Photodiode Arrays

Certain applications require multiple detectors either in-line, or in a quad arrangement. Silonex provides standard and custom photodiode arrays, typically constructed of a photodetector chip mounted on a ceramic substrate encapsulated in epoxy, in a diversity of package configurations.

The photograph shows:

1. Our 16 element monolithic photodiode chip mounted on a "dual in line" ceramic substrate. This array can be used for digital proportional detection of the position of an object (using appropriate optics and light source), be it paper, the edge of a tape or even a hole or tear in a material. Application assistance is available from Silonex.
2. The quad array shown has similar package construction, and is ideal for centering (beam or aperture position).
3. For differential position measurement dual devices (3) are most suitable, the output from each element being compared to provide positional feedback in its simplest form. The device in the photograph features a surface mount package.

Our photodiode arrays are RoHS compliant.

Variant configurations are possible through our "Building Block" semi-custom design concept, contact your representative for more information.

Chip Arrays

The suffix of the chip array part numbers denotes the number of elements. For example, an SLDA-61S10-8 has 8 active elements.