have to cut prices on a quarterly basis. Technology, consumer preferences and prices are all changing rapidly. Component agents are being squeezed between suppliers, who want to maintain a fixed price, and customers who want prices to be cut. This has reduced profit margins. This research focuses on how passive component agents change in response to this situation and meet the demands for higher quality, better service, lower prices and faster delivery. The case study concerns Company A, which originally acted solely as a passive component agent. It examines how, between 2002-2010, the company restructured its business and supply chain and developed its own-brand components to gain key competitive advantage and establish an operating platform. This study researched the relevant literature and information concerning Company A to produce a summary of the company's transition strategy and how it was implemented. It is hoped that this research will provide a reference for other agents which are going through a similar transition. Keywords: passive components, OEM, own-brand, competitive advantage

Proton beam radiotherapy is an emerging treatment tool for cancer. Its basic principle is to use a high-energy proton beam to deposit energy in a tumor to kill the cancer cells while sparing the surrounding healthy tissues. The therapeutic proton beam can be either a broad beam or a narrow beam. In this research, we mainly focused on the design and simulation of the broad beam produced by a passive double-scattering system in a treatment nozzle. The NEU codes package is a specialized design tool for a passive double-scattering system in proton beam radiotherapy. MCNPX is a general-purpose Monte Carlo radiation transport code. In this research, we used the NEU codes package to design a passive double-scattering system, and we used MCNPX to simulate the transport of protons in the nozzle and a water phantom. We used "mcnp_pstudy" script to create successive input files for different steps in a range modulation wheel for SOBP to overcome the difficulty that MCNPX cannot be used to simulate dynamic geometries. We used "merge_mctal" script, "gridconv" code, and "VB script embedded in Excel" to process the simulation results. We also invoked the plot command of MCNPX to draw the fluence and dose distributions in the water phantom in the form of two-dimensional curves or color contour plots. The simulation results, such as SOBP and transverse dose distribution from MCNPX are basically consistent with the expected results fulfilling the design aim. We concluded that NEU is a powerful design tool for a double-scattering system in a proton therapy nozzle, and MCNPX can be applied successfully in the field of proton beam radiotherapy.

There are many Sciaenid species found in coastal water of Taiwan, and most of them can generate sound in the spawning season. However due to overfishing, the populations of these high economic value fishes have been greatly decreased. To study and protect Sciaenid, whose habitat should be identified to set up seasonal protection zones. In this study, easy and low cost measure by using passive sonar is proposed to map the habitat in the field. Measurement and analysis of Sciaenid¡¦s sound were performed to investigate its acoustic characteristic, and frequency range was found to be 350 to 1,500 Hz. The statistical distribution of sound levels can be built up by enough field measurement, therefore source levels can be defined in this method. In the addition, the transmission loss of in site shallow water was studied to compute the real decaying factor (TL=n*logR) of the survey site. By using 3 sonobuoys, with known source level distribution and transmission loss, the distance of possible habitat can then be inverted. Through enough measurements, the map of coastal habitat of Sciaenid can be generated with efficiency and accuracy.

ABSTRACT The thesis focuses on aluminum porous board used in noise reduction. The experiment evaluates propagation of sound wave and examines acoustic characteristics of aluminum porous board when sound wave impinging on the aluminum porous board. Also, the material properties and acoustic properties of aluminum porous board are analyzed to help further understanding of aluminum porous board. Biot`s poroelastic theory is essentially used to obtain the equation of motion of the elastic porous material, following the calculation of sound transmission loss via application of appropriate boundary condition. Supported by the theoretical analysis and measured data, the result in the thesis shows that aluminum porous board can provide well noise reduction throughout all frequency ranges. In addition, aluminum porous board lined with multi-panel structure, through analysis on sound transmission loss, proved better effect than single-paneled aluminum porous board in noise reducing. The difference is about 5dB in low frequency and more than 10dB in high frequency. The studying of material mechanical properties of aluminum porous board is also included in the thesis, According to the database obtained in this thesis, acoustic properties and material properties of aluminum porous board can be worked out to estimate suitable aluminum porous board applied in noise reduction. The analysis suggests if higher noise reduction is required, one needs to thicken the aluminum porous board, or to increase density and Young`s modulus of the material, which results improvement in high frequency; but no effect in low frequency. Moreover, increasing material thickness and density will shift the resonance frequency to lower value; in addition, increasing Young`s modulus will move the resonance frequency to higher value.

In order to adapt with the rapidly changing industrial environment and improve the efficiency of management, enterprise needs to re-engineer their information system. The whole process of business reengineering is induced by motivation of reengineering. After that, enterprise needs to select a reengineering strategy and transform into the executive plan to start the rest part. The information system reengineering process follows the same pathway as process of business reengineering. The wrong strategy might lead the wrong execution, which cause failure of the whole reengineering. In this research, author tried to build a model to explain how reengineering motivation interacts with the choice of reengineering strategy, and verifies the model by real case chosen from Passive Component Electronic Industry. The outcome might be helpful for the enterprises whose information system reengineering is going to take place.

This study investigated the electro-optic characteristics of VAN ¡]vertical-alignment nematic¡^liquid crystal device in passive mode, and tried to present the advantage of high contrast ratio which belongs to VA mode. The experiment consisted of three parts: 1. Change different cell thickness¡]d = 12£gm¡B6£gm¡B4.9£gm¡^. 2. Chang LC with the different value of dielectric¡]£G£`= -3.7¡B-6.1¡^. 3. Chang LC with different refraction anisotropy¡]£Gn = 0.15¡B0.078¡^. We drive those samples with different number of duty in passive mode, and to measure the electro-optic characteristics, including VT curve, response time, and contrast ratio. We knew that STN¡]Super Twist Nematic LCD¡^has the drawbacks of lower contrast ratio, higher operational voltage and slower response time within higher duty in passive mode. And the same problem comes with VAN in passive-drive mode, although it is said VAN has the high performance of contrast ratio. The contrast ratio is worse then STN when driving in higher duty. As a result of VAN is kind of ECB mode, its transparency has a big matter with light retardation. We find that in the same condition of driving duty, the value of cell gap or the £Gn become larger, the value of the sharpness and the contrast ratio become larger.

This thesis is mainly composed of two parts. The first part is to introduce the planar transformer-based circuits and their applications. The mixed-mode S parameters and the grounding effects for planar transformers are discussed. A physical model has been developed for modeling the planar transformers. In the second part, a new coil winding technique for planar transformers has been presented to realize a high-efficiency planar transformer with arbitrary turn ratio for power-split/combine and phase-shift applications. Especially, the power-split/combine architecture based on a planar transformer of cellular shape is first presented in this thesis, enabling various kinds of passive components to be widely realized using the integrated passive device processes. As an example, this thesis proposes a design procedure for high-efficiency balun component. Firstly, design a high Q transformer that considers the load impedance effects. Secondly, design the ground reference for un-balanced signal on the virtual ground symmetry axis for balanced signals. Thirdly, design impedance matching networks for minimizing un-balanced and balanced port return losses. Then, a high performance planar transformer-based balun design can be done.