Patent ID: 11966551
Assignee: MICRON OPTOELECTRONICS CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 1:
2. The method of claim 1, wherein the operation of blackening the first functional electrode layer and the second functional electrode layer respectively to obtain the targeted first functional electrode layer and the targeted second functional electrode layer comprises:
soaking the first functional electrode layer and the second functional electrode layer in a blackening liquid for blackening;
wherein compositions of the blackening liquid are as follow: selenite is between 0.1% and 2.5%, persulfate is between 1% and 10%, copper ionic solution is between 0.01% and 1%, sodium ionic solution is between 0.01% and 1%, rest of the compositions of the blackening liquid is water.