Microchip is listed on the "Jewish Supers List" (http://blaklion.best.vwh.net/jew.html; viewed 23 December 2005).
From: Steven M. Bergson, "Jewish Comics: A Select Bibliography" last updated 28 June 2005 (http://www.geocities.com/safran-can/JWISHC.HTM; viewed 23 December 2005):
Baron, Mike. "Philanthropy" Punisher Annual #3 (3rd story) (NY: Marvel, 1990)From "Microchip" page on "Marvel Infinity: An Unofficial Fan Site Dedicated to the History of the Marvel Universe" website (http://members.fortunecity.com/dm_bishop2/marvel/microchip.html; viewed 23 December 2005):
Microchip (the Punisher's aide) goes against an organization that is posing as a charity to defraud retirees after he learns about the scheme from one of the victims (his neighbor, Mrs. Rosen).
Current Status: Deceased
Real Name: Linus Lieberman
History: Microchip is probably the only friend and confidante that The Punisher has. A former weapons engineer, Microchip made his living as a mechanic, computer hacker and expert inventor, and built most of The Punisher's arsenal.
Throughout the years, Micro had been The Punisher's sidekick on many missions and the brains behind a lot of the Punisher's operations. Microchip had also become a target over the years by many of The Punihser's enemies. One such enemy was the Kingpin, Kingpin had Micro kidnapped and held as a prisoner, cutting his finger off and sending it to The Punisher in the mail.
Microchip was killed by Sudden Death, a rogue SHIELD agent.