So if you design the columns and beams to be larger than they need to be just for structure,
a sacrificial layer turns into non-combustible char, protecting what is underneath.
«After releasing
the sacrificial layer, we were able to harvest substrate-less small - sized probes with a multilayer layout that markedly reduces their cross-sectional area to the subcellular range,» explains Wei.
They made the devices on 100 mm silicon wafers containing
a sacrificial layer of thin nickel.
For instance, steel, which is one of the key materials used in the construction of armour systems, can be partially replaced with sand as a cost - effective, environmentally friendly, and lightweight
sacrificial layer, given its superior energy absorption performance.
To prevent damage to the first layer, the team used
a sacrificial layer, which was dissolved away after the second layer was applied.
Not exact matches
The
layers are formed around a
sacrificial core, such as solid silica, that is dissolved after the
layers are complete.