Pre-development of a Vulnerable Road Users (VRU) airbag. Phase one: preparation

Micromilling of thin ribs with high aspect ratios

Micro features with high aspect ratios are one of the commonly encountered geometries found in micro products. In the literature, these structures are often used in demonstrator products machined by a micromilling process. In this paper, the challenges in micromilling thin ribs with high aspect ratios have been studied. Due to the scaling effect...

Metals scarcity: Threats and opportunities

Den Haag testgebied voor fietsersairbag

Bimolecular recombination in ambipolar organic field effect transistors

In ambipolar organic field effect transistors (OFET) the shape of the channel potential is intimately related to the recombination zone width W, and hence to the electron–hole recombination strength. Experimentally, the recombination profile can be assessed by scanning Kelvin probe microscopy (SKPM). However, surface potentials as measured by...

Manipulating the Local Light Emission in Organic Light-Emitting Diodes by using Patterned Self-Assembled Monolayers

In organic light-emitting diodes (OLEDs), interface dipoles play an important role in the process of charge injection from the metallic electrode into the active organic layer.[1,2] An oriented dipole layer changes the effective work function of the electrode because of its internal electric field. The differences between the work functions of...

A lightweight suction gripper for micro assembly

Assembly is a crucial part in the realization of a product. Compared to assembly in the macro world, assembly in the micro world is influenced by scaling effects. These include surface forces, high requirements on placement uncertainty and small product dimensions. Conventional high-speed assembly in many cases utilizes suction grippers. However...

Optical sensor platforms by modular assembly of organic electronic devices

Organic electronic devices are ideal for incorporation in sensor devices due to their reduced thickness, weight, and flexibility. Here, we show that organic light emitting diodes (OLED) and organic photodiodes (OPD) can be used in a wide range of optical sensors. Printing technologies allow for cheap production of devices. Using a modular build...

Equivalent length design equations for right-angled microstrip bends

For printed antenna systems, microstrip feeding networks may become quite complex, including several right-angled bends. In designing feed networks we have to consider reflection levels at and electrical lengths of the bends. Removing a part of the area of metallization in the bend's corner can compensate for the excess capacitance and reduce...

Dynamics of Threshold Voltage Shifts in Organic and Amorphous Silicon Field-Effect Transistors

Progress in environmental stability and processability, and the increase of the field-effect mobility of organic semiconductors has triggered their use as the active element in microelectronic devices. The advantages of their application are the easy processing, for example, spin-coating and ink-jet printing, without a temperature hierarchy, and...

Design and test of a communication based advanced driver assistance system

An advanced driver assistance system has been developed, based on a vehicle to vehicle communication system. It is able to control the longitudinal movement in a stop-and-go traffic situation and its purpose is to improve traffic safety, traffic flow and driver comfort. A concept architecture has been developed that uses a world-model to make...

Optical switching device

A description is given of an optical switching device (1) comprising a transparent substrate (3), a switching film (5) of a hydride compound of a trivalent transition or rare earth metal having a thickness of 300 nm, and a palladium capping layer (7) having a thickness of 30 nm. The capping layer is in contact with hydrogen. An electric current...

Furnace for rapid thermal processing with optical switching film disposed between heater and reflector

A furnace (1) for Rapid Thermal Processing of a wafer (7), characterized in that the wafer (7) is heated by lamps (9), and the heat radiation is reflected by an optical switching device (15,17) which is in the reflecting state during the heating stage. During the cooling stage of the wafer (7), the heat is absorbed by the switching device (15,17...

Magnetic head having a core portion of polycrystalline MnZn ferroferrite

Magnetic heads comprising at least one core portion of polycrystalline MnZn-ferroferrite material exhibit a very low so-called "rubbing noise" level if the average grain size of the material ranges between 0.2 and 3.0 micrometers. The rubbing noise level of these heads is even lower than the electronic noise level if the average grain size of...