Develop and optimize GaN microLED devices for the LightBundle™ interconnect platform using TCAD and electro-optical characterization.
About the role
As a Device Engineer at Avicena, you will drive the design, fabrication, electro-optical characterization, and qualification of GaN microLED devices for the LightBundle™ interconnect platform. The position spans epitaxy, process integration, and on-wafer test to optimize device efficiency, speed, and array uniformity.
What you'll do
- Design and execute L-I-V, spectral, modulation-bandwidth, and reliability-relevant measurements on single devices and large arrays, correlating results to design and process parameters.
- Develop and optimize GaN-based microLED device structures—including epitaxial layer stacks, active regions, and contact schemes—using TCAD and analytical models.
- Diagnose loss mechanisms such as non-radiative recombination, sidewall effects, and current crowding to improve wall-plug efficiency and high-speed performance.
- Partner with epitaxy, process, packaging, test, and systems teams to align device performance with link-level and product requirements.
- Define and refine process flows with process integration and foundry partners, owning device-level design-of-experiments from wafer to characterization.
- Establish device specifications, test plans, and technical reports while contributing to IP generation and design reviews.
What you'll need
- MS or PhD in Electrical Engineering, Applied Physics, Materials Science, Photonics, or a related field (or BS with equivalent industry experience).
- 5–8+ years of hands-on experience in semiconductor optoelectronic or LED/laser device engineering.
- Deep understanding of compound-semiconductor device physics, including carrier transport, recombination, and optical emission.
- Proven expertise in electro-optical device characterization and data analysis covering L-I-V, spectral, and high-speed or modulation measurements.
- Working knowledge of semiconductor fabrication processes, including lithography, etch, deposition, and metallization.
- Proficiency with data analysis and scripting tools such as Python or MATLAB, along with TCAD or equivalent device simulation software.
Nice to have
- Prior hands-on experience with GaN-based microLED devices.
- High-speed or high-bandwidth LED or VCSEL device experience for optical interconnect or display applications.
- Experience with large-area or high-density emitter arrays and array-level uniformity and yield.
- Familiarity with heterogeneous integration or hybrid bonding to CMOS.
- Track record of patents or peer-reviewed publications in optoelectronic devices.
Skills: GaN, microLED, TCAD, L-I-V, electro-optical characterization, device physics
More semiconductor jobs: Device engineer jobs · Sunnyvale jobs
This role has been open 4 days — well below the 53-day median for Device Engineering roles.
Device Engineering · Device Physics
|
Open roles in category
144
|
Median days open
53 d
|
Category median salary (all employers)
$168k
|
See the full market breakdown ▾Category comparison, skills in demand, and who else is hiring
| Metric | Avicena | All employers we track in this specialty (144 roles · 36 employers) |
|---|---|---|
| Open roles in this specialty | 2 | 144 |
| Median days open | 4 d | 53 d (−49 d vs this employer) |
| Median salary (USD postings) | — | $168k |
Skills observed across this category: GaN, microLED, TCAD, L-I-V, electro-optical characterization, device physics
Who's hiring in this category
- GlobalFoundries · 19 open roles · median 68 d
- Micron Technology · 17 open roles · median 108 d
- SanDisk · 16 open roles · median 9 d
- Renesas Electronics · 14 open roles · median 52 d
- Intel Corporation · 10 open roles · median 40 d
- onsemi · 9 open roles · median 52 d
How we counted: 144 open Device Engineering (Device Physics) roles from 36 employers tracked in the SemiconductorJobs index, counted 8 Nov 2026. Specialty figures count only roles carrying this exact specialty label, so an employer's related work in neighbouring specialties is not included there. Figures refresh nightly.