JPS5515931A - Improved glazed ceramic substrate - Google Patents

Improved glazed ceramic substrate

Info

Publication number
JPS5515931A
JPS5515931A JP8655178A JP8655178A JPS5515931A JP S5515931 A JPS5515931 A JP S5515931A JP 8655178 A JP8655178 A JP 8655178A JP 8655178 A JP8655178 A JP 8655178A JP S5515931 A JPS5515931 A JP S5515931A
Authority
JP
Japan
Prior art keywords
mgo
glass film
cao
alkali metal
compsn
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.)
Granted
Application number
JP8655178A
Other languages
Japanese (ja)
Other versions
JPS5638538B2 (en
Inventor
Akio Koyama
Toshimichi Morisane
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.)
TDK Corp
Original Assignee
TDK 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 TDK Corp filed Critical TDK Corp
Priority to JP8655178A priority Critical patent/JPS5515931A/en
Publication of JPS5515931A publication Critical patent/JPS5515931A/en
Publication of JPS5638538B2 publication Critical patent/JPS5638538B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Laminated Bodies (AREA)
  • Glass Compositions (AREA)
  • Non-Adjustable Resistors (AREA)

Abstract

PURPOSE: To provide the title substrate with no curvature, superior smoothness, heat resistance, electrical characteristics, etc. for electronic parts by covering a glass film of a MgO-added SiO2-Al2O3-CaO-alkali metal oxide compsn. on an insulating ceramics substrate.
CONSTITUTION: A glass film of a 1W4% MgO-added compsn. consisting of, by wt., SiO2 70W85%, Al2O3 7W17%, CaO 0.5W5% and one or more kinds of alkali metal oxides 5W15% is formed on an insulating ceramics substrate. The MgO contained acts to suitably regulate surface tension relative to smoothening of the glaszed surgace. The glass film of this invention wishstands heat of temps. as high as 950W1050°C, and the acid resistance is 20W50% higher than that of a conventional film wish respect to solubility in a mixed soln. of hydrofluoric acid/ nitric acid=1/1.
COPYRIGHT: (C)1980,JPO&Japio
JP8655178A 1978-07-15 1978-07-15 Improved glazed ceramic substrate Granted JPS5515931A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8655178A JPS5515931A (en) 1978-07-15 1978-07-15 Improved glazed ceramic substrate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8655178A JPS5515931A (en) 1978-07-15 1978-07-15 Improved glazed ceramic substrate

Publications (2)

Publication Number Publication Date
JPS5515931A true JPS5515931A (en) 1980-02-04
JPS5638538B2 JPS5638538B2 (en) 1981-09-07

Family

ID=13890131

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8655178A Granted JPS5515931A (en) 1978-07-15 1978-07-15 Improved glazed ceramic substrate

Country Status (1)

Country Link
JP (1) JPS5515931A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4930251A (en) * 1972-07-19 1974-03-18

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4930251A (en) * 1972-07-19 1974-03-18

Also Published As

Publication number Publication date
JPS5638538B2 (en) 1981-09-07

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