US 12,347,701 B2
Molding device with self-blocking feed channel
Martin Fleischmann, Herrenberg (DE)
Assigned to ROBERT BOSCH GMBH, Stuttgart (DE)
Appl. No. 17/787,993
Filed by Robert Bosch GmbH, Stuttgart (DE)
PCT Filed Feb. 3, 2021, PCT No. PCT/EP2021/052550
§ 371(c)(1), (2) Date Jun. 22, 2022,
PCT Pub. No. WO2021/160490, PCT Pub. Date Aug. 19, 2021.
Claims priority of application No. 10 2020 201 666.6 (DE), filed on Feb. 11, 2020.
Prior Publication US 2023/0050046 A1, Feb. 16, 2023
Int. Cl. H01L 21/67 (2006.01); B29C 45/14 (2006.01); B29C 45/27 (2006.01); B29C 45/77 (2006.01); H01L 21/56 (2006.01); B29C 45/26 (2006.01); B29L 31/34 (2006.01)
CPC H01L 21/67126 (2013.01) [B29C 45/14655 (2013.01); B29C 45/2704 (2013.01); B29C 45/77 (2013.01); H01L 21/565 (2013.01); B29C 2045/2687 (2013.01); B29C 2045/279 (2013.01); B29C 2945/76006 (2013.01); B29C 2945/76056 (2013.01); B29C 2945/76257 (2013.01); B29C 2945/76274 (2013.01); B29L 2031/3481 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A molding device for producing a molded module, the molding device comprising:
a tool part and a further tool part, which together enclose a cavity, the tool part having at least one dividing wall which is arranged and configured to subdivide the cavity into at least two sub-cavities including a low-pressure sub-cavity and a high-pressure sub-cavity, the tool part having at least two feed channels including a low-pressure-feed channel and a high-pressure feed channel, the low-pressure feed channel opening into the low-pressure sub-cavity and having a smaller cross-section at least over a longitudinal portion than the high-pressure feed channel that opens into the high-pressure sub-cavity, the low-pressure-feed channel being configured to be pressure-resistantly blocked by hardening molding compound during a predetermined time interval, while the high-pressure feed channel is configured to conduct a molding pressure into the cavity for a longer time interval than the low-pressure feed channel.