Abstract ▼

Purpose &Contents
○ This proposal proposes to develop piezoelectric transducer by constructing multilayer structure that uses thin and thick film process instead of commonly utilized bulk PZT. Such structure will significantly reduce operation voltage and power. Development of new materials requi

Purpose &Contents
○ This proposal proposes to develop piezoelectric transducer by constructing multilayer structure that uses thin and thick film process instead of commonly utilized bulk PZT. Such structure will significantly reduce operation voltage and power. Development of new materials required for matching and backing layers, improvement of their packing and integration, and coating technique of highly adhesive parylene will leverage into excellent performance and reliability
○ This proposal proposes to develop durability of the ultrasound diagnostic apparatus which can be used in harsh environments with property compared to the conventional one

Results
○ Fabrication of the piezoelectric element composed of 8 layers with internal electrodes for piezoelectric vibrator for low voltage of 40V or less driving
○ Construction of piezoelectric vibrators for 3.5 MHz and 7.5 MHz ultrasonic probes (series stacking structure and parallel array structure)
○ Fabrication of 3.5 MHz and 7.5 MHz ultrasonic probes by using a parallel array structure
○ Performance evaluation of wireless communication devices using by non pre-treatment, dry and wet pre-treatment
○ Evaluation of thin film adhesion of pre-treatment, dry and wet pre-treatment specimens
○ Optical transmittance of deposited parlyene film is over 94%
○ Thickness uniformity of deposited parlyene film +/- 5% or less

Expected Contribution
○ Piezoelectric multi-layer process technology for low-voltage driving will be used as a core technology for development of portable ultrasonic probes
○ Serial stacking and parallel array structure ultrasonic module design technology for 3.5 MHz and 7.5 MHz frequency can be applied to ultrasonic oscillation and receiving devices in other fields
○ Based on the patent about high-adhesive and high quality parylene coating method and applications, the related technology transfer fee can be generated
○ The independent development of parylene coating method monopolized by Special Coating Systems can drive import substitution effect and sales related industry

( 출처 : SUMMARY 4p )

목차 Contents

• 표지 ... 1
• 보고서 요약서 ... 2
• 요약문 ... 3
• SUMMARY ... 4
• CONTENTS ... 5
• 목차 ... 5
• 제1장. 연구개발과제의 개요 ... 6
• 1. 연구개발 목적 ... 6
• 2. 연구개발의 필요성 ... 6
• 3. 연구개발 범위 ... 7
• 제2장. 국내외 기술 개발 현황 ... 8
• 제3장. 연구 수행 내용 및 성과 ... 11
• 1. 다중 주파수 저전압 구동 초음파 모듈 개발 ... 11
• 2. 페릴렌 코팅 기술 개발 ... 64
• 제4장. 목표 달성도 및 관련 분야 기여도 ... 95
• 1. 목표 달성도 ... 95
• 2. 관련 분야 기여도 ... 97
• 제5장. 연구개발성과의 활용계획 ... 98
• 제6장. 연구 과정에서 수집한 해외 과학기술 정보 ... 98
• 제7장. 연구개발성과의 보안등급 ... 98
• 제8장. 국가과학기술종합정보시스템에 등록한 연구시설·장비 현황 ... 99
• 제9장. 연구개발과제 수행에 따른 연구실 등의 안전 조치 이행 실적 ... 99
• 제10장. 연구개발과제의 대표적 연구 실적 ... 99
• 제11장. 기타 사항 ... 100
• 제12장. 참고 문헌 ... 100
• 끝페이지 ... 101