MEMBRANE CIRCUIT BOARD
Number of patents in Portfolio can not be more than 2000
United States of America
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Issued Date -
Feb 20, 2025
app pub date -
Sep 14, 2023
filing date -
Sep 14, 2023
priority date (Note) -
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status (Latency Note)
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Abstract
A membrane circuit board is provided, which has at least one switch region. The membrane circuit board includes first and second membranes, a spacer layer, a first carbon ink contact, and a corresponding contact. The second membrane is located over the first membrane. The spacer layer is located between the first and second membranes, and has an opening in the switch region. The first carbon ink contact is disposed on one of a portion of an upper surface of the first membrane corresponding to the opening and a portion of a lower surface of the second membrane corresponding thereto. The corresponding contact corresponds to the first carbon ink contact, and is disposed on the other thereof. The corresponding contact is a second carbon ink contact or a conductive contact, and resistance of the conductive contact is less than resistance of the first carbon ink contact.
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