Abstract: A module is mounted to a object with a fastener and a special washer. The fastener engages the object through a mounting opening in mounting portion of a module case. The washer has a first portion extending obliquely outward and downward to be deformed between the fastener head and an electrically non-conducting surface of the mounting portion and thus increase a mounting force on the module with mounting advancement of the fastener. The washer has a second portion extending axially into the internal opening to contact an electrically conducting insert therein and thus create a series electrical circuit from the typically grounded object through the fastener, washer and insert to a detecting circuit, which verifies that the module is securely mounted with a predetermined mounting force.

Abstract: A sealed electronic module is manufactured by forming a housing that is open at one end, dispensing a first quantity of potting material into the housing via the open end, inserting a circuit board and electrical connector assembly into the housing so that the inboard end of the circuit board is immersed in the potting material, and dispensing a second quantity of potting material into an area bridging the connector assembly and the housing. When cured, the first quantity of potting material attaches the inboard end of the circuit board to the housing, and the second quantity of potting material attaches the connector to the housing and environmentally seals the module.

Abstract: A circuit board is inserted into an open-ended housing and potting material is dispensed onto the exposed face of the circuit board in a single step to seal the circuit board to the housing. One or more electrical interconnects such as a connector header or a ribbon cable attached to the circuit board extend upward through the potting material so that the potting material also forms an environmental seal around the electrical interconnects.