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DRAM Manufacturing Specialist

Fractile· Manufacturing Operations
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Hybrid (Taiwan)Posted 1w ago

About the role

Based in Taiwan, Fractile’s manufacturing technology interface with DRAM suppliers and their manufacturing team. Responsible for taking DRAM devices from development through qualification and volume production, with hands-on expertise in DDR5 DRAM down to gate and transistor level, and for defining test strategies to detect manufacturing defects and verify device performance.

Responsibilities

  • Own the technical manufacturing relationship with Fractile’s DRAM suppliers, ensuring clear requirements, credible qualification plans and readiness for production.
  • Work with Fractile’s design teams and DRAM partners to translate device requirements into manufacturing specifications, test coverage and acceptance criteria.
  • Review DRAM architecture and circuit implementation, including memory cells, access transistors, capacitors, wordlines, bitlines, sense amplifiers, decoders, peripheral logic and redundancy circuits.
  • Apply detailed knowledge of activation, sensing, restoration, precharge, refresh and read/write operations to assess device behaviour and investigate failures.
  • Define and review test strategies covering wafer probe, packaged-device testing, characterisation, qualification and production screening.
  • Coordinate with Manufacturing Test Team to ensure test programmes cover functional, parametric, timing, retention, coupling and disturb-related failures across appropriate voltage, temperature and frequency conditions.
  • Assess the effects of redundancy, repair and on-die ECC on test coverage, ensuring underlying defects are adequately detected and understood.
  • Analyse wafer maps, bit-failure maps, yield trends and characterisation data to identify root causes and drive corrective actions with suppliers.
  • Establish correlation between supplier test results and Fractile’s device and system evaluation, resolving gaps in coverage or inconsistent results.
  • Drive improvements in yield, outgoing quality and test efficiency as products move into volume production.
  • Assess and manage supplier process, material and test-programme changes, including their qualification requirements and impact on Fractile’s products.
  • Give internal teams clear visibility of technical risks, qualification progress and manufacturing readiness.

Qualifications

  • Substantial experience in DRAM manufacturing, product engineering, test engineering or device characterisation.
  • Hands-on experience with DDR5 DRAM development, qualification or production testing.
  • Deep understanding of DRAM structure and operation at gate and transistor level, including memory-cell behaviour and analogue sensing circuits.
  • Practical experience selecting and implementing DRAM test strategies.
  • Understanding of how process variation and manufacturing defects affect DRAM performance, power, retention, reliability and yield.
  • Ability to interpret circuit schematics, device specifications, timing diagrams and failure signatures.
  • Experience working directly in or with DRAM suppliers and driving technical issues to resolution.
  • Ability to work independently, prioritise competing issues and make sound engineering decisions in a growing company.
  • Strong communication skills in English.
  • Degree in electrical engineering, electronics, semiconductor physics or a related discipline, or equivalent industry experience.

Skills

Required:DRAM manufacturing and production testingDDR5 DRAM development and qualificationDRAM architecture and circuit understanding (gate and transistor level)Test strategy design and implementationFailure analysis and root cause investigationSupplier engagement and issue resolutionEnglish communication

Benefits

  • Competitive salary: A competitive salary reflective of your experience and the specialist nature of the role.
  • Equity & Ownership: meaningful equity so everyone shares in the value creation
  • Diverse & fun office: commitment to Equal Employment Opportunity and inclusive environment.
Last updated Oct 15, 2026. Interested? Apply on the company site.
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About Fractile

Radically Accelerate Frontier Model Inference

Fractile is designing AI compute systems that will enable the next generation of AI scaling: frontier model inference, 25x faster, at 1/10th the cost.

frontier model inferenceAI computecompute systemsAI scalinginference hardwareprocessor innovation
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