Abstract: A method for cleaning components of a system for filling holes in a printed circuit board with a fluid fill material includes removing the components being a dispensing head and a manifold connected to the dispensing head preferably as a single unit. The single unit is retained in that format. Excess fluid material from the dispensing head and manifold is evacuated preferably by passing air through the dispensing head and manifold. Then the dispensing head and manifold is placed in a cleaning tub, and the manifold is attached to a solvent pump line. The dispensing head and manifold is flushed with a flow of solvent from the solvent pump line; and excess solvent from the dispensing head and manifold is evacuated, by passing air through the dispensing head and manifold.

Abstract: There is a system for filling holes in a printed circuit board with a fluid fill material. The system receives a printed circuit board vertically within a main body. There is a dispensing head for selectively dispensing a fill material onto the vertically placed circuit board, the dispensing head having a plurality of holes. A feeding reservoir contains the fill material, and the feeding reservoir has a first end and a second end. An outlet system comprises a flow line connected to the first end of the feeding reservoir, and the flow line provides a flow path for the fill material from the first end of the feeding reservoir to the dispensing head. The flow line is attached to a manifold connected to the dispensing head, the manifold including connectors between the branches and with the absence of 90° elbows in the flow path.

Abstract: There is a system for filling holes in a printed circuit board with a fluid fill material. The system receives a printed circuit board vertically within a main body. There is a dispensing head for selectively dispensing a fill material onto the vertically placed circuit board, the dispensing head having a plurality of holes. A feeding reservoir contains the fill material, and the feeding reservoir has a first end and a second end. An outlet system comprises a flow line connected to the first end of the feeding reservoir, and the flow line provides a flow path for the fill material from the first end of the feeding reservoir to the dispensing head. The flow line is attached to a manifold connected to the dispensing head, the manifold including connectors between the branches and with the absence of 90° elbows in the flow path.

Abstract: A method for cleaning components of a system for filling holes in a printed circuit board with a fluid fill material includes removing the components being a dispensing head and a manifold connected to the dispensing head preferably as a single unit. The single unit is retained in that format. Excess fluid material from the dispensing head and manifold is evacuated preferably by passing air through the dispensing head and manifold. Then the dispensing head and manifold is placed in a cleaning tub, and the manifold is attached to a solvent pump line. The dispensing head and manifold is flushed with a flow of solvent from the solvent pump line; and excess solvent from the dispensing head and manifold is evacuated, by passing air through the dispensing head and manifold.

Abstract: A method for conducting a repairable inventory analysis calculates the minimum number of repairable parts to be held in inventory while still being able to satisfy the demand for spare parts even in view of uncertain repair lead times. The method uses a set of equations that relates a customer service level to arbitrary probability distribution functions of a repair lead-time and a part arrival process. The distributions are then searched to locate the optimal inventory level in the distribution.

Abstract: A method of forecasting demand comprises the steps of providing a database containing information regarding a plurality of parts, accessing the database to create a first demand forecast for at least one of the plurality of parts, identifying a group from the plurality of parts, and accessing the database to create a second demand forecast for the group.

Abstract: A charge transfer mechanism is used to locally deposit or remove material for a small structure. A local electrochemical cell is created without having to immerse the entire work piece in a bath. The charge transfer mechanism can be used together with a charged particle beam or laser system to modify small structures, such as integrated circuits or micro-electromechanical system. The charge transfer process can be performed in air or, in some embodiments, in a vacuum chamber.

Abstract: A method for conducting a repairable inventory analysis calculates the minimum number of repairable parts to be held in inventory while still being able to satisfy the demand for spare parts even in view of uncertain repair lead times. The method uses a set of equations that relates a customer service level to arbitrary probability distribution functions of a repair lead-time and a part arrival process. The distributions are then searched to locate the optimal inventory level in the distribution.