[SI-LIST] Re: Pin/bump # of a chip
- From: steve weir <weirsp@xxxxxxxxxx>
- To: lluo3@xxxxxxxxxxxxxx, <si-list@xxxxxxxxxxxxx>
- Date: Tue, 14 Sep 2004 05:44:29 -0700
Lei, go check some of the monster CPU chips, or ASSPs. There are some
packages out there with 2000+ bumps.
Steve.
At 08:38 AM 9/14/2004 -0400, lei luo wrote:
>Hi,
>I am trying to find out which chip has the largest pin/bump numbers so
>far. Virtex4 FPGA has 960 signal I/Os(480pairs). Have you see any other
>chips having larger pin/bump numbers? And how much signal I/Os do they
>have? I imaging advanced ASIC chips will have more pins.
>
>Pin/bump number is mainly constrained by packaging issue and routing
>density of PCB. We are trying to find some other way to enable much higher
>"Pin" density.
>
>Thanks in advance,
>
>Lei Luo
>Research Assistant
>ECE @ NC State Univ.
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