JPS524183A - Manufacturing method of semiconductor devices - Google Patents

Manufacturing method of semiconductor devices

Info

Publication number
JPS524183A
JPS524183A JP7974375A JP7974375A JPS524183A JP S524183 A JPS524183 A JP S524183A JP 7974375 A JP7974375 A JP 7974375A JP 7974375 A JP7974375 A JP 7974375A JP S524183 A JPS524183 A JP S524183A
Authority
JP
Japan
Prior art keywords
manufacturing
semiconductor devices
reduced
selective
oxidation
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
JP7974375A
Other languages
Japanese (ja)
Inventor
Kohei Ebara
Masanobu Doken
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP7974375A priority Critical patent/JPS524183A/en
Publication of JPS524183A publication Critical patent/JPS524183A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: After formation of the P well, the selective diffusion is made and at the same time the selective oxidation is employed. Stepped portion on the surface of field oxidation is reduced and leaking current also is reduced and the intergration density is improved.
COPYRIGHT: (C)1977,JPO&Japio
JP7974375A 1975-06-28 1975-06-28 Manufacturing method of semiconductor devices Pending JPS524183A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7974375A JPS524183A (en) 1975-06-28 1975-06-28 Manufacturing method of semiconductor devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7974375A JPS524183A (en) 1975-06-28 1975-06-28 Manufacturing method of semiconductor devices

Publications (1)

Publication Number Publication Date
JPS524183A true JPS524183A (en) 1977-01-13

Family

ID=13698688

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7974375A Pending JPS524183A (en) 1975-06-28 1975-06-28 Manufacturing method of semiconductor devices

Country Status (1)

Country Link
JP (1) JPS524183A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4919779A (en) * 1972-04-14 1974-02-21
JPS4944555A (en) * 1972-09-04 1974-04-26

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4919779A (en) * 1972-04-14 1974-02-21
JPS4944555A (en) * 1972-09-04 1974-04-26

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