To half of the 1990 AMD begins to sell your 80C287
product with technology CMOS, this it is the meaning of the
letter C. The diffusion is only partial because Intel starts
a cause on the Copyright of the microcode.
287 Microcode Litigation
Copyright infringement action brought by Intel against AMD; District
Court of the Northern District of California.
- September 23, 1990 Intel sought injunctive relief and
respect to AMD’s 80C287, a math coprocessor designed to
function with the 80286. Intel claimed copyright infringement by AMD
on Intel microcode.
- June 17, 1992 Jury determined that AMD did not have the
right to use
Intel microcode in the 80C287.
- April 15, 1993 Court granted AMD a new trial, finding that
committed discovery abuse.
- March 10, 1994 Jury in new trial returned verdict in favor
finding that AMD had the right to use Intel’s microcode in
its x86 microprocessors through the 486 generation (1989).