Patent ID: 9222989
Filing Date: 2015-12-29
Classification: G01R,H01L,Y10T

Abstract:
1. A method for manufacturing a sensor package comprising; bending a lead frame so as to achieve a first portion extending in a direction along a first longitudinal axis and having a die pad, and a second portion extending in a direction inclined to the longitudinal axis, which second portion has a first side facing away from the first portion and a second side opposing to the first side; mounting an application specific integrated circuit onto the die pad, and mounting a magneto resistive sensor and a ferrite to the second portion; wherein the lead frame is formed as a plurality of fingers in the transit from the first portion to the second portion, at least a part of the fingers are electrically isolated from the die pad and at least one finger being electrically connected to the die pad, which fingers are connected to a tie bar for positioning purposes before mounting, which tie bar is removed after mounting one out of a group consisting of the magneto resistive sensor and the ferrite to the fingers thus fixing the position of the fingers relative to each other; electrically connecting the magneto resistive sensor to the application specific integrated circuit via the fingers of the lead frame that are electrically isolated from the die pad, wherein electrically connecting is carried out as coupling the magneto resistive sensor to the fingers with wire bonds that are attached to the fingers at a side remote from the application specified integrated circuit; and moulding in a single moulding step a body covering the second portion of the lead frame, the magneto resistive sensor, the ferrite, the die pad, the application specific integrated circuit and an electrical connection between the sensor and the application specific integrated circuit, so as to achieve a one-piece moulding body.