Win Semiconductors (3105) announced that photodetectors (PD) will reach full-scale production capacity in 2027, with optical communications accounting for 10% to 15% of consolidated revenue in Q3 2026. The company stated PD entered mass production at the end of Q2, with quarterly shipment increases continuing through Q4. CW laser and EML products require an additional year of reliability testing, with mass revenue contribution scheduled for 2028 rather than 2027. The staged rollout reflects the extended validation cycles required for optical transceiver components in data center infrastructure.
Win Semi PD Production Reaches Quarterly Growth in Q4 2026
Win Semi stated that PD shipments will increase sequentially each quarter, with Q4 2026 showing "good growth" compared to Q3. The company confirmed that the majority of PD production capacity will be deployed in 2027. PD functions as the optical detector used in receiver modules. The company noted that 3D sensing's revenue share has been declining as PD production ramps up, with PD becoming the primary growth driver on the optical communications line.
CW Laser and EML Complete Reliability Testing by 2028
Both CW laser and EML products remain in customer reliability testing phases. Win Semi stated that each validation cycle requires six months, and CW laser "should still need about one more year," placing mass revenue contribution in 2028. The company expects only small pre-production revenue in 2027. EML follows a similar timeline to CW laser, with customer product development completed but pending reliability verification.
Win Semi 4-Inch InP Line Switches Between PD and LD Products
Substrate supply does not present a bottleneck. Win Semi operates as a foundry, with customers providing pre-grown epitaxial wafers for production. Customers ensure their own InP substrate supply, and the company has not observed any revenue-impacting shortages. The 4-inch InP production line switches between PD and laser diode (LD) manufacturing, with no single product occupying full capacity. Institutional analysts project Win Semi's 2027 consolidated revenue between 23.9 billion TWD and 29.9 billion TWD, compared to approximately 21.7 billion TWD in 2026, representing growth of 10% to nearly 40%. Quarterly forecasts show Q1 2027 revenue at 5.722 billion TWD and Q3 2027 at 6.799 billion TWD, with the second half maintaining a plateau around 6.7 billion TWD.
FAQ
What is Win Semiconductors' production timeline for PD and laser products?
Win Semi stated that PD will reach full-scale production capacity in 2027, with mass production beginning at the end of Q2 2026. CW laser and EML products require an additional year of reliability testing, with mass revenue contribution scheduled for 2028.
How does Win Semi manage production capacity for different optical products?
The company operates a 4-inch InP production line that switches between PD and laser diode (LD) manufacturing. Win Semi confirmed no single product occupies full capacity, and substrate supply is ensured by customers who provide pre-grown epitaxial wafers for foundry production.
