Patent ID: 6300169
Filing Date: 2001-10-09
Classification: G01L,H01L

Abstract:
A method for manufacturing a pressure sensor, comprising the steps of:applying a semiconductor pressure sensing element to an assembly segment of a lead grid;electrically connecting the semiconductor pressure sensing element to contact segments of the lead grid;inserting the lead grid having the semiconductor pressure sensing element into an injection molding die;surrounding the semiconductor pressure sensing element in the injection molding die with a housing made of an injection molding compound;causing a structure present in the injection molding die to leave open from a jacket of the injection molding compound a pressure feed for the semiconductor pressure sensing element, the structure including a stamp;arranging the stamp in the injection molding die so as to be separated by a gap from one of a side of the assembly segment that is facing away from the semiconductor pressure sensing element and a side of the semiconductor pressure sensing element that is facing away from the assembly segment; andreducing a flow capacity of the injection molding compound in an area of the stamp by changing a temperature of the stamp relative to a temperature of the injection molding compound when liquefied, whereby at least a complete penetration of the injection molding compound into the gap is avoided.