Teradyne and Nextest Systems Corp. Announce Early Termination of Hart-Scott-Rodino...

Teradyne and Nextest Systems Corp. Announce Early Termination of Hart-Scott-Rodino Waiting Period

NORTH READING, Mass.--(Business Wire)--Teradyne, Inc. (NYSE: TER) and Nextest Systems Corporation
(NASDAQ: NEXT) jointly announced today that the Federal Trade
Commission has granted early termination of the waiting period under
the Hart-Scott-Rodino (HSR) Antitrust Improvements Act of 1976, as
amended, with respect to Teradyne's tender offer for the outstanding
shares of Nextest Systems Corporation.

On December 21, 2007, NAC Equipment Corporation, a direct wholly
owned subsidiary of Teradyne, commenced a tender offer to acquire all
outstanding shares of common stock of Nextest, at a price of $20.00
per share, in cash, pursuant to a previously announced Agreement and
Plan of Merger among Teradyne, NAC, and Nextest dated December 11,
2007. The tender offer and any withdrawal rights to which Nextest's
stockholders may be entitled will expire at midnight, New York City
time at the end of January 23, 2008, unless the offer is extended.

About Teradyne, Inc.

Teradyne (NYSE:TER) is a leading supplier of Automatic Test
Equipment used to test complex electronics used in the consumer
electronics, automotive, computing, telecommunications, and aerospace
and defense industries. In 2006, Teradyne had sales of $1.36 billion
from continuing operations, and currently employs about 3,600 people
worldwide. For more information, visit www.teradyne.com. Teradyne (R)
is a registered trademark of Teradyne, Inc. in the U.S. and other
countries. All product names are trademarks of Teradyne, Inc.
(including its subsidiaries).

About Nextest Systems Corp.

Nextest is a low-cost leader in the design and manufacture of
Automatic Test Equipment (ATE) for flash memory and System-On-Chip
semiconductors. Nextest's products address the growing demand from
manufacturers for ATE with increased throughput, functionality and
reliability, while reducing time to market and cost of test. Nextest
has shipped over 1,900 systems to more than 70 semiconductor companies
worldwide. Further information is available at www.nextest.com.

Notice To Investors

This press release is for informational purposes only and is not
an offer to purchase nor a solicitation of an offer to sell
securities. The solicitation and the offer to purchase shares of
Nextest common stock are being made only pursuant to the Offer to
Purchase, Letter of Transmittal and related materials that Teradyne,
Inc. and NAC Equipment Corporation have filed with the SEC on a Tender
Offer Statement on Schedule TO. Nextest also has filed a
Solicitation/Recommendation Statement on Schedule 14D-9. Nextest
stockholders and other investors should read these materials carefully
because they contain important information, including the terms and
conditions of the offer. Additionally, stockholders and other
investors are urged to read carefully those materials prior to making
any decisions with respect to the offer. Nextest stockholders and
other investors may obtain copies of these materials without charge
from the SEC through the SEC's website www.sec.gov, from Georgeson,
Inc., the information agent for the offer, at (800) 733-6092 (banks
and brokers at (212) 440-9800), from Goldman Sachs, the Dealer Manager
for the tender offer, toll-free at (800) 323-5678 or collect at (212)
902-1000, or from Teradyne, Inc., Investor Relations, 600 Riverpark
Drive, North Reading, Massachusetts 01864.

Safe Harbor Statement

The forward-looking statements included in this release are made
only as of the date of publication. Except as otherwise required by
law, Teradyne disclaims any intention or obligation to update any
forward-looking statements as a result of development occurring after
the date of this press release.

This release contains forward-looking statements regarding the
proposed acquisition of Nextest, the expected timetable for completing
the transaction, future business prospects and market conditions and
benefits and synergies of the transaction. Such statements are based
on the current assumptions and expectations of Teradyne's management
and are neither promises nor guarantees. You can generally identify
these forward-looking statements based on the context of the
statements and by the fact that they use words such as "will,"
"anticipate," "expect," "project," "intend," "plan," "believe,"
"target" and other words and terms of similar meaning in connection
with any discussion of future operating or financial performance.
There can be no assurance that management's estimates of our future
results will be achieved. Important factors that could cause actual
results to differ materially from those presently expected include:
conditions affecting the markets in which Nextest operates; the
uncertainty of regulatory approvals; the parties' ability to satisfy
the tender offer and merger agreement conditions and consummate the
transaction; Teradyne's ability to successfully integrate Nextest's
operations with its existing operations; the ability to realize
anticipated synergies and cost savings; and other events, factors and
risks previously and from time to time disclosed in filings with the
SEC, including, but not limited to, Teradyne's annual report on Form
10-K for the fiscal year ended December 31, 2006 and Nextest's annual
report on Form 10-K for the fiscal year ended June 30, 2007.

Teradyne, Inc.
Tom Newman, 978-370-2425
VP, Corporate Relations
or
Nextest Systems Corp.
GEM Agency
Connie Berar, 408-529-4694

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