Advanced Micro Devices (AMD) sees its planned acquisition of ATI Technologies as a way to expand its ability to compete in the microprocessor industry. Intel sees it as a way to expand its defense in a microprocessor antitrust case it is fighting against AMD. The case dates back to June 2005, when AMD of Sunnyvale, Calif., filed an antitrust suit against Intel of Santa Clara, Calif., alleging that the company used its dominance of the x86 microprocessor market to discourage PC manufacturers and retailers from buying AMD\u2019s processors.On Thursday, Intel asked the U.S. District Court for the District of Delaware for permission to serve a subpoena on graphics chipset manufacturer ATI. Intel is seeking documents that will shed light on how AMD\u2019s planned acquisition of ATI will affect its ability to compete in the microprocessor market.Intel contends that AMD is solely responsible for AMD\u2019s business failures and successes. It said the ATI documents it wants to see are directly relevant to its defense, because they relate to AMD\u2019s past and future ability to compete.The court had previously set a deadline of June 15 for filing such subpoena requests, but Intel has asked to file a late subpoena request on ATI of Markham, Ontario. Intel justified the late request by saying it could not have known before the deadline passed that the documents held by ATI would become so significant, as AMD\u2019s plan to buy ATI was not publicly announced until July 24.In the request, Intel said it wanted access to documents showing, among other things: \n\nthe transaction\u2019s strategic rationale\n\nthe effect of the acquisition on competition in chipsets, graphics chips and microprocessors\n\nthe effect of the transaction on Intel\u2019s or AMD\u2019s business practicesAMD\u2019s legal counsel did not object to the request to file the subpoena, Intel wrote in its filing.-Peter Sayer, IDG News Service (Paris Bureau)Related Links:\n\nAMD Says It Will Purchase ATI for $5.4BCheck out our CIO News Alerts and Tech Informer pages for more updated news coverage.