1. Microcircuit. Wikipedia. 2009.
  2. Photolithography. Wikipedia. 2009.
  3. Plastic Encapsulated Microcircuits (PEMs’). Selected Topics in Assurance Related Technologies. Volume 2. No. 1. 1995.
  4. PEM-INST-001: Instructions for Plastic Encapsulated Microcircuit (PEM) Selection, Screening, and Qualification. Dr. Alexander Teverovsky and Dr. Kusum Sahu. NASA. June 2003.
  5. NASA Goddard Space Flight Center Experiment 7: Matte Tin Plated IC Leadframe Examination. NASA. April 20, 2005.
  6. Plastic Encapsulated Microcircuit (PEM) Derating, Storage, and Qualification Report. Report No: TR04-0600. NASA Electronics Parts and Packaging Program.
  7. The Case for Plastic-Encapsulated Microcircuits in Spaceflight Applications. Andrew F. Moor, et al. John’s Hopkins Applied Physics Laboratory Technical Digest, Volume 20, Number 1. 1999.