Multi-layer PZT microacuator with active PZT constraining layers for a DSA suspension

摘要: A PZT microactuator such as for a hard disk drive has restraining layer bonded on its side that is opposite the which mounted. The comprises stiff and resilient material stainless steel. can cover most or all of top PZT, with an electrical connection being made to where it not covered by layer. reduces bending mounted hence increases effective stroke length, reverses sign length even further. be one more active layers act in direction main layer(s) may thinner than