Recent Developments in Acoustic Charge Transport Devices

Hoskins, M.J.; Hunsinger, B.J.

doi:10.1109/ultsym.1986.198780

Cited by 24 publications

(7 citation statements)

References 13 publications

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“…ACT was observed 25 years ago (32). Transverse ACT filters were developed in the eighties (33,34) and are in research still (35). Due to severe technological difficulties causing a high price no success in the civilian commercial market was achieved.…”

Section: Js (W)hf-{l Dt= Max If S0(t)=h(-t)=h(-x/v)mentioning

confidence: 99%

Saw-Based Radio Sensor and Communication Techniques

Seifert

Weigel²

1997

27th European Microwave Conference, 1997

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Surface acoustic waves can be generated at the free surface of an elastic solid. This phenomenon has been exploited for electronic analog signal processing over the past 30 years, with the development of a host of devices and systems for consumer, commercial and military applications running at a some hundred million dollar annual rate. The objective of this paper is to provide an overview of the latest developments in the surface acoustic wave (SAW) field and to identify upcoming applications in remote sensing and communications. It. is intended to address some of the key issues in the successful design and manufacture of SAW devices and to discuss the operating principles from a microwave design viewpoint.

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Section: Js (W)hf-{l Dt= Max If S0(t)=h(-t)=h(-x/v)mentioning

confidence: 99%

Saw-Based Radio Sensor and Communication Techniques

Seifert

Weigel²

1997

27th European Microwave Conference, 1997

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“…Early key papers on SAW devices areto be found in [21]- [23]. Also, other review papers deal with SAW filters [24], components for electronic warfare receivers [25], SAW-device applications [26]- [29], SAW resonators [30]- [32], SAW materials [33], SAW waveguides [34], SAW waves and acoustoelectric interactions [35], [36], SAW reflective array structures [37], acoustooptic Bragg modulators for integrated optic communications [38], SAW-based fixed and adaptive filtering on GaAs [39], hybrid programmable transversal filters [40], and SAW-based acoustic charge transport (ACT) processes and structures on GaAs [41]. Principles of SBAW propagation and devices are contained in [42] and [43].…”

Section: B Aim Of This Papermentioning

confidence: 99%

“…SAW-based acoustic charge transfer (ACT) devices on epitaxial GaAs have been under intense development in recent years for applications such as to programmable tapped delay lines [277], high-speed sampling, parallel-serial storage, and convolvers [41], [278]. ACT convolver operation is reported with a time-bandwidth product TB = 400, with B = 160 MHz, together with a spurious-free dynamic range of 37 dB and signal-to-noise ratio SIN = 37 dB [279].…”

Section: B Acoustic Charge Transfer (Act) Devicesmentioning

confidence: 99%

Applications of surface acoustic and shallow bulk acoustic wave devices

Campbell

1989

Proc. IEEE

111

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Applications of surface acoustic wave (SA W) and shallow bulk acoustic wave (SBA W) devices are reviewed. SA W-device coverage includes delay lines and filters operating at selected frequencies in the range from about 10 MHz to 11 GHz, modeling with singlecrystal piezoelectrics and layered structures, resonators and lowloss filters, comb filters and multiplexers, antenna duplexers, harmonic devices, chirp filters for pulse compression, coding with fixed and programmable transversal filters, Barker and quadraphase coding, adaptive filters, acoustic and acoustoelectric convolvers and correia tors for radar, spread spectrum, and packet radio, acoustooptic processors for Bragg modulation and spectrum analysis, real-time Fourier-transform, and cepstrum processors for radar and sonar, compressive receivers, Nyquist filters for microwave digital radio, clock-recovery filters for optical fiber communications, fixed-, tunable-, and multimode-oscillators, and frequency synthesizers, acoustic charge transport (ACT), and other SA W devices for signal processing on gallium arsenide, SA W sensors, and scanning acoustic microscopy. SBA W-devices applications include gigahertz delay lines, surface transverse wave resonators employing energy-trapping gratings, as well as oscillators with enhanced performance and capability.

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“…In 1982, Hoskins et al [7] demonstrated the first successful acoustic charge transfer (ACT) device. After that, the primary development of ACT technology was mainly focused on the device architecture used to achieve electrical transfer channel isolation [8]. In 1987,…”

Section: Acoustic Charge Transfer Devicesmentioning

confidence: 99%

“…Hoskins and Hunsinger [8] reviewed the development of ACT devices at that time. They discussed four ACT device functional capabilities and demonstrated the signal processing performance of an ACT delay line, transversal filter, and a spread spectrum correlator.…”

Section: Acoustic Charge Transfer Devicesmentioning

confidence: 99%

Piezoelectric coupling constant in epitaxial Mg-doped GaN and design of pentacene acoustic charge transfer devices

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CHAPTER 1. INTRODUCTION 1 1.1 Surface acoustic wave devices 1 1.2 Acoustic charge transfer devices 2 1.3 Thesis organization 3 CHAPTER 2. BASICS OF SURFACE ACOUSTIC WAVES AND PIEZOELECTRICITY 5 2.1 Surface acoustic wave in a non-piezoelectric elastic solid medium 5 2.1.1 Wave equations 5 2.1.2 Surface acoustic wave 6 2.2 Surface acoustic wave in a piezoelectric elastic solid medium 8 2.3 Basics of interdigital transducers 9 2.3.1 The structure of a typical interdigital transducer 9 2.3.2 The principle of interdigital transducer operation 9 2.3.3 Electrode reflections of an IDT 11 CHAPTER 3. THE FUNDAMENTALS OF ACT DEVICES 13 3.1 Basic ACT operations 3.2 SAW power requirements 3.3 Structures of charge transport channels in ACT devices iii CHAPTER 4. PIEZOELECTRIC COUPLING CONSTANT IN EPITAXIAL Mg-DOPED GaN 4.1 Introduction 4.2 Experiment 20 4.2.1 Design of SAW filters 4.2.2 Fabrication of SAW filters 4.2.3 Measurement 4.3 Results and Discussion 23 4.4 Conclusions CHAPTER 5. DESIGN OF PENTACENE ACOUSTIC CHARGE TRANSFER DEVICES 5.1 Introduction 5.2 Design of acoustic charge transfer devices using pentacene 31 5.3 Design of a parabolic SAW beam compressor 35 5.4 Design of masks 5.5 Distillation of pentacene 40 5.5.1 The reasons of pentacene distillation 40 5.5.2 The design of a temperature gradient furnace 40 5.5.3 Operation of the furnace 43 5.6 Fabrication of pentacene ACT devices 44

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Recent Developments in Acoustic Charge Transport Devices

Cited by 24 publications

References 13 publications

Saw-Based Radio Sensor and Communication Techniques

Saw-Based Radio Sensor and Communication Techniques

Applications of surface acoustic and shallow bulk acoustic wave devices

Piezoelectric coupling constant in epitaxial Mg-doped GaN and design of pentacene acoustic charge transfer devices

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