JPS5515931A - Improved glazed ceramic substrate - Google Patents
Improved glazed ceramic substrateInfo
- 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
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
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4930251A (en) * | 1972-07-19 | 1974-03-18 |
-
1978
- 1978-07-15 JP JP8655178A patent/JPS5515931A/en active Granted
Patent Citations (1)
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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