The charter of Fairchild Semiconductor of Maine Federal Credit Union was approved by the Bureau of Federal Credit Unions on May 10, 1966 and given charter number 17436. At that time, persons eligible to join the credit union included “employees of Fairchild Semiconductor who work in South Portland or Portland, Maine; members of this credit union who are retired as annuitants from the above employment and retain their membership in this credit union; employees of this credit union; members of their immediate families; and organizations of such persons.”