Patent ID: 11962123
Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
Field: Optics (Instruments)
Classification: CPC H  G | IPC H

Claim 11:
12. A method of manufacturing a semiconductor laser drive device, the method comprising:
a procedure of forming a laser driver on an upper surface of a support plate;
a procedure of forming connection wiring of the laser driver to form a substrate having the laser driver built-in; and
a procedure of mounting a semiconductor laser on one surface of the substrate and forming connection wiring that electrically connects the laser driver and the semiconductor laser by a wiring inductance of 0.5 nanohenries or less via the connection wiring,
wherein the semiconductor laser and the laser driver overlap one another,
wherein an area of the overlap between the semiconductor laser and the laser driver includes less than half of an area of the semiconductor laser and less than half of an area of the laser driver, and
wherein the connection wiring is a via that extends through the substrate, between the laser driver and the semiconductor laser, and within the area of overlap between the semiconductor laser and the laser driver.