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北京石油化工学院2026年研究生招生接收调剂公告
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neuzerg

铁虫 (小有名气)

[交流] 【求助】什么方法可以保证薄片样品表面严格平行于基底底座

在单晶硅片上长了薄膜,想进行XRD测试
硅片需要固定在塑料底座上(中间是凹陷的,样品就粘在凹陷处),塑料底座外边缘是严格平行的。
现在问题是:怎么才能保证硅片表面严格平行于塑料底座外边缘(误差小于0.5度)?是整个平面平行。
可以拉两条绷紧的线让表面紧贴着线,但硅片大小只有2cm,不好观察是不是严格贴着线。诸位有没有更好的方法?谢了
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bote

place your sample onto the center of a piece of adhesive

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小木虫(金币+0.5):给个红包,谢谢回帖交流
小木虫:)(金币+1,VIP+0):多谢交流,不过能用汉语就尽量用汉语吧 10-11 12:12
place your sample onto the center of a piece of adhesive  tape, and then place it on your plastic sample holder with the outer edge of the tape gluing on the golder surface.
2楼2009-10-11 03:48:50
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neuzerg

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小木虫:)(金币+1,VIP+0):多谢交流,不过能用汉语就尽量用汉语吧 10-11 12:12
引用回帖:
Originally posted by bote at 2009-10-11 03:48:
place your sample onto the center of a piece of adhesive  tape, and then place it on your plastic sample holder

during this process, we need to stick the sample surface to the adhesive tape
with the outer edge of the tape gluing on the golder surface.

then we need to remove the adhesive tape, but during this process, it will cause distortion to the alignment of the sample?
I don't know if I have understood your method well, but the problem is when you remove the tape away , it will cause disturb to the "good" alignment.  

I prefer to use opticle method to check it is parallele or not, because I have a microscope. but it seems not feasible...
3楼2009-10-11 08:04:19
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bote

if only XRD measurement will be conducted,

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小木虫(金币+0.5):给个红包,谢谢回帖交流
ppjason(金币+1,VIP+0):3x 10-11 11:36
引用回帖:
Originally posted by neuzerg at 2009-10-11 08:04:

then we need to remove the adhesive tape, but during this process, it will cause distortion to the alignment of the sample?
I don't know if I have understood your method well, but the pro ...

i can not see why the tape has to be removed. Generally, a XRD machine itself is able to perform required alignment for measurements. anyway:

you can put some plasticine between your sample and sample holder and then use a piece of flat glass to press the sample all the way down to the holder surface.

用橡皮泥把你的样品先大致固定在载物台上。然后用一快平的玻璃压住样品直到和样品台相接触。
4楼2009-10-11 08:26:24
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neuzerg

铁虫 (小有名气)

谢谢,橡皮泥是个好东西。。。
引用回帖:
Originally posted by bote at 2009-10-11 08:26:


i can not see why the tape has to be removed. Generally, a XRD machine itself is able to perform required alignment for measurements. anyway:

you can put some plasticine between your sample  ...

5楼2009-10-11 10:37:59
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