Sanjay Mehrotra
President and Chief Executive Officer at Micron Technology
Thank you, Farhan. Good afternoon, everyone. Micron delivered fiscal second quarter revenue within our guidance range and excluding the impact of inventory write-downs, margins and EPS were also within the guidance range. The semiconductor memory and storage industry is facing its worst downturn in the last 13 years with an exceptionally weak pricing environment that is significantly impacting our financial performance. We have taken substantial supply reduction and austerity measures, including executing a company-wide reduction in force.
We now believe that customer inventories have reduced in several end markets and we see gradually improving supply demand balance in the months ahead. Excluding the impact of inventory write-downs, we believe our balance sheet DIO has peaked in fiscal Q2 and we are close to a transition to sequential revenue growth in our quarterly results. We are navigating the near-term difficult environment with our strong technology position, deep manufacturing expertise, strengthening product portfolio, solid balance sheet and incredibly talented team. Beyond this downturn, we anticipate a return to normalized growth and profitability in line with our long-term financial model.
Micron continues to lead the industry in both DRAM and NAND technology. We are investing prudently to maintain our technology competitiveness while managing node ramps to reduce our bit supply and alignment with demand. In DRAM, 1-alpha represents most of our DRAM bit production and we continue to make great progress in initiating our transition to 1-beta. In NAND, 176 layer and 232 layer now represent more than 90% of NAND bit production. We also continue to lead the industry in QLC. QLC accounted for over 20% of our NAND bit production and shipments in fiscal Q2.
The Micron team's solid execution and implementation of smart manufacturing has driven superb yield enhancement across our leading edge nodes. Yields on 1-alpha DRAM and 176 layer NAND have reached levels that are now higher than any node in our history. In addition, both our 1-beta DRAM and 232 layer NAND have reached targeted yields ahead of schedule and faster than any of our prior nodes. We are well positioned to qualify these leading edge nodes across our product portfolio and we'll ramp them based on customer demand. We are also making good progress towards the introduction of our EUV based 1-gamma node in 2025. Similar to our 1-alpha and 1-beta nodes, we expect this node to provide us with competitive performance, power, cost and density improvements.
Now turning to our end markets. As a result of inventory adjustments across our end markets, slowing demand growth and an extremely challenging pricing environment, revenue was down year-over-year in all end markets. While our industry faces significant near-term challenges, we believe that the memory and storage TAM will grow to a new record in calendar 2025 and will continue to outpace the growth of the semiconductor industry thereafter. Recent developments in AI provides an exciting prelude to the transformational capabilities of large language models or LLMs such as ChatGPT, which requires significant amounts of memory and storage to operate.
We are only in the very early stages of the widespread deployment of these AI technologies and potential exponential growth in their commercial use cases. As more applications of this technology proliferate, we will see training workloads in the datacenters supplemented with widespread incidents capabilities in the data center as well as in end user devices, all of which will drive significant growth in memory and storage consumption. In data center, we believe that our revenue bottomed in fiscal Q2 and we expect to see revenue growth in fiscal Q2. Data center customer inventories should reach relatively healthy levels by the end of calendar 2023.
We continue to see AI as a secular driver of demand growth in the datacenter. An AI server today can have as much as 8 times the DRAM content of a regular server and up to 3 times the NAND content. We are well positioned to capture the memory and storage opportunities that AI and data-centric computing architectures will provide. Our product roadmap includes exciting HVM3 and CXL innovations and I look forward to sharing more details about these solutions in the future.
In fiscal Q2, we expanded shipments of CXL DRAM samples to OEM customers that service enterprise, cloud and HPC workloads. Micron is leading the industry with world-class DDR5 or D5 technology. We are shipping D5 in high-volume to data center customers and achieved our first customer qualification for our 1-alpha 24 gigabit D5 product. The latest generation of server processors, AMD Genoa and Intel's Sapphire Rapids require D5 DRAM. Servers using these new processors will drive higher D5 industry bit demand in second half of calendar 2023 towards mix crossover with D4 in mid calendar 2024. In fiscal Q2, we also began volume production and shipments of the fastest PCIe Gen 4 x 4 NVMe SSD in the market, our 9,400 176 layer performance NVMe data center SSD, which excels in AI and high-performance computing workloads.
In PCs, we now forecast calendar 2023 PC unit volume to decline by mid-single-digit percentage returning PC unit volume to pre-COVID levels last seen in 2019. Although still elevated, client customer inventories have improved meaningfully and we expect increased bit demand in the second half of the fiscal year. With our strong product line up, we are well positioned for the ongoing industry transition to D5. Clients' D5 adoption is expected to gradually increase through calendar 2023 with D4 to D5 mix crossover in early to mid calendar 2024.
In fiscal Q2, our NAND QLC bit shipment mix reached a new record for the second consecutive quarter, driven by growth in both client and consumer SSDs. We qualified our Micron 2400 SSD, the world's only 176 layer QLC SSD qualified at OEMs across the client customer base. In graphics, industry analysts continue to expect graphics TAM growth CAGR to outpace the broader market supported by applications across client and datacenter. Customers' inventory adjustments are progressing well and we expect demand in the calendar second half of 2023 to be stronger than the first half. As the performance leader in graphics, we are excited to see our proprietary 16 gigabit G6X featured in the recently launched NVIDIA RTX 4070 TI.
In mobile, we now expect calendar 2023 smartphone unit volume to be down slightly year-over-year. While some customer inventories are back to normal levels, other OEMs inventories remain elevated. In aggregate, we expect mobile customer inventory to improve through the remainder of calendar 2023 and we expect growth in mobile DRAM and NAND bit shipments in the second half of our fiscal year versus the first half. In fiscal Q2, we continued sampling and qualifying our industry-leading 1-beta 16 gigabit LP 5X receiving very positive feedback on its power, performance and quality from customers. We expect to generate revenue on this 1-beta product later this fiscal year. We showcased our leading products earlier this month at Mobile World Congress where we displayed eight flagship mobile customer design wins.
Last, I'll cover the auto and industrial end markets, which now represent over 20% of our revenue and contribute more stable revenue and profitability. Micron is a market share leader in this important and fast-growing market. In fiscal Q2, auto revenue grew approximately 5% year-over-year. Our leadership in automotive was evidenced by several milestones in Q2. We reached a new record customer quality score, quantified the industry's first 176 layer eMMC 5.1 automotive product and began shipping the industry's first 176 layer UFS 3.1 automotive solution. We expect continued growth in auto memory demand for the second half of calendar 2023, driven by gradually easing non-memory supply constraints and increasing memory content per vehicle.
The industrial market continued to soften in Q2 as our distribution channel partners reduced their inventory levels and end demand weakened for some customers. Inventories are starting to stabilize at the majority of our customers and we expect demand to improve in the second half of our fiscal year. In our fiscal second quarter, Micron achieved advanced started sampling and designing across automation OEMs, ODMs and integrators with our latest generation of products.
Now turning to our market outlook. Our expectations for calendar 2023 industry bit demand growth have moderated to approximately 5% in DRAM and low-teens presentation range in NAND, which are well below the expected long-term CAGAR of mid-teens percentage range in DRAM and low 20s percentage range in NAND. The reduction in calendar 2023 demand from our prior forecast is driven by an assessment of customer inventories as well as some degradation in end market demand. We expect that improving customer inventories will support sequential bit demand growth for DRAM and NAND through the calendar year.
China's reopening is also a positive factor for calendar 2023 bit demand. Published reports indicate that there have been significant capex cuts throughout the industry and utilization rates have declined at all DRAM and NAND suppliers. We now expect that the industry bit supply growth for DRAM and NAND in calendar 2023 will be below demand growth, which will help improve supplier inventories. While the supply demand balance is expected to gradually improve due to the high levels of inventories, industry profitability and free cash flow are likely to remain extremely challenged in the near-term. Market recovery can accelerate if there is a year-to-year reduction in production or in other words negative DRAM and NAND industry bit supply growth in 2023.
In response to the industry environment, Micron has taken a number of decisive actions in fiscal 2023. First, we are further reducing our supply. We have made additional reductions to our fiscal 2023 capex plan and now expect to invest approximately $7 billion, down more than 4% [Phonetic] from last year with WFE down more than 50%. In fiscal 2024, we expect WFE to fall further as we ramp 1-beta and 232 layer nodes in a capital efficient manner. We have further reduced DRAM and NAND wafer starts, which are now down by approximately 25%. As a result for calendar 2023, we now expect Micron's year-on-year bit supply growth to be meaningfully negative for DRAM.
We also expect to produce fewer NAND bits in calendar 2023 than in calendar 2022. Excluding the impact of inventory write-downs, we expect Micron's DIO to decline sequentially going forward from its peak in the second quarter. Second, we have made further reductions to our operating expenses beyond the executive salary cuts and suspension of Micron's fiscal 2023 bonuses company wide. We now expect our overall headcount reduction to approach 15%. This will occur through a combination of workforce reductions, which are now largely complete, as well as anticipated attrition through the remainder of the year. Third, Micron continues to execute to our strategy of maintaining flat annual bit share in both DRAM and NAND.
While we have had to reduce price to remain competitive in the market, we have not done so in an attempt to gain share as such share changes at customers are generally transitory. Lastly, we have taken additional steps to ensure ample liquidity. Mark will go into further detail. Micron continues to have the strongest balance sheet among the pure play memory and storage companies, and our strong liquidity will enable us to weather this downturn while ensuring our product and technology competitiveness.
I will now turn it over to Mark.