JPS5548947A - Evaluation of semiconductor integrated circuit - Google Patents
Evaluation of semiconductor integrated circuitInfo
- Publication number
- JPS5548947A JPS5548947A JP12302978A JP12302978A JPS5548947A JP S5548947 A JPS5548947 A JP S5548947A JP 12302978 A JP12302978 A JP 12302978A JP 12302978 A JP12302978 A JP 12302978A JP S5548947 A JPS5548947 A JP S5548947A
- Authority
- JP
- Japan
- Prior art keywords
- cleanliness
- degree
- good
- evaluation
- capacitors
- 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
Links
Landscapes
- Testing Or Measuring Of Semiconductors Or The Like (AREA)
Abstract
PURPOSE: To make accurate evaluation of manufacturing process, by producing large-capacitance MOS-type capacitors simultaneously in the process of manufacturing ICs, taking them out, electricaly destroying them, and investigating their electric field break-down strength and their distribution.
CONSTITUTION: N-type Si wafers are placed in a production line for unipolar ICs, SiO2 film is grown in a dry O2 atmosphere, and a plurality of MOS capacitors are produced by operating metallization. Next, a time when the degree of cleanliness is good and a time when the degree of cleanliness is bad are picked out and capacitors are taken out and electrically destroyed, and then their breakdown electric field strength distributions are investigated. By this, it is found that the breakdown condition is good as shown by curve 1 in the drawing when the degree of cleanliness is good, but it deteriorates as shown by curve 2 when the degree of cleanliness is bed. Consequently, evaluation is made very simple, and this provides a very effective means for correction and adjustment of each process with respect to control targets.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12302978A JPS5548947A (en) | 1978-10-05 | 1978-10-05 | Evaluation of semiconductor integrated circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12302978A JPS5548947A (en) | 1978-10-05 | 1978-10-05 | Evaluation of semiconductor integrated circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5548947A true JPS5548947A (en) | 1980-04-08 |
Family
ID=14850447
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12302978A Pending JPS5548947A (en) | 1978-10-05 | 1978-10-05 | Evaluation of semiconductor integrated circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5548947A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62276879A (en) * | 1986-05-26 | 1987-12-01 | Fujitsu Ltd | Semiconductor integrated circuit |
-
1978
- 1978-10-05 JP JP12302978A patent/JPS5548947A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62276879A (en) * | 1986-05-26 | 1987-12-01 | Fujitsu Ltd | Semiconductor integrated circuit |
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