POWER INTEGRATIONS INC | 2013 | FY | 3


TRANSACTIONS WITH THIRD PARTY:

On October 22, 2010, the Company purchased SemiSouth preferred stock for $7.0 million, which represented an approximate 16.0% interest in SemiSouth, a privately-held company. The Company accounted for its investment under the cost method. Also in October 2010, the Company paid $10.0 million as a prepaid royalty in exchange for the right to use SemiSouth's technology. The Company's 2010 agreement with SemiSouth provided, among other things, that the Company had the option to acquire SemiSouth in the future (“Call Option”) and that the Company may be obligated to acquire SemiSouth at a future date if SemiSouth achieved certain financial performance conditions (“Put Option”). The Call and Put Options were intended to result in an acquisition price equal to the estimated fair value of SemiSouth at the time of exercise. Pursuant to an amended agreement entered into in March 2012 in connection with the $18.0 million financing discussed below, the maximum purchase price under the call and put options would not exceed $80.0 million.

In July 2011, SemiSouth obtained $15.0 million of financing through the sale, and concurrent licensing back, of its intellectual property ("IP") with a financing company. In connection with this arrangement, the Company entered into a contingent purchase commitment with the financing company for SemiSouth's IP, which effectively provided a guarantee of the arrangement to the finance company. The contingent purchase commitment required the Company to purchase the IP previously owned by SemiSouth from its new owner for $15.0 million (plus reimbursement of certain expenses) under certain conditions generally relating to SemiSouth's failure to make certain payments or SemiSouth's insolvency.

In March 2012, the Company loaned SemiSouth $18.0 million, and in exchange the Company was issued a promissory note with interest of 2.0%. In consideration for the loan the Company obtained the above-mentioned amendment to its 2010 agreement with SemiSouth which established a maximum purchase price under the call and put options. The Company valued the call option and the loan using Level 3 inputs in its fair-market valuation utilizing the income-approach valuation method. The Company prepared a discounted cash flow analysis using the following unobservable inputs: weighted average cost of capital, long-term revenue growth, control premium, and discount for lack of marketability. The Company then used a Black-Scholes option pricing model to determine the fair value of the Company's purchase option to be approximately $6.2 million and the fair value of the loan to be $11.8 million The Company accreted the discount on the loan as interest income using the interest method over the term of the loan.

Based on SemiSouth's deteriorating financial condition at September 30, 2012, as further evidenced by its closure in the fourth quarter of 2012, the Company determined that its SemiSouth-related assets were impaired as of September 30, 2012. The Company's third quarter 2012 results included an impairment charge of $33.7 million, comprising a write-off of $6.7 million of lease receivables, $7.0 million of preferred stock, a promissory note (net of imputed interest) in the amount of $13.2 million, $6.2 million for the Purchase Option, and other assets of $0.6 million. The Company has also expensed the prepaid royalty of $10.0 million as it no longer expected to use SemiSouth's technology and foresaw no alternative use for it.

In addition, the financing company that owned SemiSouth's intellectual property exercised its contractual rights to put SemiSouth's intellectual property to the Company under the terms of the above-mentioned SemiSouth contingent purchase commitment. Based on SemiSouth's financial situation and its closure in the fourth quarter of 2012, the Company estimated that this intellectual property had no value. Therefore, the Company took a charge of $15.3 million related to this contingent obligation in the third quarter of 2012, and in the fourth quarter of 2012, the Company settled and paid the commitment for $15.2 million to the financing company.

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