[특허]Solar cell with semiconductor particles and method of fabrication

Solar cell with semiconductor particles and method of fabrication 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H01L-031/02 H01L-021/312
출원번호	US-0437278 (1974-01-28)
발명자 / 주소	Wakefield Gene Felix (Richardson TX)
출원인 / 주소	Texas Instruments Incorporated (Dallas TX 02)
인용정보	피인용 횟수 : 46 인용 특허 : 0

초록 ▼

Generally spherical shaped semiconductor particles comprising an inner core of one conductivity type and a thin peripheral layer of opposite conductivity type are produced in a fluidized bed reactor. Silicon particles introduced into the reactor are built up to a desired nominal diameter by vapor deposition from a silicon and dopant containing atmosphere introduced into the reactor; by changing the dopant constituent, the outer peripheral layer is then deposited. One use of such particles is in fabrication of a solar cell, wherein an array of the particles is located on an insulating sheet and overlying conductive layers, insulated from each other, make contact respectively with the peripheral layers and with areas of the core regions, exposed by etching. The particles also may be used to fabricate semiconductor devices, e.g., by use of orientation dependent etches to define flat surfaces on the particles parallel to specific crystallographic planes. Use of other semiconductor materials, e.g., germanium and cadmium slfide also is described.

대표청구항 ▼

A method of manufacturing a solar cell comprising setting a multiplicity of small semiconductor particles into a surface of a first insulating support layer to form a predetermined array of said particles partially embedded in said layer, said semiconductor particles each comprising an inner region of one conductivity type and an outer vapor deposited coating of opposite conductivity type; depositing a layer of conductive material overlying said first insulating layer and conforming to the surface contours of the said opposite conductivity type coatings of said particles; forming a first covering of insulating material over said first conductive layer between said particles to leave portions of said particles projecting from said insulating material; removing areas of said conductive layer and of said coating of opposite conductivity type from said projecting portions of said semiconductor particles to expose areas of said one conductivity type of said particles; forming a further covering of insulating material over said first covering of insulating material to leave smaller areas of said one conductivity type of said particles projecting from said further covering of insulating material; and depositing conductive material on said further covering of insulating material to conform to the surface contours of said smaller areas of said particles to selectively interconnect the said one conductivity type regions of said particles. A solar cell comprising a multiplicity of semiconductor photodiodes comprising semiconductor particles partially embedded in a substantially flat surface of a first support layer of insulating material to form a predetermined array of said particles, said semiconductor particles each comprising an inner region of one conductivity type and an outer epitaxial layer of opposite conductivity type; portions of said semiconductor particles remote from said insulating layer having surface portions thereof removed to expose an area of the inner region surrounded by an area of said outer epitaxial layer; an electrically conductive layer on said insulating layer conforming to the contour of and electrically contacting the outer surfaces of the epitaxial layers of said semiconductor particles and providing a substantially flat surface between said particles; a second insulating material layer overlying said first conductive layer and said areas of said outer epitaxial layers of said particles to selectively expose areas of said regions of one conductivity type of said semiconductor particles, said exposed areas projecting from said third insulating material layer; and a second electrically conductive layer on said second insulating layer conforming to the contours of and selectively interconnecting said exposed areas of said projecting regions of one conductivity type of said semiconductor particles.

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
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저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

연합인증

Solar cell with semiconductor particles and method of fabrication 원문보기

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Solar cell with semiconductor particles and method of fabrication 원문보기

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이 특허를 인용한 특허 (46)

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