SU1585383A1 - Device for monitoring the depth of etching of metal film - Google Patents
Device for monitoring the depth of etching of metal film Download PDFInfo
- Publication number
- SU1585383A1 SU1585383A1 SU884616042A SU4616042A SU1585383A1 SU 1585383 A1 SU1585383 A1 SU 1585383A1 SU 884616042 A SU884616042 A SU 884616042A SU 4616042 A SU4616042 A SU 4616042A SU 1585383 A1 SU1585383 A1 SU 1585383A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- metal
- etching
- film
- depth
- resistance
- Prior art date
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Classifications
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- ing And Chemical Polishing (AREA)
Abstract
Изобретение относитс к гальванотехнике. Целью изобретени вл етс увеличение точности измерений путем регистрации глубины при неполном стравливании металла. Устройство включает подложку 1 с нанесенной на нее послойно резистивной пленкой 2 и металлической пленкой 3, выполненной в виде клина. К выводам пленок подсоединен измерительный прибор 4. Устройство устанавливают в ванну травлени р дом с обрабатываемым образцом. Травителем постепенно удал ют металлическую пленку 3, при этом вскрываетс больша площадь резистивной пленки 2. Общее сопротивление цепи увеличиваетс , что регистрируетс прибором 4, т.к. последовательно к очень маленькому сопротивлению металлической клинообразной пленки 3 подключено растущее в процессе травлени сопротивление резистивной пленки 2. По результату суд т о глубине травлени . Конструкци устройства за счет линейного закона изменени сопротивлени различных металлов обеспечивает высокую чувствительность и точность определени толщины стравливаемых пленок. 1 ил.This invention relates to electroplating. The aim of the invention is to increase the accuracy of measurements by registering the depth when the metal is not fully bled. The device includes a substrate 1 with a resistive film 2 deposited on it in layers and a metal film 3 made in the form of a wedge. A measuring device 4 is connected to the terminals of the films. The device is placed in an etching bath next to the sample to be processed. The etcher gradually removes the metal film 3, thereby opening up a large area of the resistive film 2. The total resistance of the circuit increases, which is recorded by the device 4, since consistently with a very small resistance of the metal wedge-shaped film 3, the resistance of the resistive film 2 that grows during the etching process is connected. Judging the result, the etching depth is determined. The design of the device due to the linear law of variation of the resistance of various metals provides high sensitivity and accuracy in determining the thickness of the etched films. 1 il.
Description
Изобретение относится к гальванотехнике, в частности к устройствам для контроля глубины травления пленочных металлических покрытий.The invention relates to electroplating, in particular to devices for controlling the etching depth of film metal coatings.
Цель изобретения - увеличение точности измерений и повышение чувствительности путем регистрации глубины при неполном стравливании металла,The purpose of the invention is to increase the accuracy of measurements and increase the sensitivity by registering depth with incomplete bleeding of the metal,
На чертеже изображено данное уст- эд ройство.The drawing shows this device.
Устройство для контроля глубины травления металлической пленки включает подложку 1, на которую послойно нанесена резистивная пленка 2, а за- 15 тем металлическая пленка 3, выполненная в виде клина. К выводам пленок подсоединен измерительный прибор 4: один вывод - к краю резистивной пленки 2, а другой - к противоположному 20 краю металлической пленки 3.A device for controlling the depth of etching of a metal film includes a substrate 1, on which a resistive film 2 is applied layer by layer, and then 15 a metal film 3 made in the form of a wedge. A measuring device 4 is connected to the terminals of the films: one terminal to the edge of the resistive film 2, and the other to the opposite 20 edge of the metal film 3.
Устройство работает следующим образом.The device operates as follows.
Устройство устанавливают в ванну химического травления рядом с обра- 25 батываемым образцом. Травителем постепенно удаляют металлическую пленку 3, при этом вскрывается все большая площадь резистивной пленки 2. Общее сопротивление в цепи измери- 3Q тельного прибора 4 увеличивается, так как последовательно к очень маленькому сопротивлению металлической клинообразной пленки 3 подключено растущее в процессе травления сопротивление резистивной пленки 2. По результату судят о глубине травления металлической пленки 3.The device is installed in a chemical etching bath next to the sample being processed. The metal film 3 is gradually removed by the etcher, and an increasingly large area of the resistive film 2 is opened. The total resistance in the circuit of the measuring device 3Q increases, since the resistance of the resistive film 2 growing during etching is connected to a very small resistance of the metal wedge-shaped film 3. The result is judged on the depth of etching of the metal film 3.
Использование устройства для контроля глубины травления различных металлов (никель, медь, ванадий и др.) показало, что закон изменения сопротивления в цепи в зависимости от времени травления практически линеен, т.е. высокая чувствительность и точность обеспечивается во всем интервале толщин и травление пленок может быть проведено до любого заранее заданного значения толщины.Using a device to control the etching depth of various metals (nickel, copper, vanadium, etc.) showed that the law of change in resistance in a chain depending on the etching time is almost linear, i.e. high sensitivity and accuracy is ensured over the entire thickness range, and etching of the films can be carried out to any predetermined thickness value.
//
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU884616042A SU1585383A1 (en) | 1988-12-05 | 1988-12-05 | Device for monitoring the depth of etching of metal film |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU884616042A SU1585383A1 (en) | 1988-12-05 | 1988-12-05 | Device for monitoring the depth of etching of metal film |
Publications (1)
Publication Number | Publication Date |
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SU1585383A1 true SU1585383A1 (en) | 1990-08-15 |
Family
ID=21413303
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU884616042A SU1585383A1 (en) | 1988-12-05 | 1988-12-05 | Device for monitoring the depth of etching of metal film |
Country Status (1)
Country | Link |
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SU (1) | SU1585383A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0550176A1 (en) * | 1991-12-31 | 1993-07-07 | AT&T Corp. | Manufacturing method, including etch-rate monitoring |
-
1988
- 1988-12-05 SU SU884616042A patent/SU1585383A1/en active
Non-Patent Citations (1)
Title |
---|
Авторское свидетельство СССР № 578367, кл. С 23 F 1/08, 1978. За вка JP № 58-16073, кл. С 23 F 1/00, 1983. * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0550176A1 (en) * | 1991-12-31 | 1993-07-07 | AT&T Corp. | Manufacturing method, including etch-rate monitoring |
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