Patent ID: 6842964

Claim:
A process of manufacture of electrostatic speakers comprising the steps of: a Preparing a first printed circuit board comprising at least one stator, at least one electrical circuit, and a surrounding membrane holding means; b Preparing an opposing membrane holding means, said opposing membrane holding means comprising a surrounding membrane holding means; and c Affixing a membrane between said printed circuit board and said opposing membrane holding means; wherein said at least one electrical circuit situated on the printed circuit board connects to said at least one stator, and at least one electrical circuit situated either on said printed circuit board or on said opposing membrane holding means connects to the membrane, and wherein, in affixing the membrane between said printed circuit board and said opposing membrane holding means, a central speaker area is situated internal to an area defined by the surrounding membrane holding means, said central speaker area having a space sufficient to permit said membrane to vibrate without contacting any part of, or transferring a charge from the membrane to, the printed circuit board or the opposing membrane holding means, said sufficient space provided either by: (i) preparing the surrounding membrane holding means on one or both sides of the membrane with sufficient height; (ii) preparing the printed circuit board and preparing the opposing membrane holding means, such that each part's central speaker area has sufficient space; (iii) providing an additional means for spacing between the membrane and the printed circuit board and the opposing membrane holding means; or, providing the sufficient space by a combination selected from (i), (ii) and (iii).