By Wintech Nano-Technology Services Pte. Ltd.
Project definition: Chemical opening of plastic encapsulation. Because of the use of copper wire/silver wire/aluminum wire/three or five groups, laser opening steps are required. Note that copper wire and silver wire may be corroded. Application advantages: retain the electrical connectivity of the gold wire, and EFA can be done later; All opened, can retain the first and second solder joints of the gold wire.
