SU718954A1 - Composition for cleaning printed circuit board coatings - Google Patents
Composition for cleaning printed circuit board coatings Download PDFInfo
- Publication number
- SU718954A1 SU718954A1 SU772494095A SU2494095A SU718954A1 SU 718954 A1 SU718954 A1 SU 718954A1 SU 772494095 A SU772494095 A SU 772494095A SU 2494095 A SU2494095 A SU 2494095A SU 718954 A1 SU718954 A1 SU 718954A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- printed circuit
- composition
- potassium
- circuit board
- ammonia
- Prior art date
Links
Description
(54) СОСТАВ ДЛЯ очистки СЕРЕБРЯНЫХ ПОКРЫТИЙ ПЕЧАТНЫХ nJflAT Аммиак 25%-иый0,4 Вода дистил)1ированна .Остальное W..Калий железосине- -родистый23 Калий роданистый. 10 Аммиак 25%-ный0,45 Вода дистиллированна Остальное с последующей промывкой. После промйвки платы дополнитель но обрабатывают в растворе кали (54) COMPOSITION FOR CLEANING SILVER COATINGS OF PRINTING nJflAT Ammonia 25% -yy0.4 Distilled water 1). Others W. Calium iron-blue-23 Potassium is rhodanous. 10 Ammonia 25% -0.45 Water is distilled Else with subsequent washing. After flushing the board, it is additionally treated in a potassium solution.
Врем / прошедшее Time / Past
раствора осветлени , после приготовлени раствора, чclarification solution, after preparing the solution, h
Калий железосинеродистый Калий роданистыйPotassium is ferrosynergidic
Аммиак 25%-ныйAmmonia 25%
ВодаWater
Калий железосинеродистый Калий роданистый Аммиак 25%-ныйPotassium is ferro-synergistic Potassium, rhodium, ammonia 25%
ВодаWater
Калий железосинеродистый Калий роданистыйPotassium is ferrosynergidic
Аммиак 25%-ныйAmmonia 25%
ВодаWater
Калий железосинеродистый Калий роданистый . Аммиак 25%-ныйPotassium is iron-synergistic. Potassium is rhodanous. Ammonia 25%
ВодаWater
Калий железосинеродистыйPotassium ferrosynergide
Калий роданистый Аммиак 25%-ный . ВодаPotassium Rodanist Ammonia 25%. Water
Калий железосинеродистыйPotassium ferrosynergide
Калий родистый Аммиак 25%-ныйPotassium is parental Ammonia 25%
ВодаWater
Срок сохранени па ющей способности , лниThe period of preservation of the drinking ability,
9393
,0,10.1
9393
0,10.1
9393
9393
0,10.1
9393
93 роданистого с последующей промывкой и сушкой. При проведении испытаний одну партий плат осветл ли в свежеприготовленном растворе, другую - через 24 ч после приготовлени раствора. . Па ющай способность в течение срока хранени определ лась по растекаемости припо и скорости заполнени припоем металлизированных отверстий . Хранились платы без упаковки . Результаты испытаний представ лены в таблице,93 Rodanist followed by washing and drying. In tests, one set of boards was clarified in a freshly prepared solution, the other 24 hours after preparation of the solution. . The fouling ability during the storage period was determined by the flowability of the solder and the soldering rate of the metallized holes. Boards were stored unpacked. The test results are presented in the table,
Использование предлагаемого раствора , врем пригодности которого достигает 24 ч (вместо 15-20 мин при использовании известного раствора), позвол ет автоматизировать операцию осветлени и тем самым снизить трудоемкость изготовлени печатных плат с серебр ным покрытием; срок.сохранени па ющей способности плат обеих партий составл ет не менеетрех мес цев при хранении печатных плат без упаковки.The use of the proposed solution, which can be used up to 24 hours (instead of 15-20 minutes using a known solution), allows to automate the clarification operation and thereby reduce the laboriousness of manufacturing silver-coated printed circuit boards; The period of storage of the soldering capacity of the boards of both batches is not less than three months when storing printed circuit boards without packaging.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772494095A SU718954A1 (en) | 1977-06-07 | 1977-06-07 | Composition for cleaning printed circuit board coatings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772494095A SU718954A1 (en) | 1977-06-07 | 1977-06-07 | Composition for cleaning printed circuit board coatings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU718954A1 true SU718954A1 (en) | 1980-02-29 |
Family
ID=20712373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU772494095A SU718954A1 (en) | 1977-06-07 | 1977-06-07 | Composition for cleaning printed circuit board coatings |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU718954A1 (en) |
-
1977
- 1977-06-07 SU SU772494095A patent/SU718954A1/en active
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