<PAGE>
PROSPECTUS SUPPLEMENT FILED PURSUANT TO RULE 424(b)(4)
TO PROSPECTUS DATED MAY 22, 2000 REGISTRATION NO. 333-36112
$345,000,000
TRIQUINT SEMICONDUCTOR, INC.
4% CONVERTIBLE SUBORDINATED NOTES DUE 2007
AND SHARES OF COMMON STOCK
This prospectus supplement relates to the resale by the selling
securityholders of 4% convertible subordinated notes due 2007 of TriQuint
Semiconductor, Inc. and the shares of common stock, par value of $0.001 per
share, of TriQuint Semiconductor, Inc. issuable upon the conversion of the
notes.
This prospectus supplement should be read in conjunction with the
prospectus dated May 22, 2000, which is to be delivered with this prospectus
supplement. All capitalized terms used but not defined in the prospectus
supplement shall have the meanings given them in the prospectus.
The table below sets forth information as of the date hereof concerning
beneficial ownership of the notes of the selling securityholders as listed
below. All information concerning beneficial ownership has been furnished by the
selling securityholders.
<TABLE>
<CAPTION>
PRINCIPAL AMOUNT
OF NOTES NUMBER OF SHARES
BENEFICIALLY PERCENTAGE OF OF COMMON STOCK PERCENTAGE OF
OWNED THAT MAY BE NOTES THAT MAY BE COMMON STOCK
NAME SOLD OUTSTANDING SOLD(1) OUTSTANDING(2)
--------------------------------------------------- ----------------- ------------- ---------------- --------------
<S> <C> <C> <C> <C>
J.P. Morgan Securities, Inc........................ $2,000,000 * 29,499 *
500 Stanton-Christiana Road
Newark, DE 19317
SG Cowen Securities Corp.(3)....................... 1,500,000 * 22,124 *
Financial Square, 25th Floor
New York, NY 10005
Allstate Insurance Company......................... 700,000 * 10,324 *
3075 Sanders Road, Suite G6B
Northbrook, IL 60062-7127
Donaldson, Lufkin & Jenrette Securities
Corporation.................................... 500,000 * 7,375 *
401 City Avenue, Suite 210
Bala Cynwyd, PA 19004
</TABLE>
---------------------
* Less than 1%
(1) Assumes conversion of the full amount of notes held by such holder at the
current conversion price of $67.80 per share; such conversion price is
subject to adjustment as described under "Description of Notes --
Conversion of Notes." The initial conversion price of $135.60 per share of
common stock has been adjusted to reflect the two-for-one forward stock
split effected by TriQuint as a stock dividend on July 11,2000 to
stockholders of record on June 19, 2000. Accordingly, the number of shares
of common stock issuable upon conversion of the Notes may increase or
decrease from time to time. Under the terms of the Indenture, fractional
shares will not be issued upon conversion of the notes; cash will be paid
in lieu of fractional shares, if any.
(2) Computed in accordance with Rule 13d-3(d)(i) promulgated under the Exchange
Act and based upon 76,774,278 shares of common stock outstanding as of
April 3, 2000, treating as outstanding the number of shares of common stock
shown as being issuable upon the assumed conversion by the named holder of
the full amount of such holder's notes but not assuming the conversion of
the notes of any other holder. The number of shares outstanding on April 3,
2000 as presented reflects the two-for-one forward stock split effected by
TriQuint on July 11, 2000 through a stock dividend to stockholders of
record on June 19, 2000.
(3) SG Cowen Securities Corp. has acted an underwriter for an issuance of our
securities within the past three years. The amounts presented herein are in
addition to those reported by the selling securityholder in the prospectus
dated May 22, 2000 and the prospectus supplements dated June 16, 2000 and
June 29, 2000.
INVESTING IN THE SECURITIES OFFERED HEREBY INVOLVE A HIGH DEGREE OF
RISK. SEE "RISK FACTORS" BEGINNING ON PAGE 8 OF THE PROSPECTUS.
THE SECURITIES AND EXCHANGE COMMISSION AND STATE SECURITIES
REGULATORS HAVE NOT APPROVED OR DISAPPROVED OF THESE
SECURITIES OR DETERMINED IF THIS PROSPECTUS IS TRUTHFUL
OR COMPLETE. ANY REPRESENTATION TO THE
CONTRARY IS A CRIMINAL OFFENSE.
----------
The date of this Prospectus Supplement is July 14, 2000.
