Implantable devices having a liquid crystal polymer substrate
First Claim
1. An implantable electrode and interconnect module comprising:
- a first substrate;
a second substrate composed of LCP;
the first substrate including at least one electrode conductor disposed thereon and an associated interconnect conductor disposed thereon electrically connected to the electrode conductor;
the second substrate including an electrical interconnection bonding pad electrically coupled to the interconnect conductor of the first substrate and a conductor electrically connected to the interconnection bonding pad;
a first encapsulant covering a portion of the electrode conductor and completely covering the interconnect conductor, the first encapsulant chemically bonded to the first substrate, wherein the portion of the electrode conductor and the interconnect conductor are protected from an external environment; and
a second encapsulant completely covering the interconnect conductor and the electrical interconnection bonding pad, the second encapsulant chemically bonded to the second substrate, wherein the interconnect conductor and the electrical interconnection bonding pad are protected from an external environment.
4 Assignments
0 Petitions
Accused Products
Abstract
An implantable medical device (IMD) is disclosed that is formed on a substrate composed of liquid crystal polymer (LCP). In one embodiment, the IMD can be an interconnection module for interconnecting an electrode array to an equipment module. The interconnecting module includes conductors disposed on the LCP substrate and coupled to the electrode array, and wherein the conductors are encapsulated using a silicone or LCP encapsulant. In another embodiment, the IMD is an electrode array and interconnect module disposed on an integral LCP substrate. An equipment module can be coupled to the interconnect module. Alternatively, a hybrid electronic circuit can be coupled to the interconnect module for signal processing and conditioning signals received from the electrode array or for providing stimulus signals to the electrode array. In this embodiment, all of the conductors and at least a portion of the electrodes in the electrode array are encapsulated using a silicone or LCP encapsulant. In another embodiment, the IMD is an electrode array, an interconnecting module, and a hybrid circuit that are disposed on an LCP substrate. The interconnecting module is used to provide signal paths to and from the electrodes in the electrode array to the hybrid circuit. In this embodiment, all of the conductors, the hybrid electronic circuit and at least a portion of the electrodes in the electrode array are encapsulated using a silicone or LCP encapsulant.
-
Citations
58 Claims
-
1. An implantable electrode and interconnect module comprising:
-
a first substrate;
a second substrate composed of LCP;
the first substrate including at least one electrode conductor disposed thereon and an associated interconnect conductor disposed thereon electrically connected to the electrode conductor;
the second substrate including an electrical interconnection bonding pad electrically coupled to the interconnect conductor of the first substrate and a conductor electrically connected to the interconnection bonding pad;
a first encapsulant covering a portion of the electrode conductor and completely covering the interconnect conductor, the first encapsulant chemically bonded to the first substrate, wherein the portion of the electrode conductor and the interconnect conductor are protected from an external environment; and
a second encapsulant completely covering the interconnect conductor and the electrical interconnection bonding pad, the second encapsulant chemically bonded to the second substrate, wherein the interconnect conductor and the electrical interconnection bonding pad are protected from an external environment. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
-
-
24. An electrode array comprising:
-
an LCP substrate having an electrode portion and an interconnect portion;
an electrode disposed on the surface of the electrode portion of the LCP substrate;
an electrode interconnect conductor disposed on the electrode portion of the LCP substrate, the conductor electrically connected to the electrode;
an interconnect conductor formed on the interconnect portion of the LCP substrate, the interconnect conductor electrically connected to the electrode interconnect conductor;
an encapsulant covering the interconnect conductor formed on the interconnect portion of the LCP substrate, the electrode interconnect conductor formed on the electrode portion of the LCP substrate, and covering a portion the electrode formed on the electrode portion of the LCP substrate, the encapsulant chemically bonded to the LCP substrate, wherein the encapsulated electrode interconnect conductor, the encapsulated interconnect conductor and the encapsulated portion of the electrode are protected from an external environment. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
-
-
44. An electrode array comprising
an LCP substrate having an electrode portion, an interconnect portion, and a hybrid circuit portion; -
an electrode disposed on the surface of the electrode portion of the LCP substrate;
an electrode interconnect conductor disposed on the electrode portion of the LCP substrate, the conductor electrically connected to the electrode;
an interconnect conductor formed on the interconnect portion of the LCP substrate, the interconnect conductor electrically connected to the electrode interconnect conductor;
a hybrid circuit disposed on the hybrid circuit portion of the LCP substrate, the hybrid circuit electrically connected to the interconnect conductor formed on the interconnect portion of the LCP substrate;
an encapsulant covering the interconnect conductor formed on the interconnect portion of the LCP substrate, the electrode interconnect conductor formed on the electrode portion of the LCP substrate, the hybrid circuit, and covering a portion the electrode formed on the electrode portion of the LCP substrate, the encapsulant chemically bonded to the LCP substrate, wherein the encapsulated electrode interconnect conductor, the encapsulated interconnect conductor, the hybrid circuit and the encapsulated portion of the electrode are protected from an external environment. - View Dependent Claims (45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57)
-
-
58. A micro-wire electrode array comprising:
-
an LCF substrate;
a plurality of electrodes disposed on the surface of the LCP substrate;
a plurality of interconnecting conductors corresponding to the plurality of electrodes, wherein an electrode is electrically connected to a corresponding interconnecting conductor and wherein the LCP substrate is approximately 100 micrometers wide and 25 micrometers thick.
-
Specification