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Products > Semiconductor Components > Components for Fiber-Optic Communication Modules > LD / PD Submounts  Japanese

LD / PD Submounts
LD/PD Submounts

Kyocera provides ceramic submounts for semiconductor laser diodes (LDs) and photodiodes (PDs). Both aluminum nitride (AlN) and alumina (Al2O3) ceramic materials are available. Submounts are supplied with thin-film resistors and gold-tin (AuSn) thin film for either LD or PD attachment.

 Aluminum Nitride (AlN) Submounts

Kyocera offers both multilayer and single-layer AlN substrates. Multilayer AlN features thermal conductivity of 170W/mK, with an electrical ground layer integrated into the structure, and a precision-machined step. Three versions of the single-layer AlN substrates are available, with thermal conductivity values of 170, 200 and 230W/mK. AlN ceramics have a coefficient of thermal expansion comparable to that of indium phosphorus (InP) or gallium arsenide (GaAs).


Aluminum Nitride (AlN) Submount

 Alumina (Al2O3) Submounts

Circuit patterns can be created with thin- or thick-film metallization on a single-layer alumina (Al2O3) ceramic substrate.

Alumina (A2O3) Submount

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