摘要:
A method of applying paste to an electronic circuit board substrate containing via openings comprises providing over the substrate a mask having openings therein for lines and openings corresponding to the substrate via openings, and providing a roller having a surface adjacent the roller. Paste is then applied either to the mask or to a side of the surface facing the mask. The method then includes rolling the roller and the surface over the mask and flowing the paste into the openings in the mask without substantially sliding the roller and surface over the mask. In the preferred embodiment, paste is applied to a side of the surface facing the mask and the surface containing the paste is rolled over the mask. The surface may be attached to the roller. More preferably, the surface is on a film strip, separate from the roller, disposed between the roller and the substrate.
摘要:
A method of dispensing a flowable conductive paste onto a greensheet from a dispensing apparatus comprising an orifice member having first and second surfaces and a bore therethrough between the surfaces, a pressurized chamber adjacent the orifice member first surface containing the paste, and a punch having a face movable through the orifice member bore. The method comprises positioning the punch outside the orifice member bore such that the punch face is spaced from the orifice member first surface, flowing a desired amount of paste onto the punch face, moving the paste on the punch face through the orifice member bore until the punch face extends beyond the orifice member second surface, and contacting the workpiece with the paste while still on the punch face to deposit the paste on the greensheet. The method then provides for retracting the punch until the punch face is substantially coplanar with the orifice member second surface, and then cleaning the punch face and coplanar orifice member second surface to remove any residual paste thereon.
摘要:
A method of dispensing a flowable conductive paste onto a greensheet from a dispensing apparatus comprising an orifice member having first and second surfaces and a bore therethrough between the surfaces, a pressurized chamber adjacent the orifice member first surface containing the paste, and a punch having a face movable through the orifice member bore. The method comprises positioning the punch outside the orifice member bore such that the punch face is spaced from the orifice member first surface, flowing a desired amount of paste onto the punch face, moving the paste on the punch face through the orifice member bore until the punch face extends beyond the orifice member second surface, and contacting the workpiece with the paste while still on the punch face to deposit the paste on the greensheet. The method then provides for retracting the punch until the punch face is substantially coplanar with the orifice member second surface, and then cleaning the punch face and coplanar orifice member second surface to remove any residual paste thereon.
摘要:
A method of dispensing a flowable conductive paste onto a greensheet from a dispensing apparatus comprising an orifice member having first and second surfaces and a bore therethrough between the surfaces, a pressurized chamber adjacent the orifice member first surface containing the paste, and a punch having a face movable through the orifice member bore. The method comprises positioning the punch outside the orifice member bore such that the punch face is spaced from the orifice member first surface, flowing a desired amount of paste onto the punch face, moving the paste on the punch face through the orifice member bore until the punch face extends beyond the orifice member second surface, and contacting the workpiece with the paste while still on the punch face to deposit the paste on the greensheet. The method then provides for retracting the punch until the punch face is substantially coplanar with the orifice member second surface, and then cleaning the punch face and coplanar orifice member second surface to remove any residual paste thereon.
摘要:
A method of dispensing a flowable conductive paste onto a greensheet from a dispensing apparatus comprising an orifice member having first and second surfaces and a bore therethrough between the surfaces, a pressurized chamber adjacent the orifice member first surface containing the paste, and a punch having a face movable through the orifice member bore. The method comprises positioning the punch outside the orifice member bore such that the punch face is spaced from the orifice member first surface, flowing a desired amount of paste onto the punch face, moving the paste on the punch face through the orifice member bore until the punch face extends beyond the orifice member second surface, and contacting the workpiece with the paste while still on the punch face to deposit the paste on the greensheet. The method then provides for retracting the punch until the punch face is substantially coplanar with the orifice member second surface, and then cleaning the punch face and coplanar orifice member second surface to remove any residual paste thereon.
摘要:
A method and structure for filling an opening in a substrate which includes positioning a sheet above the substrate and punching the sheet into the opening in the substrate, wherein the sheet and the substrate have similar shrinkage characteristics when subjected to a subsequent sintering process.
摘要:
An apparatus and a method are disclosed for providing point of care testing for osmolarity of a bodily fluid. An apparatus is disclosed as having a fluid pathway passing through it for receiving and testing a sample fluid. The invention permits osmolarity testing of a sample fluid wherein the sample fluid has a volume of less than approximately 30 nL, and implements a method and device to measure fluid osmolarity in a clinical setting quickly and accurately, while also reducing evaporation of the fluid.
摘要:
Methods of forming, and the intermediate substrate products formed, are disclosed whereby a via is formed in the substrate, followed by a second via. The second via is formed such that it overlap the first via, and may remove a first portion of any via distortion residing within the first via. A third via is then formed in the substrate to at least overlap the first via. The third via may remove a second portion of any via distortion within the first via. The second and third vias are formed on opposite sides of the first via, such that the first, second and third vias together form a symmetrically extended via within the substrate. Optionally, a rigid support film may be provided under the substrate prior to forming the extended via.
摘要:
A first set of fiducials is formed in fiducial locations on a workpiece such as a ceramic greensheet; a pattern is formed in the workpiece; a best fit set of fiducials is formed by a least squares technique based on the pattern; and a second set of fiducials is formed over the fiducial locations of the best fit set.
摘要:
An apparatus and a method are disclosed for providing point of care testing for osmolarity of a bodily fluid. An apparatus is disclosed as having a fluid pathway passing through it for receiving and testing a sample fluid. The invention permits osmolarity testing of a sample fluid wherein the sample fluid has a volume of less than approximately 30 nL, and implements a method and device to measure fluid osmolarity in a clinical setting quickly and accurately, while also reducing evaporation of the fluid.