Description of Business	12 Months Ended
Jun. 27, 2026
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business	Description of Business We design and deliver AI-native edge solutions that bring AI closer to end users and transform how we engage with intelligent, connected devices, whether at home, at work, or on the move. We are a strategic partner for many global original equipment manufacturers (“OEMs”), offering standard and custom silicon and software platforms for Edge AI, Physical AI, wireless connectivity and human interface technologies. Pending Merger with ON Semiconductor Corporation On June 25, 2026, we entered into an Agreement and Plan of Reorganization (the “Merger Agreement”), by and among Synaptics, ON Semiconductor Corporation, a Delaware corporation (“Parent” or “onsemi”), and Sonic Acquisition Corp., a Delaware corporation and wholly-owned subsidiary of Parent (“Merger Sub”), pursuant to which Merger Sub will merge with and into Synaptics (the “Merger”), with Synaptics surviving as a wholly-owned subsidiary of Parent (the “Surviving Corporation”). Subject to the terms and conditions set forth in the Merger Agreement, including the approval of a proposal to approve the Merger and the Merger Agreement at a special meeting of Synaptics stockholders, at the effective time of the Merger (the “Effective Time”), by virtue of the Merger, each share of Synaptics common stock outstanding immediately prior to the Effective Time, subject to limited exceptions in the Merger Agreement, shall be converted into the right to receive 1.350 validly issued, fully paid and non-assessable shares of onsemi common stock, par value $0.01 per share (“onsemi common stock”) (such number of shares of onsemi common stock per share of Synaptics common stock, the “Exchange Ratio”, and such consideration, the “Merger Consideration”). No fractional shares of onsemi common stock will be issued in connection with the Merger. Instead, any Synaptics stockholder who would otherwise be entitled to receive a fractional share of onsemi common stock will instead receive a cash payment (without interest) equal to such fraction multiplied by the “Average Parent Stock Price,” which is defined in the Merger Agreement as the average of the volume-weighted average trading prices per share of onsemi common stock on the Nasdaq Global Select Market on each of the five consecutive trading days ending on (and including) the trading day that is three trading days prior to the closing date (as reported by Bloomberg L.P. or another authoritative source mutually selected by the parties). The transaction is expected to close in mid-2027, subject to customary closing conditions, including approval by Synaptics stockholders and the receipt of required regulatory approvals.

Description of Business

12 Months Ended

Jun. 27, 2026

Organization, Consolidation and Presentation of Financial Statements [Abstract]

We design and deliver AI-native edge solutions that bring AI closer to end users and transform how we engage with intelligent, connected devices, whether at home, at work, or on the move. We are a strategic partner for many global original equipment manufacturers (“OEMs”), offering standard and custom silicon and software platforms for Edge AI, Physical AI, wireless connectivity and human interface technologies.

Pending Merger with ON Semiconductor Corporation

On June 25, 2026, we entered into an Agreement and Plan of Reorganization (the “Merger Agreement”), by and among Synaptics, ON Semiconductor Corporation, a Delaware corporation (“Parent” or “onsemi”), and Sonic Acquisition Corp., a Delaware corporation and wholly-owned subsidiary of Parent (“Merger Sub”), pursuant to which Merger Sub will merge with and into Synaptics (the “Merger”), with Synaptics surviving as a wholly-owned subsidiary of Parent (the “Surviving Corporation”). Subject to the terms and conditions set forth in the Merger Agreement, including the approval of a proposal to approve the Merger and the Merger Agreement at a special meeting of Synaptics stockholders, at the effective time of the Merger (the “Effective Time”), by virtue of the Merger, each share of Synaptics common stock outstanding immediately prior to the Effective Time, subject to limited exceptions in the Merger Agreement, shall be converted into the right to receive 1.350 validly issued, fully paid and non-assessable shares of onsemi common stock, par value $0.01 per share (“onsemi common stock”) (such number of shares of onsemi common stock per share of Synaptics common stock, the “Exchange Ratio”, and such consideration, the “Merger Consideration”). No fractional shares of onsemi common stock will be issued in connection with the Merger. Instead, any Synaptics stockholder who would otherwise be entitled to receive a fractional share of onsemi common stock will instead receive a cash payment (without interest) equal to such fraction multiplied by the “Average Parent Stock Price,” which is defined in the Merger Agreement as the average of the volume-weighted average trading prices per share of onsemi common stock on the Nasdaq Global Select Market on each of the five consecutive trading days ending on (and including) the trading day that is three trading days prior to the closing date (as reported by Bloomberg L.P. or another authoritative source mutually selected by the parties). The transaction is expected to close in mid-2027, subject to customary closing conditions, including approval by Synaptics stockholders and the receipt of required regulatory approvals.