JPS5598835A - Pressure-welded semiconductor device - Google Patents
Pressure-welded semiconductor deviceInfo
- Publication number
- JPS5598835A JPS5598835A JP589279A JP589279A JPS5598835A JP S5598835 A JPS5598835 A JP S5598835A JP 589279 A JP589279 A JP 589279A JP 589279 A JP589279 A JP 589279A JP S5598835 A JPS5598835 A JP S5598835A
- Authority
- JP
- Japan
- Prior art keywords
- metal layer
- electrode
- substrate
- molybdenum
- lead conductor
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/80—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
- H01L2224/83—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a layer connector
- H01L2224/831—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a layer connector the layer connector being supplied to the parts to be connected in the bonding apparatus
- H01L2224/83101—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a layer connector the layer connector being supplied to the parts to be connected in the bonding apparatus as prepeg comprising a layer connector, e.g. provided in an insulating plate member
Landscapes
- Die Bonding (AREA)
Abstract
PURPOSE: To prevent the fuse-bonding of metal layers and the deterioration of dielectric srength, by interposing a metal layer of 1600°C or more in melting point between another metal layer and an electrode provided on a diode substrate before pressure-welding an external lead conductor to the electrode through the latter metal layer.
CONSTITUTION: A substrate 2 made of molybdenum is fixed on an anode lead conductor 6 made of copper. A diode substrate 1 is bonded on the support plate 2 by a brazing material 3 so that the anode side of the substrate 1 is located face-down. An aluminum electrode 4 is fitted in ohmic contact with the cathode side 1b of the substrate. A cathode lead conductor 7 is pressure-welded to the aluminium electrode through a metal layer 5 of molybdenum, tungsten or the like. In that case, another metal layer 9 of molybdenum, tungsten, vanadium, rhodium, hafnium or the like, the melting point of which is not lower than 1600°C, is interposed between the electrode 4 and the metal layer 5. As a result, the metal layers 5, 9 are not fuse-bonded to each other in electrical current supply although their boundary surfaces become like mirror surfaces because of the difference between their thermal expansion coefficients. Therefore, the dielectric strength does not deteriorate.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP589279A JPS5936822B2 (en) | 1979-01-19 | 1979-01-19 | Pressure contact type semiconductor device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP589279A JPS5936822B2 (en) | 1979-01-19 | 1979-01-19 | Pressure contact type semiconductor device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5598835A true JPS5598835A (en) | 1980-07-28 |
JPS5936822B2 JPS5936822B2 (en) | 1984-09-06 |
Family
ID=11623540
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP589279A Expired JPS5936822B2 (en) | 1979-01-19 | 1979-01-19 | Pressure contact type semiconductor device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5936822B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57180137A (en) * | 1981-04-30 | 1982-11-06 | Hitachi Ltd | Semicondudtor device |
JPS60145657A (en) * | 1984-01-09 | 1985-08-01 | Mitsubishi Electric Corp | Semiconductor device |
JPS61105849A (en) * | 1984-10-30 | 1986-05-23 | Internatl Rectifier Corp Japan Ltd | Manufacture of semiconductor device |
-
1979
- 1979-01-19 JP JP589279A patent/JPS5936822B2/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57180137A (en) * | 1981-04-30 | 1982-11-06 | Hitachi Ltd | Semicondudtor device |
JPS60145657A (en) * | 1984-01-09 | 1985-08-01 | Mitsubishi Electric Corp | Semiconductor device |
JPS61105849A (en) * | 1984-10-30 | 1986-05-23 | Internatl Rectifier Corp Japan Ltd | Manufacture of semiconductor device |
JPH0478171B2 (en) * | 1984-10-30 | 1992-12-10 | Nippon Inter Electronics Corp |
Also Published As
Publication number | Publication date |
---|---|
JPS5936822B2 (en) | 1984-09-06 |
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