Materials & Mechanical Engineer

Mohamed Cherif

I am a materials engineer focused on bridging hardware design and advanced manufacturing. I use CAD, multiphysics simulations, and optical engineering to design and optimize products for various applications.

Capabilities

Core areas spanning materials & mechanical design, optical designs, process development, and materials characterization.

CAD & and Drawings

Modeling devices, tooling, and fixturing with prescision to meet set specifications.

  • Utilized SolidWorks for the 3D modeling of complex mechanical components and assemblies
  • Drafted detailed drawings with precise Geometric Dimensioning and Tolerancing (GD&T) callouts to ensure strict adherence to manufacturing specs
  • Designing specialized hardware, including thermally stable CNC-ready enclosures and air-free transport containers, for sensitive environments
  • Applying Design for Manufacturing (DFM) principles and reverse-engineering techniques to optimize component cost and mechanical performance

Simulation Expertise

Developed simulations for devices, CVD, and mechanical components.

  • Utilize finite element analysis (FEA) to validate mechanical integrity and prevent failure based on applicable conditions
  • Simulated chemical vapor deposition (CVD) using COMSOL Multiphysics (Plasma, Heat Transfer, and Chemical Species Transport modules)
  • Utilize computational fluid dynamics (CFD) simulations to optimize fluid flow, mass transport, and thermal dissipation
  • Conducted high-frequency electromagnetic and thermal failure analysis using ANSYS HFSS

Metrology & Materials Characterization

Analyzing structural composition, impurity retention, and device performance for various applications.

  • SIMS and Raman spectroscopy for the analysis of doping uniformity
  • SEM, TEM, EDS, XPS, XRF analysis for structural & chemical charecterization
  • UV-Vis and ellipsometry for measuring film thickness, absorbance, and optical constants
  • DSC and tensile/compressive testing to evaluate thermal stability and mechanical integrity

Focus Areas

Selected threads of work — control systems, methodology, simulation, and analysis.

Control System

TDL Dual-Chuck Motion Control

ACSPL+ programming for a dual-chuck laser and machining platform — coordinate capture from confocal touch routines, quadratic depth-targeting correction, and automated layer-target generation.

Methodology

Stress-Based Diamond Splitting

A separation approach built around controlled lateral crack-tip coalescence along {100} planes, in contrast to uncontrolled {111} cleavage — benchmarked conceptually against Infineon's Cold Split process for SiC, with comparative diagrams covering ultrasonic, UV-ozone, and molten-salt routes.

Structural Simulation

Graphite–Diamond Eigenfrequency Study

COMSOL eigenfrequency modeling of a diamond–graphite–diamond sandwich (250 / 75 / 250 µm) to test whether graphite resonance can generate enough shear to split diamond plates, using a full 6×6 anisotropic stiffness model for graphite.

Experiment

Arrhenius Etching Kinetics

A 3×3 factorial study across temperature and time to extract etching activation energy, paired with roughness tracking (Sa, Sz) to connect kinetics to surface outcome.

Analysis

Surface Treatment & Termination Survey

ANOVA comparison across surface-treatment process groups (AB, MS, UV-Ozone, WVE POR), alongside a DFT literature review comparing hydrogen, oxygen, and sulfur terminations on diamond (100)/(001) surfaces.

Software

Laser Recipe Templating Engine

Jinja2 templates that generate JSON process recipes, with quadratic depth-correction for damage-layer targeting and guard conditions for minimum slab thickness and layer ordering.

White Papers

Write-ups and technical notes, available to read as PDFs.

    Contact

    Feel free to contact me about the work above, collaborations, or roles.