Exhibit 10.52 LOAN MODIFICATION AGREEMENT This Loan Modification Agreement is entered into as of May 23, 2001, by and between Spectrian Corporation ("Borrower") and Silicon Valley Bank ("Bank"). 1. DESCRIPTION OF EXISTING INDEBTEDNESS: Among other indebtedness which may be owing by Borrower to Bank, Borrower is indebted to Bank pursuant to, among other documents, an Amended and Restated Loan and Security Agreement, dated August 9, 1999, as may be amended from time to time, (the "Loan Agreement"). The Loan Agreement provided for, among other things, a Committed Revolving Line in the original principal amount of Ten Million Dollars ($10,000,000). Defined terms used but not otherwise defined herein shall have the same meanings as set forth in the Loan Agreement. Hereinafter, all indebtedness owing by Borrower to Bank shall be referred to as the "Indebtedness." 2. DESCRIPTION OF COLLATERAL. Repayment of the Indebtedness is secured by the Collateral as described in the Loan Agreement. Hereinafter, the above-described security documents and guaranties, together with all other documents securing repayment of the Indebtedness shall be referred to as the "Security Documents". Hereinafter, the Security Documents, together with all other documents evidencing or securing the Indebtedness shall be referred to as the "Existing Loan Documents". 3. DESCRIPTION OF CHANGE IN TERMS. A. Modification(s) to Loan Agreement. 1. Subsection (ii) entitled "Debt/Tangible Net Worth Ratio" under Section 6.7 entitled "Financial Covenants" is hereby deleted and replaced with "Intentionally Omitted". 2. Subsection (iii) under Section 6.7 entitled "Financial Covenants" is hereby amended in its entirety to read as follows: (iii) Profitability. Borrower will have a minimum net profit of $1 for each quarter net of any realized gain or loss on the sale of the shares of CREE Inc. common stock. 3. The following defined term under Section 13.1 entitled "Definitions" is hereby amended to read as follows: "Revolving Maturity Date" is June 30, 2002. 4. CONSISTENT CHANGES. The Existing Loan Documents are hereby amended wherever necessary to reflect the changes described above. 5. NO DEFENSES OF BORROWER. Borrower (and each guarantor and pledgor signing below) agrees that, as of the date hereof, it has no defenses against the obligations to pay any amounts under the Indebtedness. 6. PAYMENT OF LOAN FEE. Borrower shall pay Bank a fee in the amount of Twenty Five Thousand and 00/100 Dollars ($25,000.00) ("Loan Fee") plus all out-of-pocket expenses. 7. CONCERNING REVISED ARTICLE 9 OF THE UNIFORM COMMERCIAL CODE. The Borrower affirms and reaffirms that notwithstanding the terms of the Security Documents to the contrary, (i) that the definition of "Code", "UCC" or "Uniform Commercial Code" as set forth in the Security Documents shall be deemed to mean and refer to "the Uniform Commercial Code as adopted by the State of California, as may be amended and in effect from time to time and (ii) the Collateral is all assets of the Borrower. In connection therewith, the Collateral shall include, without limitation, the following categories of assets as defined in the Code: goods (including inventory, equipment and any accessions thereto), instruments (including promissory notes), documents, accounts (including health-care-insurance receivables, and license fees), chattel paper (whether tangible or electronic), deposit accounts, letter-of-credit rights (whether or not the letter of credit is evidenced by a writing), commercial tort claims, securities and all other investment property, general intangibles (including payment intangibles and software), supporting obligations and any and all proceeds of any thereof, wherever located, whether now owned or hereafter acquired. 8. CONTINUING VALIDITY. Borrower (and each guarantor and pledgor signing below) understands and agrees that in modifying the existing Indebtedness, Bank is relying upon Borrower's representations, warranties, and agreements, as set forth in the Existing Loan Documents. Except as expressly modified pursuant to this Loan Modification Agreement, the terms of the Existing Loan Documents remain unchanged and in full force and effect. Bank's agreement to modifications to the existing Indebtedness pursuant to this Loan Modification Agreement in no way shall obligate Bank to make any future modifications to the Indebtedness. Nothing in this Loan Modification Agreement shall constitute a satisfaction of the Indebtedness. It is the intention of Bank and Borrower to retain as liable parties all makers and endorsers of Existing Loan Documents, unless the party is expressly released by Bank in writing. Unless expressly released herein, no maker, endorser, or guarantor will be released by virtue of this Loan Modification Agreement. The terms of this paragraph apply not only to this Loan Modification Agreement, but also to all subsequent loan modification agreements. 9. CONDITIONS. The effectiveness of this Loan Modification Agreement is conditioned upon payment of the Loan Fee. This Loan Modification Agreement is executed as of the date first written above. BORROWER: BANK: SPECTRIAN CORPORATION SILICON VALLEY BANK By: /s/ Michael D. Angel By: /s/ Meg Piper --------------------------------- -------------------------------- Name: Michael D. Angel Name: Meg Piper ------------------------------- ------------------------------- Title: Chief Financial Officer Title: Assistant V.P. ------------------------------ -----------------------------