Invention Grant
US07183891B2 Direct application voltage variable material, devices employing same and methods of manufacturing such devices
有权
直接施加电压可变材料,采用其的装置以及制造这种装置的方法
- Patent Title: Direct application voltage variable material, devices employing same and methods of manufacturing such devices
- Patent Title (中): 直接施加电压可变材料,采用其的装置以及制造这种装置的方法
-
Application No.: US10958442Application Date: 2004-10-05
-
Publication No.: US07183891B2Publication Date: 2007-02-27
- Inventor: Edwin James Harris , Tushar Vyas , Timothy Pachla , James A. Colby
- Applicant: Edwin James Harris , Tushar Vyas , Timothy Pachla , James A. Colby
- Applicant Address: US IL Des Plaines
- Assignee: Littelfuse, Inc.
- Current Assignee: Littelfuse, Inc.
- Current Assignee Address: US IL Des Plaines
- Agency: Bell, Boyd & Lloyd LLP
- Main IPC: H01C7/10
- IPC: H01C7/10

Abstract:
A voltage variable material (“VVM”) including an insulative binder that is formulated to intrinsically adhere to conductive and non-conductive surfaces is provided. The binder and thus the VVM is self-curable and applicable in a spreadable form that dries before use. The binder eliminates the need to place the VVM in a separate device or to provide separate printed circuit board pads on which to electrically connect the VVM. The binder and thus the VVM can be directly applied to many different types of substrates, such as a rigid FR-4 laminate, a polyimide, a polymer or a multilayer PCB via a process such as screen or stencil printing. In one embodiment, the VVM includes two types of conductive particles, one with a core and one without a core. The VVM can also have core-shell type semiconductive particles.
Public/Granted literature
Information query