JPS5458411A - Pickup cartridge and production of the same - Google Patents

Pickup cartridge and production of the same

Info

Publication number
JPS5458411A
JPS5458411A JP12556277A JP12556277A JPS5458411A JP S5458411 A JPS5458411 A JP S5458411A JP 12556277 A JP12556277 A JP 12556277A JP 12556277 A JP12556277 A JP 12556277A JP S5458411 A JPS5458411 A JP S5458411A
Authority
JP
Japan
Prior art keywords
wire
vapor deposition
boron
short time
layer
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
JP12556277A
Other languages
Japanese (ja)
Inventor
Koichi Azuma
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP12556277A priority Critical patent/JPS5458411A/en
Publication of JPS5458411A publication Critical patent/JPS5458411A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To enable cantilevers having high specific modulus layers to be readily formed in a short time and achieve the improvement in frequency characteristics, transient characteristics, etc. inexpensively by continuously using a plasma chemical vapor deposition process and an atmospheric chemical vapor deposition process.
CONSTITUTION: A base of solid bar form or pipe form, e.b., Al wire 16, is heated in a reaction furnace and a first boron layer 18 of an evenly high density of more than 5000kg/mm2 in specific modulus is formed on the outside of the wire by mixed gases of BCl3 and H2 in plasma condition under reduced pressure. Following to this, a second boron layer 19 of an evenly low density is formed in a short time on the layer 18 through chemical reaction under atmospheric pressure. This semifinished product of cantilever is cut to a suitable lenght, after which the wire 16 is removed by chemical etching process, whereby the pipe form cantilever body 21 of the boron alone may be obtained. A diamond tip 20 is fixed to this body 21 by bonding or burying
COPYRIGHT: (C)1979,JPO&Japio
JP12556277A 1977-10-18 1977-10-18 Pickup cartridge and production of the same Pending JPS5458411A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12556277A JPS5458411A (en) 1977-10-18 1977-10-18 Pickup cartridge and production of the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12556277A JPS5458411A (en) 1977-10-18 1977-10-18 Pickup cartridge and production of the same

Publications (1)

Publication Number Publication Date
JPS5458411A true JPS5458411A (en) 1979-05-11

Family

ID=14913257

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12556277A Pending JPS5458411A (en) 1977-10-18 1977-10-18 Pickup cartridge and production of the same

Country Status (1)

Country Link
JP (1) JPS5458411A (en)

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