Contract analysis

I. EXECUTIVE SUMMARY This memorandum analyzes whether the appropriate royalty base for calculating reasonable-royalty damages under Theory 2 of our damages framework (applying the Georgia-Pacific fifteen-factor analysis) should be the price of the entire accused transceiver module — invoking the Entire Market Value Rule ("EMVR") — or a disaggregated sub-component thereof, under the Smallest Salable Patent-Practicing

II. BACKGROUND A. The Parties and Accused Products

1. Optiwave Semiconductor Corp. Optiwave Semiconductor Corp. ("OWS" or "Optiwave") is a Delaware corporation headquartered at 4810 Bayside Technology Parkway, Suite 300, Santa Clara, California 95054. OWS is a fabless semiconductor company specializing in silicon photonics chipsets for data-center interconnects. According to audited financial statements prepared by Gresham & Whitfield LLP, OWS reported Fiscal Year 20

2. Lumicore Technologies, Inc. Lumicore Technologies, Inc. ("Lumicore" or "LTC") is a Delaware corporation headquartered at 9200 Spectrum Boulevard, Building C, Austin, Texas 78759. Lumicore completed its initial public offering on the Nasdaq exchange in March 2022 at an offering price of $24.00 per share. As of the filing date of this action, Lumicore's common stock was trading at approximately $37.00 per share, imp

3. Accused Product Lines The Complaint asserts infringement against three Lumicore product families, each of which is an integrated optical transceiver module sold to hyperscale data-center operators and telecommunications equipment manufacturers. The accused products, their launch dates, Fiscal Year 2023 revenues, and asserted patents are summarized below: Total accused-product revenue over the infringement period f

1. U.S. Patent No. 10,234,847 (the "'847 Patent") The '847 Patent is titled "Multi-Channel Silicon Photonic Waveguide Multiplexer with Low Insertion Loss." It was filed on September 14, 2016, and issued on March 19, 2019. The original and current assignee is Optiwave Semiconductor Corp. The Complaint asserts infringement of Claims 1, 3, 5, 9, and 14 of the '847 Patent. The '847 Patent claims a multi-channel waveguide

2. U.S. Patent No. 10,891,193 (the "'193 Patent") The '193 Patent is titled "High-Bandwidth Coherent Optical Transceiver Integrated on Silicon Substrate." It was filed on April 7, 2017, and issued on January 12, 2021. The '193 Patent shares Provisional Application No. 62/499,117 with the '015 Patent, establishing a common priority date for the two inventions. The Complaint asserts infringement of Claims 1, 3, 7, 10,

3. U.S. Patent No. 9,678,562 (the "'562 Patent") The '562 Patent is titled "Method for Thermal Management of Photonic Integrated Circuits Using Embedded Micro-Channel Heat Sinks." It was filed on November 22, 2014, and issued on June 13, 2017. The '562 Patent was originally assigned to Solara Optics, Inc. and was acquired by OWS pursuant to an asset purchase agreement dated June 15, 2018. The total purchase price for

4. U.S. Patent No. 11,402,015 (the "'015 Patent") The '015 Patent is titled "Polarization-Diverse Grating Coupler for Silicon Photonic Transceivers." It was filed on August 30, 2019, and issued on August 2, 2022. As noted above, the '015 Patent shares Provisional Application No. 62/499,117 with the '193 Patent. The Complaint asserts infringement of Claims 1, 5, 8, 12, and 16 of the '015 Patent. The '015 Patent claims

5. Technical Summary The four asserted patents collectively cover the core functional elements of a silicon-photonics transceiver module: (1) the waveguide multiplexer that combines multiple optical channels with low insertion loss ('847 Patent); (2) the coherent transceiver architecture integrated on a silicon substrate that enables high-bandwidth data transmission ('193 Patent); (3) the embedded thermal management

III. LEGAL FRAMEWORK A. The Default Rule: The Smallest Salable Patent-Practicing Unit (SSPPU) The Federal Circuit has established a strong preference for tying patent-damages calculations to the smallest salable unit that embodies the patented invention, rather than to an entire multi-component product. This preference, articulated most forcefully in LaserDynamics, Inc. v. Quanta Computer, Inc., 694 F.3d 51 (Fed. Cir

IV. APPLICATION TO THE ACCUSED LUMICORE TRANSCEIVER MODULES A. The SSPPU Is the Transceiver Module Itself

1. Structural Overview of the Accused Products Each accused transceiver module — the LumiLink 400G-ZR+, the LumiLink 800G-DR8, and the LumiEdge 1600G-LR — is an integrated optical transceiver module designed for high-bandwidth data-center interconnect applications. Each module is a self-contained unit that converts electrical data signals to optical signals (and vice versa) for transmission over fiber-optic links. Th

2. The PIC Die Is Not Separately Sold The PIC die is not sold separately by Lumicore. Based on the evidence produced in discovery to date, Lumicore fabricates its PIC dies at a foundry partner facility and ships the fabricated dies directly to Lumicore's Austin assembly facility, where they are assembled into the accused transceiver modules. At no point in this supply chain is the PIC die offered for sale as a standa

3. The Patented Sub-Components Are Not Separable The individual patented structures within the PIC die — the waveguide multiplexer, the coherent transceiver elements, the micro-channel heat sinks, and the grating couplers — occupy an even lower level of the product architecture. These structures are not discrete components that can be removed from the PIC die and sold or valued independently. They are patterned into

4. Supporting Evidence The conclusion that the transceiver module is the SSPPU is supported by multiple categories of evidence: Benchmark Semiconductor Analysis, LLC Teardown Reports. Benchmark Semiconductor Analysis, LLC conducted independent teardown analyses of each of the three accused products. The teardown reports — dated December 12, 2022 (LumiLink 400G-ZR+), June 2023 (LumiLink 800G-DR8), and February 2024 (L

1. Waveguide Multiplexer ('847 Patent) The multi-channel silicon photonic waveguide multiplexer enables the accused modules to combine multiple optical channels onto a single waveguide with low insertion loss. This is the fundamental capability that allows the modules to achieve their specified data rates of 400 Gbps, 800 Gbps, and 1600 Gbps, respectively. Without the waveguide multiplexer, the module simply cannot p

2. Coherent Transceiver Architecture ('193 Patent) The high-bandwidth coherent optical transceiver architecture integrated on a silicon substrate enables detection of both the amplitude and phase of optical signals, dramatically increasing data capacity per wavelength compared to legacy intensity-modulation / direct-detection ("IM/DD") transceivers. Coherent detection is not merely a performance enhancement — it is t

3. Thermal Management ('562 Patent) The embedded micro-channel heat sink system enables reliable high-power operation of the PIC die without thermal-induced performance degradation. This is a critical requirement for deployment in data-center environments, where transceiver modules operate continuously in thermally constrained rack-mount enclosures with limited airflow. Inadequate thermal management leads to waveleng

4. Polarization-Diverse Grating Coupler ('015 Patent) The polarization-diverse grating coupler enables efficient coupling of light of both orthogonal polarization states into and out of the PIC die. This is essential for achieving the specified optical performance because the polarization state of light in a fiber-optic link is inherently random and time-varying. A grating coupler that is polarization-sensitive — i.e

5. Collective Impact The four patented technologies, taken together, constitute the technological foundation of the accused transceiver modules. They are not independent, severable features that each contributes a discrete increment of value to an otherwise complete product. Rather, they are synergistically integrated elements of a unified photonic architecture: the waveguide multiplexer combines the optical channels

V. QUANTITATIVE ANALYSIS A. Royalty Base Calculation Using Module-Level Revenue The following table summarizes the accused-product revenue data by product line, based on Lumicore's financial data produced in discovery and Dr. Keating's preliminary revenue projections: The non-lost-profit sales base for the reasonable-royalty calculation is derived by subtracting the portion of revenue subject to the lost-profits clai

VI. IMPLICATIONS FOR LOST-PROFITS ANALYSIS Although the apportionment and EMVR analysis set forth in this memorandum is primarily directed at the reasonable-royalty calculation under Theory 2, it also supports and reinforces the lost-profits analysis under Theory 1. The lost-profits analysis uses the full module revenue as the measure of lost sales. OWS's competing products — the OWS-400ZR and OWS-800XR transceiver m

VII. ANTICIPATED DAUBERT CHALLENGES AND PREPARATION A. Expected Timing and Scope of Lumicore's Challenge Lumicore is expected to file a Daubert motion challenging Dr. Keating's expert damages testimony.