Abstract: A flexible circuit board interconnect is provided with flex strain relief capabilities. The flexible circuit board interconnect includes a polyamide or polyimide (both are nylons) substrate layer, a ground plane layer and a conductor strip layer. The ground plane layer is provided with scalloped edges along opposite sides thereof. The ground plane provides a shield for preventing radio frequency interference to and from the signals passed through the conductor strips. The ground plane layer and the conductor strips are covered at least partially by a pair of soldermask layers which are provided with scalloped edges. The scalloped edges on the soldermask layers and the ground plane prevent the generation of a crease or fold line on the surface of the flexible circuit board interconnect. Each of the conductor strips are provided with a pair of vias on opposite ends of thereof.

Abstract: A flexible circuit board interconnect is provided with flex strain relief capabilities. The flexible circuit board interconnect includes a polyamide or polyimide (both are nylons) substrate layer, a ground plane layer and a conductor strip layer. The ground plane layer is provided with scalloped edges along opposite sides thereof. The ground plane provides a shield for preventing radio frequency interference to and from the signals passed through the conductor strips. The ground plane layer and the conductor strips are covered at least partially by a pair of soldermask layers which are provided with scalloped edges. The scalloped edges on the soldermask layers and the ground plane prevent the generation of a crease or fold line on the surface of the flexible circuit board interconnect. Each of the conductor strips are provided with a pair of vias on opposite ends of thereof.

Abstract: A flexible circuit board interconnect is provided with flex strain relief capabilities. The flexible circuit board interconnect includes a polyamide or polyimide (both are nylons) substrate layer, a ground plane layer and a conductor strip layer. The ground plane layer is provided with scalloped edges along opposite sides thereof. The ground plane provides a shield for preventing radio frequency interference to and from the signals passed through the conductor strips. The ground plane layer and the conductor strips are covered at least partially by a pair of soldermask layers which are provided with scalloped edges. The scalloped edges on the soldermask layers and the ground plane prevent the generation of a crease or fold line on the surface of the flexible circuit board interconnect. Each of the conductor strips are provided with a pair of vias on opposite ends of thereof.

Abstract: A method of making an electrical interconnection is provided for electrically and physically connecting a plurality of bonding sites on an integrated circuit chip to a plurality of external electrical connections. This electrical interconnection method uses a plurality of individual electrical leads which have been formed so as to have the same degree of non-perpendicularity with respect to the rectangular shape of the integrated circuit. All of the individual leads are angled so as to rotate in the same direction around the integrated circuit. This angled lead design provides enhanced strain relief and improved performance during use since the integrated circuit is free to rotate under an applied stress, while efficiently maximizing the number of available electrical leads for bonding to the integrated circuit chip. In addition, this electrical interconnection method is suitable for use with tape automated bonding methods.

Abstract: An electrical interconnection is provided for electrically and physically connecting a plurality of bonding sites on an integrated circuit chip to a plurality of external electrical connections. The electrical interconnection contains a plurality of individual electrical leads which have been formed so as to have the same degree of non-perpendicularity with respect to the rectangular shape of the integrated circuit. All of the individual leads are angled so as to rotate in the same direction around the integrated circuit. This angled lead design provides enhanced strain relief and improved performance during use since the integrated circuit is free to rotate under an applied stress, while efficiently maximizing the number of available electrical leads for bonding to the integrated circuit chip. In addition, this electrical interconnection is suitable for use with tape automated bonding methods.

Abstract: A plurality of discrete bonding sites on an integrated circuit chip are electrically interconnected using a unique electrical interconnection lead. The interconnection lead comprises an electrically conductive strip having a first end and a second end. The strip is integrally connected at its first end to an electrically conductive tape comprising a plurality of conductive strips. The interconnection lead further comprises a plurality of bonding regions provided between the first and second ends of the conductive strip. These bonding regions provide the sites wherein the conductive strip is electrically connected to the appropriate bond site on the chip. The interconnection lead is suitable for use with tape automated bonding and flexible circuitry techniques.

Abstract: Propagation of electromagnetic interference waves is eliminated or substantially reduced by providing an electromagnetic interference shield suitable for shielding electromagnetic interference or radio frequency interference which are generated by offending components on a monolithic integrated circuit chip. The shield is disposed over the offending components of the integrated circuit and is sufficiently large to eliminate or substantially reduce the propagation of any offending interference waves. Alternatively, the shield may be disposed over a non-offending component to prevent radiated electromagnetic interference from entering the non-offending component. The shield is electrically conductive and maintained at a predetermined, primarily constant, electrical potential with respect to the underlying integrated circuit chip.

Abstract: Redundant interconnection bonds are formed on an integrated circuit using an interconnection lead comprising a plurality of electrically conductive fingers separated from each other by an electrically nonconductive medium. The individual conductive fingers are attached to, and extend out from, an electrically conductive base at one end. In addition, the individual conductive fingers are connected to each other at a separate region. The improved interconnect lead is structurally durable and the resulting redundant bond exhibits improved electrical and operating characteristics. The interconnection lead is suitable for use with tape automated bonding or flexible circuitry technologies.

Abstract: An acceleration responsive sensor having a housing of molded dielectric material provided with an elongated sector shaped recess receiving a pendulum supported mass movable under an acceleration pulse into engagement with one or more fingers of a contact assembly within the recess. The mass and the contact assembly are mounted to the housing exteriorly of the recess and covered by a cover assembly of molded dielectric material.