If you are interested in becoming a sperm donor, we wish to thank you for this generous gesture. Filling out a sperm donor application and becoming a sperm donor with the Fertility Center of California, Sperm Bank Inc., is a simple process for qualified candidates.fter you submit your online sperm donor application, we will review your information. If you are a qualified candidate, we will send you the second part of the application, which asks for more detailed information. Please complete part 2 of the application.