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Home > Offers to Sell > Industrial Machinery & Equipment > Other Industrial Equipment > Other Industrial Equipment
| Contact: | bymicro |
|---|---|
| Company: | Suzhou Boyang Chemical Co., Ltd. |
| No. 155, Gaohuaqiao Road, Xushuguan Town, High-tech Zone, Suzhou City | |
| suzhou 215151 | |
| China | |
| Phone: | 18913136896 |
| E-Mail: |   |
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| Date/Time: | 2/12/26 9:46 GMT |
KOH Developer
https://www.by-micro.com/products/koh-develope , r.html
Description
The main components of KOH developer, KOH, surfactant and metal protective
agent, can dissolve the uncured part of the photoresist and develop the part
exposed to ultraviolet light, with faster development speed and higher
selectivity. The optimal pH value for development is between 12-13. In
addition, the developer also contains some auxiliary agents such as surfactants
and antioxidants, which can also improve the performance of the developer and
improve the development effect and stability. However, potassium hydroxide
series developers contain mobile ion contamination (MIC), which is not suitable
for high-performance display panels and integrated circuit industries that are
very sensitive to pollution.
Features
1. Strong alkalinity: KOH completely ionizes in water to generate K+ and OH−
ions, which are highly alkaline and can react quickly with acidic substances or
certain organic materials.
2. High development efficiency: KOH developer has a high development rate for
certain photoresists (such as positive photoresists) and can quickly dissolve
unexposed parts.
3. Low cost: KOH is a common inorganic base with a relatively low price, so it
has advantages in certain cost-sensitive applications.
4. Metal ion residues: KOH developer contains potassium ions (K+), which may
remain on the wafer or substrate and have an adverse effect on the performance
of semiconductor devices.
Application
1. Semiconductor manufacturing: In the early photolithography process, KOH
developer was widely used for the development of positive photoresist, but as
the purity and performance requirements of semiconductor processes increased,
KOH was gradually replaced by metal-free developers such as TMAH.
2. Printed circuit boards (PCBs): In PCB manufacturing, KOH developer is used
to remove unexposed photoresist and form circuit patterns.
3. Micro-electromechanical systems (MEMS): KOH developer is also used in MEMS
processes, such as anisotropic etching of silicon wafers.
SOURCE: Import-Export Bulletin Board (https://www.imexbb.com/)
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