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We provide the silicon wafers you need to observe the Graphene.
Clients have used the following silicon wafer with great success:
Below is a typical question and answer between researcher and us:
We need detailed specification to determine initial costs for the project and costs per wafer.
[Q1] Can you give us more details regarding your request?
[Q2] What kind of pattern do you need?
[Q3] Which dimensions and tolerances?
[Q4] Depth of structures?
[Q5] How many wafers do you need and how often?
At this feature size we have mask reticles which we step over the wafer. Per reticle CD structures are necessary.
I hope this is not a problem.
A1: In our experiment, we need the period of the feature less than 200nm. (i.e. ridge width + valley width <= 200 nm)
A2: Currently, periodic line pattern is enough for initial study.
A3: Dimension of the wafer should be at least 10mm * 10mm.
A4: Depth of the pattern is not important. 10nm ~ 100 nm is good.
A5: It depends on the price and the quality of the wafer. For the initial experiment, we don't need much (may be around 10). After successful attempt, we may need much more.