system: You are a contract-analysis assistant performing a span-extraction task. You are given an excerpt from a commercial contract and the name of a clause type to locate within it.

Return the exact text of the requested clause, copied verbatim from the excerpt — identical wording and punctuation, with no paraphrasing, summarising, explanation, or added commentary.

The excerpt is one window of a much longer contract and often will not contain the requested clause. If the requested clause does not appear in this excerpt, respond with exactly: Not found.

Output only the extracted clause text, or the exact string `Not found.` — nothing else.

user: Contract excerpt:
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such termination or expiration and remain in full force and effect in accordance with their terms. 15.4 Wind Down Period. (a) Notwithstanding any statement in Section 15.3 to the contrary, upon any termination or expiration of this Agreement and until the later to occur of (i) [***] from the Effective Date or (ii) [***] following the effective date of termination or expiration of this Agreement (the "Wind Down Period"), the parties' respective rights and obligations under Sections 2 (License), 3 (Sourcing), 7 (Product Sales), 9 (Royalties and Service Fees), 11 (Representations and Warranties; Disclaimers), 12 (Indemnification), 13 (Limitation of Liability), 14 (Compliance with Laws), 15.2 (Termination), 16 (Escrow) and all Exhibits hereto which are associated with any of the foregoing listed sections will remain in full force and effect as to (A) any Products or repackaged Product Die with respect to which DIALOG or any of its Affiliates has secured a design win at a customer prior to or within one (1) month after the start of the Wind Down Period, or (B) the sale of any MCMs which have been released for production at a foundry, provided, however, that DIALOG's license rights under Section 2.1 (including any sublicenses granted by DIALOG pursuant to Section 2.4) will be non-exclusive during the Wind Down Period. (b) If, at the time of notice of any termination of this Agreement, DIALOG or any of its Affiliates has a written supply contract with a customer that extends beyond the end of the Wind Down Period (a "Continuing Obligation"), DIALOG and/or its Affiliates may continue to Sell Licensed Products to such customer through the term of the Wind Down Period and for the remainder of the term of such Continuing Obligation, provided that in no event may DIALOG or its Affiliates Sell Licensed Products to such customer pursuant to this Section 15.4(b) for a period longer than [***] after the effective date of termination of this Agreement. In such event, the provisions of this Agreement that survive during the Wind Down Period will continue to survive for the remainder of the period of time that DIALOG is authorized to Sell Licensed Products to any customer in accordance with the foregoing sentence. The rights granted under this Section 15.4(b) will be conditioned upon DIALOG providing ENERGOUS a complete or redacted copy of the applicable supply contract demonstrating the existence of the Continuing Obligation as of the date of notice of termination or, if DIALOG or its Affiliate is prohibited from providing a copy of the contract by the confidentiality obligations set forth therein, a written certification from an officer of DIALOG attesting to the existence of the Continuing Obligation. * Confidential Treatment Requested Page 20 16. ESCROW. 16.1 Escrow. ENERGOUS will at its expense, at DIALOG's written request during the Term and any Wind Down Period, enter into a three- party escrow deposit arrangement, in accordance with this Section 16, with a recognized escrow agent (the "Escrow Agent") of mutual agreement. ENERGOUS will keep the Deposit Materials in escrow and ensure on a quarterly basis that all the information relating to the Deposit Materials in escrow is current, including deposit of any Product Updates. 16.2 Release of Deposit Materials. In the event of any Insolvency Event and where the design files need to be accessed by DIALOG to fix an Epidemic Defect or other Product design or production issue impacting yield or quality ("Release Condition"), the Escrow Agent will, in accordance with the terms of the escrow agreement between the parties and the Escrow Agent (the "Escrow Agreement"), release the Deposit Materials to DIALOG. 16.3 License. ENERGOUS hereby grants DIALOG a non-exclusive, non-transferable (except as set forth in Section 2) license under the Product IP to use any of the Deposit Materials released from escrow for the purpose of fixing an Epidemic Defect or other Product design or production issue impacting yield or quality during the Term and, if applicable, any Wind Down Period or Continuing Obligation period, including, but not limited to, authorizing any third party subcontractor to manufacture and supply Products, provided, however, that DIALOG continues to make all Royalty payment owed to ENERGOUS (or the then-current owner of the Product IP) as provided in this Agreement. No Service Fees will be payable under this license. DIALOG agrees not to exercise such license until occurrence of a Release Condition, subject to the other restrictions set forth in this Section 16. Such license may be exercised by DIALOG only during the Term and any Wind
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Extract the exact clause related to "Source Code Escrow" from the excerpt above.

assistant: In the event of any Insolvency Event and where the design files need to be accessed by DIALOG to fix an Epidemic Defect or other Product design or production issue impacting yield or quality ("Release Condition"), the Escrow Agent will, in accordance with the terms of the escrow agreement between the parties and the Escrow Agent (the "Escrow Agreement"), release the Deposit Materials to DIALOG.