Cadence Design Systems said a federal judge has re-emphasized a ruling from last month, warning design automation customers that they would be exposed to copyright violation claims if they continue to use Avant's ArcCell software.
U.S. Judge Ronald B. Whyte in San Jose, Calif., granted a request from Cadence to clarify and reinforce his Dec. 19 preliminary injunction ruling against Avant's ArcCell product. Cadence, which has accused Avant of stealing its source code, said it requested a clarification from Judge Whyte after Avant issued statements saying customers were not prevented from using ArcCell if they desired.
Avant has maintained that ArcCell is a discontinued product and that its current place-and-route design software does not contain Cadence source code. Last month, the Fremont, Calif.-based EDA supplier said the preliminary injunction ruling will not impact its customers.
Cadence said the judge has ordered Avant to send a copy of the ruling to all current or former customers of the products, instructing them to return or destroy the software. Avant must also provide Cadence with a list of all customers with a functional copy of such products by Fri., Jan. 30, according to Cadence.