1. What is the return policy on the Spin Coater kits?
Answer: We will repair, or replace any Spin Coater kit within 30 days of purchase Free of Charge. There is No Cash Refund, so you are strongly encouraged to review the SCK’s User Manuals and Specifications to make certain it fits your needs.
2. What is the biggest substrate size that can be used with the Spin Coater kits?
Answer: The biggest substrate we recommend for use with our kits are a 3″ x 3″ (75mm x 75mm) square, or 4″ (100mm) diameter. That said, for substrates this size, we would recommend a commercial spin coater. Commercial units have specially designed vacuum chucks for larger substrates, not to mention you will be able to have greater control over the coating process.
3. Why do the Spin Coater Kits look like something I can build myself?
Answer: The design of the Spin Coater kits focuses on functionality over looks to keep cost down. They are predominantly built using off-shelf components, combined with our custom firmware and hardware. So yes, you can easily build one yourself; but the real value here is that our kits save you the time and effort to do so. Here is a quote from University Machinist, Jeffrey G. which illustrates this point.
“The time to track down all these parts, implement ramping features in existing microcontrollers, and design and fabricate the supporting structures would ball park be around 25 hours. This rough estimate sums to $1100 at our on-campus rates ($40/hr). I saved at the least 10 to 15 hours getting your kit. My costs were reduced by half and the shortened project timeline allowed me to move onto newer projects more quickly.”
4. Does the SCK-200 support a vacuum chuck?
Answer: Yes the SCK-200P now uses a unique vacuum chuck design. Check out the video of the prototype.
5. Would you recommend the SCK-200 kits for precision, or production work?
Answer: No, for precision or production work we recommend a commercial Spin Coater.
6. Does the SCK-200 require a transformer outside of the US or Canada?
Answer: No, the SCK-200 comes with a universal power adapter allowing it to work with either 110V or 220V. A plug adapter maybe required though.
7. Can the SCK-200 be used to produce high quality films using “X” coating solution?
Answer: Unfortunately, there are too many variables in the spin coating process to provide a definitive YES/NO. This can only be determined experimentally.
8. Can a different vacuum chuck/stage be used with the SCK-200P?
Answer: No, the SCK-200P uses a unique vacuum chuck design which is not compatible with other vacuum chucks on the market.
9. Could you share your experience on the stability or robustness of the controller and the mechanical construction?
Answer: The SCK-200 units are built to be fairly robust with the modular design making the key components easily replaceable. That said, if robustness is a critical factor, then a commercial spin coater would be a better option.
10. Is it possible to heat the chuck/stage and attach a temperature control unit?
Answer: No, such functionality can only be found in commercial Spin Coaters.
11. Does the SCk-200 Digital Controller use an open-loop or closed-loop method for speed control?
Answer: The Digital Controller uses an open loop method for speed control since the ESC (Electronic Speed Controller), by design, does a good job of maintaining the set speed based on our testing. However, you could use an Arduino to build a closed-loop controller if desired.