Nexperia Arrangement	3 Months Ended
Nexperia Arrangement	Jun. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nexperia Arrangement	Nexperia Arrangement On April 4, 2018, the Company entered into a multi-element commercial arrangement with Nexperia B.V. (“Nexperia”), including a development and license agreement, loan and security agreement and supply agreement, to obtain financing in exchange for the sale of equity instruments and performing certain technology and product development activities for Nexperia (collectively, the “Collaboration Arrangement”). Nexperia specializes in designing, manufacturing and selling a broad range of small discrete semiconductor devices that utilize components such as those manufactured by the Company. By entering into this Collaboration Arrangement, Nexperia gained access to technology that allows for the production of high power semiconductors for use in electric vehicles. Financing under the Collaboration Arrangement was comprised of the following elements: •$16 million of equity financing; •$9 million license fee for transfer of the Gen-3 manufacturing process; •$15.0 million of term loans, separated into tranches for pre-funded projects; and •$10 million revolving loan, secured against certain of the Company’s U.S. patents not relating to MOCVD or epiwafer technology. Loan and Security Agreement The LSA, entered into on April 4, 2018, originally comprised term loans in an aggregate principal amount of $15.0 million, separated into tranches for pre-funded projects, and a $10.0 million revolving loan, each of which bore 6% annual interest. In June 2020, $5.0 million of term loans was was satisfied in full upon our transfer of our Gen-4 technology development to Nexperia, at which point we recognized $5.0 million as licensing revenue. On May 18, 2021, Amendment No. 6 to the LSA was executed to (1) extend the maturity date for the revolving loan to the earlier of April 4, 2023 and the occurrence of specified change of control events, (2) add Parent as a guarantor of Transphorm Technology’s obligations under the LSA, and (3) convert $2 million of term loans into a revolving loan with the same terms and conditions as the existing revolving loan. See Note 7 - Debts. On June 30, 2021, Amendment No. 7 to the LSA was executed to extend the maturity of the then-outstanding $8 million term loan to July 16, 2021. On July 16, 2021, Nexperia agreed that the $8 million term loan was satisfied in full in connection with the Company transferring its Gen-5 and 900V technology developments to Nexperia, at which point the Company recognized $8 million as perpetual licensing revenue. Amended and Restated Development and License Agreement The amended and restated development and license agreement (the “DLA”), entered into on May 18, 2021 provides that the Company will develop and transfer to Nexperia certain manufacturing process technologies to enable Nexperia to manufacture GaN-based products at Nexperia’s facilities. These technologies to be transferred included the Company’s Gen-3, Gen-4 (Tranche A), and Gen-5 and 900V (Tranche B) process technologies, but do not include the Company’s Epi Process Technology (as defined in the DLA). Nexperia also agreed to provide funding for the development of such technologies in return for limited exclusivities in automotive and other fields. Nexperia’s rights now include sale of products in the automotive field in Japan along with Transphorm’s rights for sale of products in the automotive field in Japan which remain in place. As per the original agreement, after April 2023, Nexperia’s exclusive rights for sale of products in the automotive field outside of Japan terminate. In addition, the parties have clarified the ability of Nexperia’s customers to use products developed by Nexperia through exercise of its rights under this agreement. Amended and Restated Supply Agreement The amended and restated supply agreement (the “Supply Agreement”), entered into on May 18, 2021, sets forth the terms under which Nexperia may purchase epiwafers and processed wafers from the Company, and the Company may purchase processed wafers from Nexperia. The agreement specifies that Nexperia is the Company’s priority customer with respect to epiwafers manufactured by TJE and, accordingly, has preferred utilization of extra capacity, and further specifies procedures to address expansion of the Company’s epiwafer manufacturing capacity and Nexperia’s obligations with respect thereto. The term of the Supply Agreement was extended until December 31, 2025, with automatic one year renewals thereafter, and the Company may not terminate the Supply Agreement while the option agreement (described below) is in effect. Strategic Cooperation Agreement The strategic cooperation agreement, entered into on May 18, 2021, serves as a framework agreement that describes the numerous agreements between the parties and provides Nexperia with information rights and inspection rights with respect to the Company’s business. Option Agreement The option agreement, entered into on May 18, 2021, establishes the parameters pursuant to which Nexperia, in certain limited instances, is permitted to exercise an option (the “Option”) to acquire Transphorm Japan Epi, Inc. (“TJE”), a Japanese subsidiary of the Company through which the Company is engaged in the development, manufacturing and sales of gallium nitride (“GaN”) based epitaxial wafer products. In general, the Option is exercisable upon (1) certain acquisitions of securities or assets of the Company or its subsidiaries by a Competitor (as defined in the option agreement) that results in the Company, directly or indirectly, owning less than a majority of TJE, which acquisition is followed by any material breach (that is not cured within a specified time period) by the Company or a subsidiary of its obligations with respect to epiwafer supply to Nexperia under the Supply Agreement, or (2) the unilateral termination by the Company of the Supply Agreement. The option agreement also establishes the material terms, including price and timing, for the exercise of the Option by Nexperia. The Option terminates (1) if the Option is not exercised by Nexperia prior to the date on which the option agreement terminates, or (2) on the first to occur of (a) the termination of the option agreement upon written agreement of the parties, (b) the mutual termination or expiration of the Supply Agreement, or (c) the first to occur of (i) two years following the date on which the Company notifies Nexperia of epiwafer qualification of a second source and (ii) April 1, 2028. In connection with the option agreement, the Company has also amended and restated its existing intracompany license agreement with TJE to clarify Nexperia’s rights upon exercise of the Option.