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Risks and Uncertainties | 12 Months Ended
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Dec. 29, 2018
Risks and Uncertainties |
Risks and Uncertainties | 7. Risks and Uncertainties Financial Instruments Financial instruments that potentially subject the Company to significant concentrations of credit risk consist primarily of cash equivalents, investments, accounts receivable, notes receivable and derivatives. The Company places its cash equivalents and investments primarily in municipal bonds, money market funds, corporate bonds, variable-rate demand notes, U.S. government securities, agency securities, asset-back securities, certificates of deposit, commercial paper, auction-rate securities and international government bonds. Concentrations of credit risk with respect to accounts receivable are primarily due to customers with large outstanding balances. The Company's customers that accounted for greater than 10% of accounts receivable consisted of the following:
|  | December 29, 2018 |  | December 30, 2017 |
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Arrow Electronics |  |  | 12 | % |  | 14 | %
Edom Technology |  |  | 10 | % |  | * |
Avnet |  |  | — |  |  | 16 | %
* Less than 10% of accounts receivable The Company performs periodic credit evaluations of its customers' financial condition and generally requires no collateral from its customers. The Company provides an allowance for potential credit losses based upon the expected collectibility of such receivables. Losses have not been significant for any of the periods presented. The Company holds three notes receivable from two privately held companies. The total carrying value of the notes was $2.4 million as of December 29, 2018, which was recorded in other assets, net in the Consolidated Balance Sheet. The Company holds two equity investments in privately held companies. One investment is accounted for using the equity method and had a carrying value of $4.1 million as of December 29, 2018. The second investment is recorded at cost minus impairment and had a carrying value of $2.0 million as of December 29, 2018. In fiscal 2018, the Company reduced the carrying value of the second investment by $1.8 million, which was recorded in interest income and other, net in the Consolidated Statements of Income. Both investments were recorded in other assets, net in the Consolidated Balance Sheet. As a result of its use of derivative instruments, the Company is exposed to the risk that its counterparties will fail to meet their contractual obligations. To mitigate this counterparty credit risk, the Company has a policy to enter into contracts with only selected major financial institutions. The Company periodically reviews and re-assesses the creditworthiness of such counterparties based on a variety of factors. Distributor Advances On sales to distributors, the Company's payment terms often require the distributor to initially pay amounts owed to the Company for an amount in excess of their ultimate cost. The Company's sales price to its distributors may be higher than the amount that the distributors will ultimately owe the Company because distributors often negotiate price reductions after purchasing the product from the Company and such reductions are often significant. These negotiated price discounts are not granted until the distributor sells the product to the end customer, which may occur after the distributor has paid the original invoice amount to the Company. Payment of invoices prior to receiving an associated discount can have an adverse impact on the working capital of the Company's distributors. Accordingly, the Company has entered into agreements with certain distributors whereby it advances cash to the distributors to reduce the distributor's working capital requirements. The advance amounts are based on the distributor's inventory balance, and are adjusted quarterly. Such amounts are recorded in prepaid expenses and other current assets in the Consolidated Balance Sheet. The terms of these advances are set forth in binding legal agreements and are unsecured, bear no interest on unsettled balances and are due upon demand. The agreements governing these advances can be cancelled by the Company at any time. Suppliers A significant portion of the Company's products are fabricated by Taiwan Semiconductor Manufacturing Co. (TSMC) or Semiconductor Manufacturing International Corporation (SMIC). The inability of TSMC or SMIC to deliver wafers to the Company on a timely basis could impact the production of the Company's products for a substantial period of time, which could have a material adverse effect on the Company's business, financial condition, results of operations and cash flows. Customers The Company sells directly to end customers, distributors and contract manufacturers. Although the Company actually sells the products to, and is paid by, distributors and contract manufacturers, the Company refers to the end customer as its customer. None of the Company's end customers or contract manufacturers accounted for greater than 10% of revenue during fiscal 2018, 2017 or 2016. The Company's distributors that accounted for greater than 10% of revenue consisted of the following:
|  | Year Ended |
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|  | December 29, 2018 |  | December 30, 2017 |  | December 31, 2016 |
Arrow Electronics |  |  | 21 | % |  | 12 | % |  | 11 | %
Edom Technology |  |  | 17 | % |  | 19 | % |  | 17 | %
Avnet |  |  | * |  |  | 14 | % |  | 13 | %
* Less than 10% of revenue

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- Definition The entire disclosure for any concentrations existing at the date of the financial statements that make an entity vulnerable to a reasonably possible, near-term, severe impact. This disclosure informs financial statement users about the general nature of the risk associated with the concentration, and may indicate the percentage of concentration risk as of the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -URI http://asc.fasb.org/topic&trid=2134479 + Details
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