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- Path: sparky!uunet!gatech!hubcap!ncrcae!ncrlnk!ncr-mpd!Don.Allingham
- From: Don.Allingham@FtCollins.NCR.COM (Don Allingham)
- Newsgroups: comp.lsi.testing
- Subject: Design vs. Test (was Re: Change this Group Name?)
- Message-ID: <DON.ALLINGHAM.92Aug27071222@bbking.FtCollins.NCR.COM>
- Date: 27 Aug 92 06:12:22 GMT
- References: <l9ko46INNls@bashful.crhc.uiuc.edu> <1992Aug25.183729.27815@venus.ic.cmc.ca>
- <veit.714837724@du9ds3>
- Sender: uucp@ncr-mpd.FtCollins.NCR.COM
- Reply-To: Don.Allingham@FtCollinsCO.NCR.COM
- Organization: /home/bbking/dona/.organization
- Lines: 33
- In-reply-to: veit@du9ds3.uni-duisburg.de's message of 26 Aug 92 14:02:04 GMT
-
-
- Holger> I cannot imagine that everyone is interested in design
- Holger> (comp.lang.vhdl, comp.lang.verilog, comp.sys.mentor, comp.lsi*),
- Holger> but nobody in testing of all the stuff produced.
-
- Unfortunately, this seems to be the view most seem to have. Many
- designers seem to think test is something that can be held off until the
- end or "thrown over the wall" to someone else. *Many* designers do not
- think about test at all. They use no structured test (BIST, scan, JTAG)
- and do not even fault grade, but assume that a few functional tests will
- ensure that their 30,000 gate circuit works properly. You can usually
- tell who the really experienced designers are. They are the ones who
- are worried about test up front.
-
- I believe that this can be traced back to universities. I had many
- classes dealing with design, from the transistor level to the system
- level. My total exposure to test was a 50 minute lecture that briefly
- touched on LSSD. If I had not been in a cooperative education program,
- I would have shared the misconception of many of my classmates who
- assumed that every die on a wafer was good.
-
- Hopefully, someday all designers will realize that test needs to be
- considered up front, and that no tool exists that will generate 100%
- stuck-at fault coverage without modifying their 50,000 gate asynchronous
- design.
-
- Thank you. I will now step off my soap box.
-
- --
- Don Allingham
- NCR Microelectronics Don.Allingham@FtCollins.NCR.com
- Ft. Collins, CO. uunet!ncrlnk!ncr-mpd!Don.Allingham
-
-