A method is for making an electronic device including forming a multilayer circuit board having a non-planar three-dimensional shape defining a membrane switch recess therein, the multilayer circuit board including at least one liquid crystal polymer (LCP) layer, and at least one electrically conductive pattern layer thereon defining at least one membrane switch electrode adjacent the membrane switch recess to define a membrane switch. The method also includes filling the membrane switch recess with a compressible dielectric material, and positioning at least one biasing member in the membrane switch recess.

Fuses having a melamine-coated-steatite foam filler are described. In particular, melamine-coated-steatite foam filler for use in a fuse comprising steatite coated in a melamine compound (e.g., plasticized melamine resin) and then heated to form crystalline foam filler are described. The foam filler may comprise steatite of substantially 3 times the melamine compound by weight and may be heated and then cooled to form the foam filler.

A fuse element and a method for manufacturing the same are provided whereby the fuse element contains an active response part which is formed by an elongated fuse metal strip having at least four metal sub-strips. At least two of the metal sub-strips are parallel and the sub-strips are defined by two elongated recesses within one or two elongated fuse metal strips. The two recesses are provided in serial alignment along the respective fuse metal strip having leading and trailing parts for electrical connection of each fuse element. The elongated fuse metal strip can be reinforced by an elongated dielectric base layer made of polymer material. Accordingly, performance of such a fuse element can be increased and manufacturing costs can be decreased. The fuse element can be applied to a plurality of capacitor sub-units being integrated in housings and submerged in a cooling and insulating liquid within the housing.

A method of assembling a switching rocker arm assembly having an inner arm, an outer arm and a latch. The method includes indenting an outer arm surface on the outer arm, the outer arm surface defining an arcuate aperture. An inner arm surface can be indented on the inner arm at an inner arm latch shelf. A latch can be positioned relative to the inner and outer arms.

A MEMS actuator including buckled flexures and a method of assembling the actuator are described. The assembled MEMS actuator includes an inner frame; an outer frame including latched electrical bars, where a first of the latched bars includes a latch protrusion secured to a corresponding latch groove of a second of the latched bars; and buckled flexures coupling the inner frame to the outer frame. The flexures are buckled during assembly of the MEMS actuator by incorporating the electrical bar latching mechanism into the design of the outer frame of the MEMS actuator. In one implementation, the MEMS actuator is assembled by providing a MEMS actuator with unbuckled flexures coupling the outer frame of the MEMS actuator to an inner frame of the MEMS actuator, where the outer frame includes unlatched electrical bars, and latching the electrical bars of the outer frame, resulting in buckled flexures.

A MEMS actuator including buckled flexures and a method of assembling the actuator are described. The assembled MEMS actuator includes an inner frame; an outer frame including latched electrical bars, where a first of the latched bars includes a latch protrusion secured to a corresponding latch groove of a second of the latched bars; and buckled flexures coupling the inner frame to the outer frame. The flexures are buckled during assembly of the MEMS actuator by incorporating the electrical bar latching mechanism into the design of the outer frame of the MEMS actuator. In one implementation, the MEMS actuator is assembled by providing a MEMS actuator with unbuckled flexures coupling the outer frame of the MEMS actuator to an inner frame of the MEMS actuator, where the outer frame includes unlatched electrical bars, and latching the electrical bars of the outer frame, resulting in buckled flexures.

A fuse includes a fuse element and a fuse body. A portion of the fuse element is housed in a fuse body. The fuse element includes a first terminal and a second terminal disposed outside of the fuse body. The first terminal and the second terminal electrically connects the fuse element to a circuit to be protected and a power source. A first endbell and a second endbell is coupled to the fuse element. A predetermined amount of arc quenching material is disposed within the fuse body. The arc quenching material contacts at least a portion of the fuse element. The predetermined amount of the arc quenching material is less than a total volume size of the fuse tube. The arc quenching material is compacted. A remaining air gap in the fuse tube is filled with a liquid adhesive and cured to a solid state.

A system and method which provide a keyboard with keys which are configured using a viscoelasticity model. More specifically, with the viscoelasticity model at least certain keys within the keyboard include an elastic component and a viscous component. The elastic component provides a component force which occurs substantially immediately upon application of a stress to the key and relaxes substantially immediately upon release of the stress from the key. In this way the elastic component functions similarly to a spring in a mechanical dashpot model key. The viscous component provides a component force which grows with time as long as a stress is applied to the key. In this way, the viscous component functions similarly to a dash in a mechanical dashpot model key.

A backlit keyboard including a reflective component. The backlit keyboard may include a top case forming a top portion of an exterior surface of the keyboard. The backlit keyboard may further include a set of keys positioned within the top case and a membrane positioned below the set of keys. The backlit keyboard may further include a light guide positioned below the membrane and a light source positioned on a portion of the light guide. The light source may be configured to emit light coupled into the light guide and emit stray light not coupled into the light guide. The backlit keyboard may further include a bottom case attached to the top case and forming a bottom portion of the exterior surface of the keyboard. Additionally, the backlit keyboard may include a reflector positioned on an interior surface of the bottom case below the light guide and separated from the light guide by a gap. In some embodiments, the reflector may be configured to redirect the stray light towards the set of keys and provide structural support for the light guide.

A MEMS actuator including buckled flexures and a method of assembling the actuator are described. The assembled MEMS actuator includes an inner frame; an outer frame including latched electrical bars, where a first of the latched bars includes a latch protrusion secured to a corresponding latch groove of a second of the latched bars; and buckled flexures coupling the inner frame to the outer frame. The flexures are buckled during assembly of the MEMS actuator by incorporating the electrical bar latching mechanism into the design of the outer frame of the MEMS actuator. In one implementation, the MEMS actuator is assembled by providing a MEMS actuator with unbuckled flexures coupling the outer frame of the MEMS actuator to an inner frame of the MEMS actuator, where the outer frame includes unlatched electrical bars, and latching the electrical bars of the outer frame, resulting in buckled flexures.