端子镀金层硝酸气试验方法

1、The nitric acid used in this test is a strongacid and specialcautionshould be taken.Read Material Safety Data Sheet before start ing the test.The test is done in a fume hood. Suitable protective cloths, gloves and eye protecti on must be used.During the whole test process, particularcauti on is requ

2、ired for con tact areas in samplehan dli ng, avoid ing any touch in g/scratch ing by hands and tools.用在该项试验中的硝酸是一种强酸性，应特别警示。试验前阅读MSDS这项试验在一个通风橱中进行。必须穿防护衣服/手套/保护眼睛器具。在整个试验过程中，尤其要注意样品处理时与地面接触区域的警示，防止接触及划伤。1.1 Test Equipment and Chemicals 试验设备 / 药品Below is a list of equipme nt n eeded to perform the te

3、st:清单2 x vacuum desiccators with grou nd joint and tap . Model Novus, Schott NS24/id. 250 mm)2个带磨口连接和活栓的枯燥器Dessicca nt, Blue Silica Gel干的/蓝硅胶Sample holder made of i nert material . PTFE / Teflon)Nitric acid, reage nt grade, con ce ntrated(69 士 2%) HNO3, relative den sity (20 ° C)to硝酸，试剂等级，浓缩(69

4、 士 2%) HNO3相对密度(20 ° C) tog/cm3. Read Material Safety Data Sheet before start ing the test!试验前阅读MSDSDen sity hydrometer . Widder, scale密度液体比重计(如,方,刻度Graduated glass (cyli nder) 500 ml有刻度的玻璃杯(圆柱形)500 mlGlass funnel玻璃漏斗Timer (alarm clock)计时器(闹钟)Oven for drying the tested samples烘箱Microscope for a

5、n alyz ing samples显微镜o Optical microscopes (Stereo/metallurgical microscope)光学显微镜o SEM, Scanning electron microscope 标准电子块，扫描电子显微镜Protective Gloves . nitrile-base)保护手套Safety goggles 防护眼镜NaHCOto neutralizationsplashes form table or floor (in case of accident).Forskin use tap water to dilute acid spla

6、shes.(假设发生事故)用 NaHCO中和台面和地面的喷着点，假设滴落皮肤上，用自来水稀释酸的喷着点NaHCOFume hood通风橱1.2 Test setupFigure 1. Graduated glass cyli nder, n itric acid bottle and test chamber in the fumehood.图一，带刻度的玻璃杯，硝酸瓶，通风橱控制下的试验区The followi ng procedure is performedin a fume hood. The test is done in the fume hood.Measure500 ml Ni

7、tic acid with the glass cylinder and pour it carefully into the empty and clean dessicator. Close the lid and let the test vessel stabilitze for atleast 30 min utes.下面的试验要在通风橱内进行.将装有500 ml的硝酸小心倒入空的/干净的枯燥器中，盖上盖子，将测试器具旋转至少30分钟以上.Figure 2. Samples prepared for the test and fixed hanging on the sample h

8、older.图2.准备好测试用样品并将其固定在样品固定器上Depending on the samples differentmethods for attaching the samples may be required, .sample jigs. In the figure two conn ector samples are attached to each other with asoldered wire. This makes it possible to hang the samples in the desiccators on a sample holder.根据样品的不

9、同采用用不同的试验方法.,例如用夹具.在图二中，两个连接器用一根焊接线连接在一起，这样做可以将在一个样品固定器同一枯燥器里的样品挂起Figure 3. Samples are hanging on the sample holder in the desiccators.图3.挂在在枯燥器里样品固定器上的样品。In the figure the tested samples are hanging on the sample holder.图中被试验的样品挂在样品固定器上。Figure 4. The fume hood door is kept closed dur ing the test.

10、图4试验中通风橱的门要保持关闭状态。Figure 5. The tested samples are removed from the chamber and put on a glass plate图5将被试验的样品从试验区移岀放置在玻璃器皿中。C for 60 min utes.Figure 6. The tested samples are put into the ove n for drying at 80图6被试验的样品放入烘箱80度烘烤60分钟。2. ANALYSIS OF TESTED SAMPLES样品分析QllThe dryed and cooled samples are

11、 analyzed using optical (stereo microscope/metallurgical microscope) microscopes or sca nning electr on microscope (SEM). Images of the tested conn ector spri ngs are imaged and the images are saved. These images are compared with respective gauge and are give n a score accord ing to the gauge scale

12、.风干/冷却后的样品使用光学显微镜或扫描电子显微镜进行分析。这些图像选用不同测量仪进行 比照及记录。2.1 Optical gauge 光学测量仪This optical gauge is imaged with a Hirox KH-3000 stereo microscope.这个光学测量仪与Hirox KH-3000 立体显微镜很相似。Figure 7. Optical gauge with scores 0,1 and 2.图7光学测量仪0-222扫描电子显微镜测量Figu08. Old optical gauge with scores 0-5.图8老的光学测量仪0-50 12.2

13、Scanning Electron Microscope (SEM) gauge扫描电子显微镜This SEMgauge is imaged with a FEI-FEG ESEMElectron Scanning Microscope in LowVac Mode. 扫描电子显微镜与FEI-FEG ESEM的电子扫描显微镜极为相似.Figure 9. SEM gauge with scores 0, 1 and 2.图九SEM下的图0-2FiguiOo. Old SEM gauge with scores 0-5.图10 老式SEM下的图0-512.3.1 Requirements 要求Mi

14、ni mum sample amou nt is 6 conn ectors. The plati ng strips of con tacts can also be usedand the mini mum amou nt of con tacts is 6 times the n umber of pins per conn ector.All samplesshould be tested at same time.最少的样品量为 6个连接器。电镀条片的接触，也可用于及最低数额的接触是6倍的数量每引脚连接器。所有样品应在同一时间进行检验。The exam in ati onand re

15、cords are applied to the critical area of in dividual con tact. Thedefi niti on of critical area of con tacts is decribed in Appe ndix I.检查和记录，是适用于临界区域的个别接触。定义中的关键领域进行接触，是描述在附录一。Recomma ndati on for the magn ificati ons used for optical microscope observati on is described in Appe ndix II.建议使用倍率光学显微

16、镜进行检验，见附录二描述。2.3.2 Acceptanee criteria验收标准The score for the tested sample is got by compari ng the microscope image of the tested sample with the gauge,错误味找到引用源。-错误！未找到引用源。通过不同的显微镜进行样品比照，得岀不同的测试结果。图7 -图10。More information for the criteria is described in Appendix III.关于标准的更多信息见描述。Table 1. Score, Res

17、ult and Acti onsScoreResultActi ons0Accepted 接受-1Accepted with acti ons 整改后接受Action plan needs to be created by supplier and sent to Nokia which in cludes:整改方案包括下面几方面，由供给商制作完成后送交NOKIAActi ons for root cause an alysis原因分析Time schedule 时间表Correctio n n eeds to be impleme nted accord ing root cause an

18、alysis根据原因分析执行整改措施Improved samples n eed to be delivered to Nokia for test ing and an alysi ng.改良后的样品送交NOKIA作测试及分析。2Rejected 不合格Nokia may issue a hold on further delivery or request a statistic an alysisAction plan needs to be created by supplier and sent to Nokia which in cludes:整改方案包括下面几方面，由供给商制作完

19、成后送交NOKIAActi ons for root cause an alysis原因分析Time schedule 时间表Correctio n n eeds to be impleme nted accord ing root cause an alysis根据原因分析执行整改措施Improved samples n eed to be delivered to Nokia for testi ng and an alysi ng.改良后的样品送交NOKIA作测试及分析。2.3.3 Result evaluati onObservati on/exam in ati on n eed t

20、o be carried out for all con tacts un der the test. Thescores for all con tacts un der test should be recorded in the report.试验中所以接触点都要做检查及测试，并记录测试结果。Depe nding on the test results, a statistic an alysis may be requested.应根据检查结果做岀统计分析。The requireme nts and procedures for statistic an alysis are docu

21、me nted separately.与统计分析相关的证明报告需单独列岀来。3. MAINTENANCE隹护Remove the sample holder from the test vessel after the test and wash it using water.The Nitric acid can be stored in the vessel.If the vapor in the test vessel is tur ned into brow n or red-brow n the lid n eeds to beope ned to let the dark colo

22、red vapor out from the vessel. Close the lid aga in whe n thechamber looks clear. Note that the lid needs to be closed 30 minutes before a new testcan start. A too warm test solution makes the vapour change color.After every two weeks the test solutionis poured back to 500 ml graduated glass. Amount

23、of nitric acid is checked and added up to 500 ml if need. Density of acid must check using den sity hydrometer.After every three mon ths the whole test soluti onmust be cha nge. Disposals of HNQ wasten eed to be done accord ing to local legal in structi ons.The test solutionmust be changed immediate

24、ly if any of the samples falls into the acid.The test solution must be changed immediately if any visual color change of the acid soluti on occurs.试验的将样品固定器从试验器皿中移出来，水洗干净。硝酸可将之储存在试验器皿上。如果蒸气在试验容器变成褐色或红褐色，需要将盖子翻开，让深色汽从试验器皿散出。当试验区变得清晰些的时候再将盖子盖上。需要注意的是，要将盖子关闭三十分钟后，才可开始一项新的实验。太热的试验溶液，将使汽体变色。每两个星期做的试验，是将溶

25、液倒入有刻度的500毫升的玻璃瓶中。检查硝酸的容量，假设需要要加至500毫升，酸的密度必须使用密度比重计进行检查。每3个月，试验用的溶液必须更换。硝酸废物的处理，必须按照当地的法律指示执行。当样品落入酸里时，试验用的溶液必须更换。如果酸溶液里能够看到气体变色，试验用的溶液必须更换。4. PROCESS4.1 Sample preparati on准备样品The type of sample needs to be taken into accountwhen the samples are prepared for thetest. The surfaces objected to the t

26、ests need to be undamaged and untouched. The samples n eed to be fixed in the test vessel. One opti on is to hang the samples using acid proof material like PTFE. One easy soluti on is to conn ect two conn ectors by solderi n a shortwire (5-10 cm) betwee n two legs.Wet clea ning is not recomme nded

27、since it will affect the test results. Exter nal solid depositi ons on con tact surface can be removed by compressed air.准备试验时，必须考虑到样品类型满足试验需要。样品外表需保持完好并原封不动。样品必须固 定在试验容器里。一种选择是像如聚四氟乙烯一样使用耐酸材料将样品挂上。一个简单的方法是通过焊焊接的方式将两个连接器样品之间的两条腿用一条小金属线(5-10厘米)连接上。不建议湿洗，因为它会影响测试结果。接触面的外表固体沉积，可由压缩空气去除。Figure 11. Conn

28、ector samples conn ected together by solderi ng a short wire betwee n twolegs of the conn ectors to make it easy to hang the samples in the test vessel.图11通过焊接的方式将两个连接器样品之间的两条腿用一条小金属线(5-10厘米)连接上。4.2 Test chamber preparation试验区准备Use a clean and completely dry vacuum dessicator. Keep the dessicator in

29、 the fume hood. Measure500 ml fresh HNO 3 in a graduated glass cyli nder and poor it carefully into the vacuum dessicator. Close the lid and let the test chamber stabilize for at least 30 min.使用清洁和完全枯燥的真空枯燥器。将枯燥器放在抽风橱中。将500 ml的新的HNO小心倒入真空枯燥器中，盖上盖子，保持稳定状态放置至少30分钟。4.3 Testi ng试验In sert the samples usi

30、ng suitable fixture将样品放入适宜的装置中Close the cover and start the timer. There are two testi ng durati ons accord ing to the thick ness of the plati ng.1h exposure: used for the Au plating(includingPd-Ni) thickness =< micrometer2h exposure: used for the Au plati ng in cludi ng Pd-Ni thick ness > mic

31、rometerRemove the samples from the test vessel and place them on a glass plate.Dry the samples on the glass plate in an ove n for 60 min utes at 80CPut the dried samples in a dessicator with active dessica nt to cool dow n to room temperature for 15 min utes.密切封面，并开始计时。根据厚度的镀层做两个试验。?暴露1小时：用于镀金包括钯镍厚度 = < 微米?暴露2小时：用于镀金包括钯镍厚度 > 微米将样品从试验容器里拿岀来，放在一个玻璃盘上。