🚀 go-pugleaf

RetroBBS NetNews Server

Inspired by RockSolid Light RIP Retro Guy

Article View: alt.sys.pdp8
Article #37

Re: Flip-Chips (was Re: FAQ)

#37
From: Douglas W. Jones,201H MLH,319335...
Date: Mon, 05 Oct 1992 13:47
28 lines
1963 bytes
From article <1992Oct5.075414.18772@news.columbia.edu>,
by lasner@watsun.cc.columbia.edu (Charles Lasner):
> 
> In any case, the Flip-Chip notion is a legend in itself.  For some reason,
> undue emphasis is given to a detail of the implementation of some module
> series, mostly R-series, but S and probably B as well *might* have this.

There's another side to this legend, though.  Originally, in the 1965 era,
the word flip-chip was a reference to the hybrid integrated circuits DEC
was trying to use.  By the end of the decade, though, DEC was assertively
referring to the logic modules themselves as flip chips.  Thus, every M
series logic module I've got seems to say FLIP CHIP across the top of the
module right under the handle (except the M211, which says DEC FLIP CHIP).
It seems clear that by 1970, DEC wanted people to call the modules
themselves flip chips.

On another topic, IBM, with the introduction of the IBM System 360 in 1965,
declared the birth of the third generation of computers.  (The number 360
was a marketing ploy in itself, standing for "a third generation machine
for the 1960's"; that's why they had to renumber to 370 when the new decade
came.)

IBM said that third generation machines were characterized by integrated
circuits, but the System 360 only had hybrid integrated circuits, not
monolithic circuits.  By this standard, the Classic PDP-8 could be called
a third generation machine!
				Doug Jones
				jones@cs.uiowa.edu
Technical Details
Message-ID: <1992Oct5.134702.7667@news.uiowa.edu>
Path: arc1-ca.pugleaf.net!sparky!uunet!news.uiowa.edu!news
References: <1992Oct5.075414.18772@news.columbia.edu>

Show Full Headers
Complete Article Headers
Newsgroups: alt.sys.pdp8
Path: arc1-ca.pugleaf.net!sparky!uunet!news.uiowa.edu!news
From: jones@pyrite.cs.uiowa.edu (Douglas W. Jones,201H MLH,3193350740,3193382879)
Subject: Re: Flip-Chips (was Re: FAQ)
Sender: news@news.uiowa.edu (News)
Message-ID: <1992Oct5.134702.7667@news.uiowa.edu>
Date: Mon, 5 Oct 1992 13:47:02 GMT
References: <1992Oct5.075414.18772@news.columbia.edu>
Nntp-Posting-Host: pyrite.cs.uiowa.edu
Organization: University of Iowa, Iowa City, IA, USA
Lines: 28