[특허]Reverse optical mastering for data storage disk replicas

Reverse optical mastering for data storage disk replicas 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G11B-007/24
출원번호	US-0243939 (2011-09-23)
등록번호	US-RE44633 (2013-12-10)
발명자 / 주소	Edwards, Jathan D. Kerfeld, Donald J.
출원인 / 주소	Legger Col. A.B. LLC
대리인 / 주소	Christensen O'Connor Johnson Kindness PLLC
인용정보	피인용 횟수 : 0 인용 특허 : 63

초록 ▼

A data storage master disk and method of making a data storage master disk. The data storage disk master is for use in a data storage disk replication process. The data storage disk molding processes produces replica disks having a surface relief pattern with replica lands and replica grooves. The method includes providing a master substrate. The master substrate is at least partially covered with a layer of photosensitive material. A surface relief pattern having master lands and master grooves is recorded in the data storage disk master, including the steps of exposing and developing the photosensitive material is controlled to form master grooves extending down to a substrate interface between the master substrate and the layer of photosensitive material, such that the width of the master grooves at the substrate interface corresponds to a desired width of the replica lands.

대표청구항 ▼

1. A replica disk comprising: a replica substrate including a first major surface and a second major surface, the first major surface including a surface pattern defined by lands and grooves,wherein the surface pattern defines a track pitch that is less than 425 nanometers,wherein tops of the lands define widths between 100 nanometers and 200 nanometers, andwherein the grooves define depths less than 120 nanometers. 2. The replica disk of claim 1, wherein the depths of the grooves are greater than 20 nanometers. 3. The replica disk of claim 1, wherein the depths of the grooves are less than 40 nanometers. 4. The replica disk of claim 3, wherein the depths of the grooves are greater than 20 nanometers. 5. The replica disk of claim 4, wherein the widths of the tops of the lands are between 140 nanometers and 180 nanometers. 6. The replica disk of claim 3, wherein the widths of the tops of the lands are between 140 nanometers and 180 nanometers. 7. The replica disk of claim 1, wherein the widths of the tops of the lands are between 140 nanometers and 180 nanometers. 8. The replica disk of claim 5, wherein the widths of the tops of the lands are greater than 25 percent of the track pitch. 9. The replica disk of claim 8, wherein the widths of the tops of the lands are greater than 35 percent of the track pitch. 10. The replica disk of claim 6, wherein the widths of the tops of the lands are greater than 25 percent of the track pitch. 11. The replica disk of claim 10, wherein the widths of the tops of the lands are greater than 35 percent of the track pitch. 12. The replica disk of claim 7, wherein the widths of the tops of the lands are greater than 25 percent of the track pitch. 13. The replica disk of claim 12, wherein the widths of the tops of the lands are greater than 35 percent of the track pitch. 14. The replica disk of claim 1, wherein the tops of the lands are substantially flat and coplanar. 15. The replica disk of claim 1, wherein the depths of the grooves are less than 80 nanometers. 16. The replica disk of claim 15, wherein the depths of the grooves are greater than 20 nanometers. 17. The replica disk of claim 15, wherein the widths of the tops of the lands are between 140 nanometers and 180 nanometers. 18. The replica disk of claim 1, wherein the depths of the grooves are less than 60 nanometers. 19. The replica disk of claim 18, wherein the depths of the grooves are greater than 20 nanometers. 20. The replica disk of claim 18, wherein the widths of the tops of the lands are between 140 nanometers and 180 nanometers.

이 특허에 인용된 특허 (63)

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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

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연합인증

Reverse optical mastering for data storage disk replicas 원문보기

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Reverse optical mastering for data storage disk replicas 원문보기

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