G. Debt

Loan Agreement

On March 31, 2009, Teradyne K.K., Teradyne's wholly-owned subsidiary in Japan, entered into a loan agreement with a local bank in Japan to borrow approximately $10.0 million. The loan has a term of 5 years and a fixed interest rate of 0.81%. Approximately $6.0 million of the loan is collateralized by a real estate mortgage on Teradyne K.K.'s building and land in Kumamoto, Japan and approximately $4.0 million is unsecured. Teradyne, Inc. has guaranteed payment of the loan obligation. The loan is amortized over the term of the loan with semiannual principal payments of approximately $1.0 million payable on September 30 and March 30 each year. At April 1, 2012, approximately $2.4 million of the outstanding loan principal is included in current debt and approximately $2.4 million is classified as long-term debt.

Convertible Senior Notes

In April 2009, Teradyne issued 4.50% convertible senior notes (the "Notes") at an aggregate principal amount of $190 million. The Notes will mature on March 15, 2014, unless earlier repurchased by Teradyne or converted. The Notes are senior unsecured obligations and rank equally with all of Teradyne's existing and future senior debt and senior to any of Teradyne's subordinated debt.

The Notes may be converted, under certain circumstances and during certain periods, at an initial conversion rate of approximately 182.65 shares of Teradyne's common stock per $1,000 principal amount of Notes, which is equivalent to an initial conversion price of approximately $5.48, a 25% conversion premium based on the last reported sale price of $4.38 per share of Teradyne's common stock on March 31, 2009.The conversion rate is subject to adjustment in certain circumstances.

During the three months ended April 1, 2012, the following circumstance that allows holders to convert their Notes at their option prior to December 15, 2013 occurred: the last reported sale price of Teradyne's common stock for 20 or more trading days in a period of 30 consecutive trading days ending on the last trading day of the immediately preceding calendar quarter exceeded 130% of the conversion price in effect on the last trading day of the immediately preceding calendar quarter. As of May 11, 2012, no holders have exercised their option to convert their Notes.

Concurrently with the offering of the Notes, Teradyne entered into a convertible note hedge transaction with a strike price equal to the initial conversion price of the Notes, or approximately $5.48. The convertible note hedge allows Teradyne to receive shares of its common stock and/or cash related to the excess conversion value that it would pay to the holders of the Notes upon conversion. The convertible note hedges will cover, subject to customary antidilution adjustments, approximately 34,703,196 shares of Teradyne's common stock. Teradyne paid approximately $64.6 million for the convertible note hedges.

Separately, Teradyne entered into a warrant transaction with a strike price of approximately $7.67 per share, which was 75% higher than the closing price of Teradyne's common stock on March 31, 2009. Teradyne received approximately $43.0 million for the warrants.

The convertible note hedge and warrant transaction will generally have the effect of increasing the conversion price of the Notes to approximately $7.67 per share of Teradyne's common stock, representing a 75% conversion premium based upon the closing price of Teradyne's common stock on March 31, 2009.

The Notes are classified as long-term debt in the balance sheet at April 1, 2012 and December 31, 2011. The tables below represent the components of Teradyne's convertible senior notes:


	April 1, 2012		December 31, 2011
	(in thousands)
Debt principal	$	190,000	$	190,000
Unamortized debt discount		30,627		33,902

Net carrying amount of the convertible debt	$	159,373	$	156,098


	For the Three Months Ended
	April 1, 2012		April 3, 2011
	(in thousands)
Contractual interest expense	$	2,161	$	2,209
Amortization of the discount component and debt issue fees		3,479		3,061

Total interest expense on the convertible debt	$	5,640	$	5,270

As of April 1, 2012, the unamortized discount was $30.6 million, which will be amortized over approximately 2.0 years, and the carrying amount of the equity component was $63.4 million. As of April 1, 2012, the conversion rate was equal to the initial conversion price of approximately $5.48 per share and the if-converted value of the Notes was $586.1 million.