Tell me about the process of the polar zone on the back side of the compact package CST8, VQON16 / 20 / 24.
It is recommended that the polar zones in the center of the back of CST and the center and four corners of the back of VQON16 / 20 / 24 are left open when they are used.
When these parts are electrically connected, please contact "Contact Us"at the upper left of the web page.