JPS5786142A - Electrostatic capacity type reproducing stylus - Google Patents

Electrostatic capacity type reproducing stylus

Info

Publication number
JPS5786142A
JPS5786142A JP15949180A JP15949180A JPS5786142A JP S5786142 A JPS5786142 A JP S5786142A JP 15949180 A JP15949180 A JP 15949180A JP 15949180 A JP15949180 A JP 15949180A JP S5786142 A JPS5786142 A JP S5786142A
Authority
JP
Japan
Prior art keywords
thin film
substrate
sic
electrostatic capacity
stylus
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP15949180A
Other languages
Japanese (ja)
Inventor
Yoshitsugu Miura
Yoshihiko Noro
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP15949180A priority Critical patent/JPS5786142A/en
Publication of JPS5786142A publication Critical patent/JPS5786142A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B9/00—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor
    • G11B9/06—Recording or reproducing using a method not covered by one of the main groups G11B3/00 - G11B7/00; Record carriers therefor using record carriers having variable electrical capacitance; Record carriers therefor
    • G11B9/07—Heads for reproducing capacitive information
    • G11B9/075—Heads for reproducing capacitive information using mechanical contact with record carrier, e.g. by stylus

Abstract

PURPOSE:To improve the mass-producibility of electrostatic capacity type reproducing styluses used for video disk players, by using at least one of SiC, Bn and transparent carbon for the tip part of the stylus. CONSTITUTION:On a C-surface sapphire single crystal (5mm. thickness) 8 as a substrate, an SiC thin film (3mum thickness) 9 is formed (a) by RF sputtering and a keel part 10 is formed (b) by photoetching; and the substrate is cut (c) by a multiwire saw along a cutting line 11, and polished (d) until the cut surface is coincident with the flank of the keel part 10, and Ti is vapor-deposited on the polished surface to about 0.2mum to form an electrode 12, thus obtaining a reproducing stylus. The said method facilitates wafer processing by ordinary IC manufacture process and improves work precision, and there is no limitation on the base substrate. Using a BN thin film or transparent carbon film instead of the SiC thin film results in nearly the same effect.
JP15949180A 1980-11-14 1980-11-14 Electrostatic capacity type reproducing stylus Pending JPS5786142A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15949180A JPS5786142A (en) 1980-11-14 1980-11-14 Electrostatic capacity type reproducing stylus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15949180A JPS5786142A (en) 1980-11-14 1980-11-14 Electrostatic capacity type reproducing stylus

Publications (1)

Publication Number Publication Date
JPS5786142A true JPS5786142A (en) 1982-05-29

Family

ID=15694920

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15949180A Pending JPS5786142A (en) 1980-11-14 1980-11-14 Electrostatic capacity type reproducing stylus

Country Status (1)

Country Link
JP (1) JPS5786142A (en)

Similar Documents

Publication Publication Date Title
JPS5786142A (en) Electrostatic capacity type reproducing stylus
JPH04262589A (en) Manufacture of optical semiconductor device
JPS55157472A (en) Sizing method for polishing thin plate parts
JPS5786141A (en) Electrostatic capacity type reproducing stylus
JPS6471663A (en) Lapping method for gaas wafer
JPS5786143A (en) Electrostatic capacity type reproducing stylus
JPS56169236A (en) Manufacture of stylus with electrode
JPS5782093A (en) Optical information recording medium
JPS5621A (en) Forming method of protective film for thin film magnetic head floating surface
JPS5733419A (en) Magnetic head
SU827592A1 (en) Composition for complex saturation of hard-fusible tool
JPS5634122A (en) Manufacture for thin film magnetic head
JPS5617917A (en) Manufacture of silicon oxide film
JPS6446221A (en) Magnetic disk
JPS5422815A (en) Thin film magnetic head and production thereof
JPS57111827A (en) Thin film magnetic head
JPS5798143A (en) Base body of detection type for variation in electrostatic capacity value
JPS5733438A (en) Vanishing method of magnetic disk
JPS5788501A (en) Manufacture for video disc reproducing stylus
JPS6464151A (en) Magneto-optical recording medium
JPS5420494A (en) Polisher for surface processing
JPS56639A (en) Fragileness processing method of tenacity appreciating test piece notch part
JPS55117784A (en) Magnetic bubble memory unit
JPS5680135A (en) Substrate holder for ion etching device
JPS576425A (en) Vertical magentization type magnetic head