In addition to our standard range, custom devices can be designed and manufactured to meet your specific functional or cost requirements. This includes specialist filter design, either directly onto the silicon or on to glass/plastic substrates.

Applications
We have successfully designed devices that are used in a wide
range of applications including:

• Exhaust gas monitoring
• Document security
• Industrial process control
• Radiation detection and environmental (gas) monitoring
• Medical analysis equipment
• Ride height sensing
• Linear encoder devices
• Vending machine mixture control
• Helicopter rotor vibration monitoring
• Tank turret control

Removing discrete packages from new or existing designs and replacing them with a chip-on-board solution is often the easiest way to reduce cost, size and time of assembly.

Services:
• PCB population
• Clean room environment
• Solder/epoxy die-attach of CCD/CMOS arrays, photodiodes,    LEDs and Lasers - all onto a variety of substrates
• Heavy and fine-wire bond
• Encapsulation of photodiodes, LEDs and arrays (automated    and manual) including lens forming
• Plasma cleaning
• UV oven and spot-lamp cure
• Module potting (for harsh environments)
• Hermetic lid seal
• X-Ray inspection
• Optical alignment

Optical system design projects are managed by Semelab engineers from initial concept through to volume manufacture. Technical feasibility studies are undertaken initially to explore all possible design options, and enable the customer to select the most suitable design for the application. Prototypes can then be built and moved into design for manufacture.

Recent designs include:
• Linear encoder module for harsh environments
• Ride-height sensor
• Tyre temperature sensor

Radiation detectors utilise silicon photodiode technology but with the addition of a crystal or membrane of scintillator material. Scintillators convert the higher energy x-rays into the visible spectrum, which can then be detected by a photodiode.

Custom detectors
• Designed to suit customer-specific applications
• Excellent response to Gamma, Beta and X-ray radiation
• Design, test and manufacture of complementary ASICS for use with your radiation detection system