CTE-tuned pyrolytic graphite (PG) substrate to minimize joining stress between laser diode and the substrate
Patent
·
OSTI ID:2293845
A pyrolytic graphite (PG) substrate and laser diode package includes a substrate body having a PG crystalline structure with a basal plane oriented at a pre-determined orientation angle as measured from a longitudinal axis of a heat generating material, such as a laser diode, mounted on a surface of the PG substrate, so that a coefficient of thermal expansion (CTE) of the PG substrate is substantially matched with a CTE of the material.
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC52-07NA27344
- Assignee:
- Lawrence Livermore National Security, LLC (Livermore, CA)
- Patent Number(s):
- 11,811,193
- Application Number:
- 17/526,497
- OSTI ID:
- 2293845
- Resource Relation:
- Patent File Date: 11/15/2021
- Country of Publication:
- United States
- Language:
- English
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