摘要:
A sensor package comprises a carrier (11) comprising a through hole (111), and a sensor chip (2) with a front side (fs) and a back side (bs) and a recess (21) in the back side (bs). The sensor chip (2) is attached to the carrier (11) with its back side (bs) facing the carrier (11) by means of an attachment layer (4) thereby defining a first area (A1) of the carrier (2) the sensor chip (2) rests on and a second area (A2) of the carrier (11) facing the recess (21). The through hole (111) is arranged in the first area (A1) of the carrier (11).
摘要:
A pressure sensor comprising a membrane (11) integrated on a semiconductor chip (1) is coated with a flexible, soft cover layer (24) forming two ports (20, 21) providing access to the opposite sides of the membrane (11). One port (20) is sealingly connected to a connecting member (28) of the housing (36) of the device, while the other communicates with a chamber (39) within the housing (36). An exit opening (45) at the bottom allows the second port (21) to communicate with a second pressure reservoir.
摘要:
A method for manufacturing a semiconductor package, comprising the step of providing an electrically conducting leadframe (2), the leadframe (2) comprising a die pad (21), a set of contact pads (22), a support lead (24) connected to the contact pads (22) of the set, and an area (AR) of reduced thickness (T2) in each contact pad (22) of the set extending across a full width (W) of the respective contact pad (22). A semiconductor chip (3) is mounted on the die pad. The leadframe (2) is arranged in a mold (4), the mold (4) comprising one or more protrusions (411) reaching into the areas (AR) of reduced thickness (T2). A mold compound is applied into the mold (4) for generating an arrangement comprising at least a partial encapsulation (1) of the semiconductor chip (3) with the areas (AR) of reduced thickness (T2) remaining free from the mold compound by means of the protrusions (411) in the mold (4). The arrangement is separated from the support lead (24) in the area (AR) of reduced thickness (T2) of each contact pad (22) of the set.
摘要:
A method for manufacturing a gas sensor package, comprising the steps of mounting a semiconductor chip (3) on a carrier (2) and applying a mold compound (1) for at least partially enclosing the semiconductor chip (3) thereby generating an opening (11) in the mold compound (1), wherein the opening (11) provides access to a portion of the semiconductor chip (3) being uncovered by the mold compound (1). After molding, a sensitive material is applied through the opening (11) onto the uncovered portion of the semiconductor chip (3) for building a layer (31) sensitive to a gas.
摘要:
The substrate (1) carries a sensor device (3) as well as bond pads (5) integrated on a first surface (2) thereof. A structured auxiliary layer (10) forms a plurality of edges (11a, 11b) traversing the first surface (2) between the bond pads (5) and the sensor device (3). A glob (8) of hardening material is applied over the bond pads (5) for protecting the bond wires (6). The horizontal expansion of the glob (8) is stopped at one of the edges (11a, 11b) formed by the auxiliary layer, which makes applying the glob (8) easier.
摘要:
A sensor device comprises a sensitive element (1) and a support (2) for the sensitive element, the support having a surface (3) with an access opening (4) to the sensitive element (1). A layer of adhesive material (5) covers at least parts of the surface (3). A venting medium (6) extends over the entire surface (3) of the support (2) and the access opening (4) and is attached to the support (2) by the layer of adhesive material (5).