4results about How to "Improve printing yield" patented technology

The utility model relates to a back contact battery. The back contact cell includes: a silicon substrate; the first region and the second region are alternately arranged on the back surface of the silicon substrate; the first region comprises a first tunneling oxide layer, a first doped polycrystalline silicon layer, a back passivation layer and a first metal electrode; the second region comprises a second tunneling oxide layer, a second doped polycrystalline silicon layer, a back passivation layer and a second metal electrode; the isolation region is located between the first region and the second region; a first identification point and a second identification point are arranged on the back face of the silicon substrate, the second identification point wraps the first identification point or the first identification point wraps the second identification point, and the height difference D between the first identification point and the second identification point is larger than 0 and smaller than or equal to 3 micrometers. By arranging the first identification point and the second identification point with the height difference, effective and accurate identification is facilitated, a guarantee is provided for the printing precision of subsequent overprinting, and the yield of solar cells can be improved.

The utility model provides a kind of electric wire surface printing mechanism with ink-absorbing font, it is related to printing mechanism technical field, including installation base and printing mechanism ontology, further including supporting piece, set up in the inside of installation base, cleaning box is fixedly set in the side of installation base, clamping piece is set up in the top end outside of cleaning box, clamping plate is set up in the top end outside of cleaning box, can according to the thickness of electric wire, pulling strength and other factors, dynamically adjust supporting degree, prevent electric wire stretch too tight, avoid electric wire and appear deformation, breakage etc. due to excessive stress, guarantee the integrity and stability of electric wire in printing process, effectively improve printing yield.

The utility model discloses a conveying device of high-speed printing equipment, which is characterized in that a plurality of air holes I are uniformly distributed on the surface of a guide belt with holes, and an air suction flat plate is arranged inside the guide belt with the holes; air exhaust holes are formed in at least one side of the air suction flat plate; a plurality of negative pressure fans are continuously arranged in the air suction flat plate in the conveying direction; a plurality of airflow grooves are uniformly distributed in the top surface of the air suction flat plate, the airflow grooves are concave downwards relative to the top surface of the air suction flat plate, and a plurality of second air holes are uniformly distributed in each airflow groove; the guide belt driving mechanism is connected to the perforated guide belt and drives the perforated guide belt to rotate. Under the combined action of the guide belt with the holes, the air suction flat plate and the negative pressure fan, cards can be tightly adsorbed on the surface of the guide belt with the holes in the conveying process, so that the cards can stably and quickly pass through the printing assembly, the problems of shaking, displacement and the like of the cards during high-speed printing are solved, the printing yield of the cards is improved, and the printing quality of the cards is improved. And the printing efficiency is further improved.

The invention provides a manufacturing method of monofilament printing screen cloth. The manufacturing method comprises the following steps: stretching a plurality of yarns and arranging the yarns; enabling the arranged yarn to pass through a reed so as to carry out first-stage spacing adjustment; enabling the equal-line yarns passing through the reed to pass through a reed jig so as to carry out second-stage spacing adjustment; the yarn passing through the reed jig and a high polymer material film layer are pressed to form the monofilament printing screen cloth, and the yarn extends in the same direction and is parallel to one another. In addition, the invention also provides a monofilament printing screen and a monofilament printing composite screen.